General Description
HT82M21A is a 3D mouse controller especially designed for USB and PS/2 applications. The HT82M21A can support the USB Standard Request as well as HID Class Request version 1.1. It is compatible with Microsoft Intelli 3D PS/2 mouse. The Z-axis can support two kinds of scroller input, namely; optomechanical and mechanical. It requires minimal external components to implement 3D USB plus PS/2 optical mouse. It can be briefly described as a Holtek 8-bit MCU with an on-chip USB interface logic. The USB is specified by the Universal Serial Bus Specification V1.1.

Features
*Operating voltage: 4.4V~5.25V
*Complete Universal Serial Bus specs V1.1 compatibility
*Serial Bus Interface Engine (SIE)
*USB transceiver
*Microsoft 3D Intelli mouse and IBM PS/2 mouse compatible
*Supports three buttons (R, M, L) and Z-axis input
*Z-axis can support two kinds of scroller input (optomechanical and mechanical)
*Single chip solution especially for USB mouse function
*HALT function and wake-up feature reduce power consumption
*Plug and Play functions
*Minimal external components
*6MHz crystal oscillator for system clock
*Interface compliant with ADNS-2051, ADNS-2610 and ADNS-2620
*Pass WHQL, USB-IF and EMC testing
*18-pin DIP package

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GENERAL DESCRIPTION
The PCnet-ISA+ controller, a single-chip Ethernet controller, is a highly integrated system solution for the,PC-AT Industry Standard Architecture (ISA ) architecture. It is designed to provide flexibility and compatibility with any existing PC application. This highly integrated
132-pin VLSI device is specifically designed to reduce parts count and cost, and addresses applications where higher system throughput is desired. The PCnet-ISA+ controller is fabricated with AMD’s advanced low-power CMOS process to provide low standby current for power sensitive applications.
The PCnet-ISA+ controller is a DMA-based device with a dual architecture that can be configured in two different operating modes to suit a particular PC application. In the Bus Master Mode all transfers are performed using the integrated DMA controller. This configuration enhances system performance by allowing the PCnet-ISA+ controller to bypass the platform DMA controller and directly address the full 24-bit memory space. The implementation of Bus Master Mode allows minimum parts count for the majority of PC applications. The PCnet-ISA+ controller can be configured to perform Shared Memory operations for compatibility with lowend
machines, such as PC/XTs that do not support Bus Master and high-end machines that require local packet buffering for increased system latency.
The PCnet-ISA+ controller is designed to directly interface with the ISA or EISA system bus. It contains an ISA Plug and Play bus interface unit, DMA Buffer Management Unit, 802.3 Media Access Control function, individual 136-byte transmit and 128-byte receive FIFOs, IEEE 802.3 defined Attachment Unit Interface (AUI), and a Twisted Pair Transceiver Media Attachment Unit. The PCnet-ISA+ controller is also register compatible with the LANCE (Am7990) Ethernet controller and PCnet-ISA. The DMA Buffer Management Unit supports the LANCE descriptor software model. External remote boot and Ethernet physical address PROMs and Electrically Erasable Proms are also supported.
This advanced Ethernet controller has the built-in capability of automatically selecting either the AUI port or the Twisted Pair transceiver. Only one interface is active at any one time. The individual 136-byte transmit and 128-byte receive FIFOs optimize system overhead, providing sufficient latency during packet transmission and reception, and minimizing intervention during normal network error recovery. The integrated Manchester encoder/decoder eliminates the need for an external Serial Interface Adapter (SIA) in the node system. If support for an external encoding/decoding scheme is desired, the embedded General Purpose Serial Interface (GPSI)
allows direct access to/from the MAC. In addition, the device provides programmable on-chip LED drivers for transmit, receive, collision, receive polarity, link integrity and activity, or jabber status. The PCnet-ISA+ controller also provides an External Address Detection Interfaceä (EADIä) to allow external hardware address filtering in internetworking applications.

