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AT76C651B from ATMEL

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AT76C651B

Manufacturer: ATMEL

A DVB-compliant Quadrature Amplitude Modulation (QAM) demodulation circuit which can be used in DVB and other applications using Quadrature Phase Shift Keying (OPSK) or QAM transmission systems. The AT76C651B uses direct IF sampling or bas

Partnumber Manufacturer Quantity Availability
AT76C651B ATMEL 699 In Stock

Description and Introduction

A DVB-compliant Quadrature Amplitude Modulation (QAM) demodulation circuit which can be used in DVB and other applications using Quadrature Phase Shift Keying (OPSK) or QAM transmission systems. The AT76C651B uses direct IF sampling or bas The AT76C651B is a microcontroller manufactured by ATMEL. Here are its key specifications:

- **Core**: 8-bit AVR RISC architecture
- **Flash Memory**: 128 KB
- **SRAM**: 4 KB
- **EEPROM**: 4 KB
- **Operating Voltage**: 2.7V to 5.5V
- **Clock Speed**: Up to 16 MHz
- **I/O Pins**: 32
- **Timers**: 3 (two 8-bit, one 16-bit)
- **USART**: 1
- **SPI Interface**: Yes
- **ADC Channels**: 8 (10-bit resolution)
- **Package**: 44-pin TQFP

These are the factual specifications of the AT76C651B microcontroller from ATMEL.

Partnumber Manufacturer Quantity Availability
AT76C651B ATM 10 In Stock

Description and Introduction

A DVB-compliant Quadrature Amplitude Modulation (QAM) demodulation circuit which can be used in DVB and other applications using Quadrature Phase Shift Keying (OPSK) or QAM transmission systems. The AT76C651B uses direct IF sampling or bas The AT76C651B is a microcontroller manufactured by Atmel (now part of Microchip Technology). Below are the key specifications based on available factual data:

1. **Architecture**: 8-bit AVR RISC-based microcontroller.  
2. **Flash Memory**: 64 KB (in-system programmable).  
3. **SRAM**: 4 KB.  
4. **EEPROM**: 2 KB.  
5. **Clock Speed**: Up to 16 MHz.  
6. **I/O Pins**: 53 programmable I/O lines.  
7. **Timers/Counters**: Three 16-bit timers/counters with PWM.  
8. **Communication Interfaces**:  
   - USART (Universal Synchronous/Asynchronous Receiver/Transmitter).  
   - SPI (Serial Peripheral Interface).  
   - TWI (Two-Wire Interface, I²C compatible).  
9. **ADC**: 10-bit, 8-channel ADC.  
10. **Operating Voltage**: 4.5V to 5.5V.  
11. **Packages**: Available in TQFP and QFN packages.  
12. **Special Features**:  
    - On-chip analog comparator.  
    - Power-on reset and programmable brown-out detection.  
    - Internal calibrated oscillator.  

This information is based on Atmel