Am79C98, Am79C100, Am7996, Am79C981, Am79C987, Am79C940, Am79C90, Am79C960, Am79C965, Am79C970

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GENERAL DESCRIPTION
The CM6802 is a green PFC/PWM. It is the new generation of ML4802, ML4841, ML4801 and ML4824-2. Its system clock frequency is generated by the external RT and CT, and then its PWM frequency is 50% of the clock and its PFC frequency is 25% of the clock. CM6802 is designed to be pin-pin compatible with CM6800 family, ML4800 family and ML4824 family. Its PWM (DC to DC section) can be easily configured to Voltage Mode or Current Mode. The green mode function can easily be designed so during the no load condition, its input power can be less than 0.75Watt without shutting off PFC. Its PFC green mode threshold and the PWM green mode threshold can separately set by selecting the proper the RC filter at ISENSE pin (pin3) and CT on RAMP 1 pin (pin 7). Power Factor Correction (PFC) allows the use of smaller, lower cost bulk capacitors, reduces power line loading and stress on the switching FETs, and results in a power supply that fully compiles with IEC-1000-3-2 specifications. Intended as a BiCMOS version of the industry-standard CM6800, CM6802 includes circuits for the implementation of leading edge, average current, “boost” type power factor correction and a trailing edge, pulse width modulator (PWM). Both PFC and PWM Gate-driver with 0.5A capabilities minimizes the need for external driver circuits. Low power requirements improve
efficiency and reduce component costs.
An over-voltage comparator shuts down the PFC section in the event of a sudden decrease in load. The PFC section also includes peak current limiting and input voltage brownout protection. The PWM section can be operated in current or voltage mode, at up to 250kHz, and includes an accurate 50% duty cycle limit to prevent  ransformer saturation.
When RAMP1 is 280KHz, fpfc is 70KHz and fpwm is 140KHz.

FEATURES
*Patent Number #5,565,761, #5,747,977, #5,742,151, #5,804,950, #5,798,635
*fosc=2 x fpwm =4 x fpfc
*No bleed resistor required
*Before the chip wakes up, IAC can start up VCC
*Pin to pin Compatible with CM6800, ML4824 and ML4800 (It needs to modify the values of the external component to work properly).
*User Program PFC automatic green mode threshold (patented)
*User Program PWM automatic green mode threshold (patented)
*Input power less than 0.75Watt without shutting off PFC at no load condition.
*Additional folded-back current limit for PWM section.
*23V Bi-CMOS process
*PWM pulse keeping for the green mode
*VIN OK guaranteed turn on PWM at 2.5V instead of 1.5V
*Internally synchronized leading edge PFC and trailing edge PWM in one IC
*Slew rate enhanced transconductance error amplifier for ultra-fast PFC response
*Low start-up current (30μA typ.)
*Low operating current (3.0mA type.)
*Low total harmonic distortion, high PF
*Reduces ripple current in the storage capacitor between the PFC and PWM sections
*Average current, continuous or discontinuous boost leading edge PFC
*VCC OVP Comparator will turn off both PFC and PWM
*Low Power Detect Comparator
*Tri-Fault detect to meet UL1950
*PWM configurable for current mode or voltage mode operation
*Current fed gain modulator for improved noise immunity
*Brown-out control, over-voltage protection, UVLO, and soft start, and Reference OK

APPLICATIONS
*Desktop PC Power Supply
*Internet Server Power Supply
*IPC Power Supply
*UPS
*Battery Charger
*DC Motor Power Supply
*Monitor Power Supply
*Telecom System Power Supply
*Distributed Power

CM6802IP, CM6802IS

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General Description
HT82M980A is a Plug and Play Windows 2000 and 5-button 3D USB+PS/2 Mouse controller. The HT82M980A can support the USB Standard Request as well as HID Class Request version 1.1. It is compatible with Microsoft Intelli 3D PS/2 mouse. The X/Y axis photo input with built-in Holteks special dynamic photo-input resistor and Z axis can support two kinds of scroller input, namely; mechanical and optomechanical. It requires minimal external components to implement 3D USB plus PS/2 mouse. All its features combined and make up this versatile Holtek 8-bit MCU with an on-chip USB interface logic. The USB is specified by the Universal Serial Bus Specification V1.1.

Features
*Operating voltage: 4.4V~5.25V
*Compatible with Microsoft Windows 2000 and 5-button Wheel Mouse
*Complete Universal Serial Bus specs V1.1 compatibility
*Serial Bus Interface Engine (SIE)
*USB transceiver
*Microsoft 3D Intelli mouse and IBM PS/2 mouse compatible
*Supports five buttons and three axes input
*Z axis can support two kinds of scroller input (optomechanical and mechanical)
*Single chip solution especially for USB mouse function
*HALT function and wake-up feature reduce power consumption
*Plug and Play functions
*Minimal external components
*6MHz crystal oscillator for system clock
*20-pin DIP package

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DESCRIPTION
SNC322 is a 1-channel voice synthesizer and dual-tone melody IC with PWM direct drive circuit. It built-in a 4-bit tiny controller with one 4-bit input port and two 4-bit I/O ports. By programming through the tiny controller in SNC322, user’s varied applications including voice section combination, dual-tone melody, key trigger arrangement, output control, and other logic functions can be easily implemented.

FEATURES
*Single power supply 2.4V – 5.5V
*10 seconds voice capacity are provided (@6KHZ sample rate)
*Built in a 4-bit tiny controller
*One 4-bit input port and two 4-bit I/O ports are provided
*128*4 bits RAM are provided
*32K*10 ROM size are provided for voice data and program
*Maximum 16k program ROM is provided
*Readable ROM code data
*IR carrier signal is provided
*Built in a high quality speech synthesizer
*Adaptive playing speed from 2.5k-20kHz is provided
*One voice channel plus Dual-Tone Melody
*Built in a PWM Direct Drive circuit and a fixed current D/A output
*System clock : 2MHz
*Low Power Reset

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General Description
The EM77950 from ELAN Electronics is a low-cost and high performance 8-bit CMOS advance RISC architecture microcontroller device.
It has an on-chip 1-Mbps RF driver module/Base Band (BB), Serial Peripheral Interface (SPI), dual Pulse Width Modulation (PWM) with 16-bit resolution, an 8-bit Timer Clock Counter (TCC) and a 16-bit Free Run Timer, multi-channel Analog to Digital Converter (ADC) with 8-bit resolution, Key Wake-up function (KWU), Power-on Reset (POR), Watchdog Timer (WDT), and power saving Sleep Mode.
All these features combine to ensure applications require the least external components, hence, not only reduce system cost, but also have the advantage of low power consumption and enhanced device reliability.
The 52-pin EM77950 is available in a very cost-effective version that provides a single chip solution in designing wireless products.

Features
* Operating Voltage Range: 2.2V ~ 3.6V DC (ADC reference volt 3V)
* Operating Temperature Range: 0°C ~ 70°C
* Operating Frequency Range: DC ~ 48MHz (1 clock/cycle)
- 6MHz external clock source
- 6/12/24/48 MHz to Core clock
- 6/12/24/48 MHz to clock
* Internal Memory
- 12K x 16 bits of on-chip Program ROM
- 896 x 8 bits of on-chip Register (SRAM)
* Watchdog Timer (WDT)
* 32 level stacks for both CALL and interrupt subroutine
* Internal Power-on Reset (POR) function
* Code protection function available
* All single cycle (1 clock) instruction except for conditional branches which are two or three cycles.
* Direct, indirect and relative addressing modes
* Low power, high speed CMOS technology
* Power consumption:
- 4 mA @ 3.3V, 6 MHz
- 60 μA @ 3.0V, (RC = 32.768 kHz)
- 1 μA standby current
* 52/44-pin QFP package

EM77950A
EM77950B

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INTRODUCTION
SNC118 is a one-channel voice synthesizer IC with PWM direct drive circuit. It built-in a 4-bit tiny controller with one 4-bit input port, two 4-bit I/O ports.
By programming through the tiny controller in SNC118, user’s varied applications including voice section combination, key trigger arrangement, output control, and other logic functions can be easily implemented.

FEATURES
*Single power supply 2.4V – 5.1V
*52 seconds voice capacity are provided(@6KHZ sample rate)
*Built in a 4-bit tiny controller
*One 4-bit input port, two 4-bit I/O ports are provided
*64*4 bits RAM are provided
*160K*10 ROM size are provided for voice data and program
*Maximum 16k program ROM is provided
*Built in a high quality speech synthesizer
*Adaptive playing speed from 2.5k-20kHz is provided
*One voice channel
*Built in a PWM Direct Drive circuit and a fixed current D/A output
*System clock : 2MHz
*Low Power Reset

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GENERAL DESCRIPTION
The CM6800A is a controller for power factor corrected, switched mode power suppliers.
Power Factor Correction (PFC) allows the use of smaller, lower cost bulk capacitors,
reduces power line loading and stress on the switching FETs, and results in a power supply that fully compiles with IEC-1000-3-2 specifications.
Intended as a BiCMOS version of the industry-standard ML4824, CM6800A includes circuits for the implementation of leading edge, average current, “boost” type power factor correction and a
trailing edge, pulse width modulator (PWM).
Gate-driver with 1A capabilities minimizes the need for external driver circuits.
Low power requirements improve efficiency and reduce component costs.
An over-voltage comparator shuts down the PFC section in the event of a sudden decrease in load.
The PFC section also includes peak current limiting and input voltage brownout protection.
The PWM section can be operated in current or voltage mode, at up to 250kHz, and includes an
accurate 50% duty cycle limit to prevent transformer saturation.
CM6800A includes an additional folded-back current limit for PWM section to provide short circuit protection function.

FEATURES
* Patent Number #5,565,761, #5,747,977, #5,742,151, #5,804,950, #5,798,635
* Pin to pin compatible with ML4800 and FAN6800
* Additional folded-back current limit for PWM section.
* 23V Bi-CMOS process
* VIN OK turn on PWM at 2.25V instead of 1.5V(ML4800).
* Internally synchronized leading edge PFC and trailing edge PWM in one IC
* Slew rate enhanced transconductance error amplifier for ultra-fast PFC response
* Low start-up current (100 μ A typ.)
* Low operating current (3.0mA type.)
* Low total harmonic distortion, high PF
* Reduces ripple current in the storage capacitor between the PFC and PWM sections
* Average current, continuous or discontinuous boost leading edge PFC
* VCC OVP Comparator, Low Power Detect Comparator
* PWM configurable for current mode or voltage mode operation
* Current fed gain modulator for improved noise immunity
* Brown-out control, over-voltage protection, UVLO, and soft start, and Reference OK

APPLICATIONS
* Desktop PC Power Supply
* Internet Server Power Supply
* IPC Power Supply
* UPS
* Battery Charger
* DC Motor Power Supply
* Monitor Power Supply
* Telecom System Power Supply
* Distributed Power

CM6800AGIP
CM6800AGIS

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General Description
 The LAN9215i is a full-featured, single-chip 10/100 Ethernet controller designed for embedded applications where performance, flexibility, ease of integration and system cost control are required.
The LAN9215i has been architected to provide the best price-performance ratio for any 16-bit application with medium performance requirements.
The LAN9215i is fully IEEE 802.3 10BASE-T and 802.3u 100BASE-TX compliant, and supports HP Auto-MDIX.
The LAN9215i includes an integrated Ethernet MAC and PHY with a high-performance SRAM-like slave interface.
The simple, yet highly functional host bus interface provides a glue-less connection to most common 16-bit microprocessors and microcontrollers as well as 32-bit microprocessors with a 16-bit external bus.
The LAN9215i includes large transmit and receive data FIFOs to accommodate high latency applications.
In addition, the LAN9215i memory buffer architecture allows the most efficient use of memory resources by optimizing packet granularity.

PRODUCT FEATURES
Highlights
* Optimized for medium performance applications
* Efficient architecture with low CPU overhead
* Easily interfaces to most 16-bit embedded CPU’s
* Integrated PHY with HP Auto-MDIX
* Supports audio & video streaming over Ethernet: multiple standard-definition (SD) MPEG2 streams
* Compatible with other members of LAN9218 family
Target Applications
* Basic cable, satellite, and IP set-top boxes
* Digital video recorders
* Video-over IP solutions, IP PBX & video phones
* Wireless routers & access points
* Audio distribution systems
* Printers, kiosks, security systems
* General embedded applications
Key Benefits
* Non-PCI Ethernet controller for medium performance
applications
- 16-bit interface
- Burst-mode read support
- External MII Interface
* Eliminates dropped packets
- Internal buffer memory can store over 200 packets
- Automatic PAUSE and back-pressure flow control
* Minimizes CPU overhead
- Supports Slave-DMA
- Interrupt Pin with Programmable Hold-off timer
* Reduces system cost and increases design flexibility
* SRAM-like interface easily interfaces to most embedded CPU’s or SoC’s
* Reduced Power Modes
- Numerous power management modes
- Wake on LAN*
- Magic packet wakeup*
- Wakeup indicator event signal
- Link Status Change
* Single chip Ethernet controller
- Fully compliant with IEEE 802.3/802.3u standards
- Integrated Ethernet MAC and PHY
- 10BASE-T and 100BASE-TX support
- Full- and Half-duplex support
- Full-duplex flow control
- Backpressure for half-duplex flow control
- Preamble generation and removal
- Automatic 32-bit CRC generation and checking
- Automatic payload padding and pad removal
- Loop-back modes
* Flexible address filtering modes
- One 48-bit perfect address
- 64 hash-filtered multicast addresses
- Pass all multicast
- Promiscuous mode
- Inverse filtering
- Pass all incoming with status report
- Disable reception of broadcast packets
* Integrated 10/100 Ethernet PHY
- Supports HP Auto-MDIX
- Auto-negotiation
- Supports energy-detect power down
* High-Performance host bus interface
- Simple, SRAM-like interface
- 16-bit data bus
- 16Kbyte FIFO with flexible TX/RX allocation
- One configurable host interrupt
* Miscellaneous features
- Low-profile 100-pin TQFP, lead-free RoHS Compliant package
- Integrated 1.8V regulator
- General Purpose Timer
- Optional EEPROM interface
- Support for 3 status LEDs multiplexed with Programmable GPIO signals
* Single 3.3V Power Supply with 5V tolerant I/O
* -40°C to +85°C Industrial Temperature Support

Applications
The LAN9215i is well suited for many medium-performance embedded applications, including:
* Printers, kiosks, POS terminals and security systems
* Audio distribution systems
* General embedded systems
* Basic cable, satellite and IP set-top boxes
* Voice-over-IP solutions

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DESCRIPTION
The AIC1630A is a DC-DC converter designed to drive an external power switch for more flexibility, especially in higher voltage and larger power applications.
Typically six components are required to set up a step up configuration easily achieving efficiency beyond 80%.
A few more components are required to set up a step down configuration delivering 4A load current with 83% typical efficiency, 86% at 2A load, and 300μA quiescent current.
The output voltage can be internally set to 5V or externally set to an arbitrary value below
breakdown voltage of the power switch.
Logiccontrolled shutdown mode is provided for power saving.
The low battery detector can be also configured as a linear regulator.
120KHz switching rate reduces the inductor size.
Inductors of 25μH to 50μH inductance are recommended for most applications.

FEATURES
* Default +5V Output Voltage.
* Adjustable Output Voltage with Two Resistors.
* Power-Saving Shutdown Mode (7μA typical).
* 120KHz Switching Rate.
* On-Chip Low Battery Detector.

APPLICATIONS
* Palmtop & Notebook Computers.
* Battery Charger Supply.
* Cellular Telephone.
* LCD Contrast Supply.
* Flash Memory Programmer.
* Battery Backup Supplies.
* Portable Instruments.

AIC1630ACN
AIC1630ACS

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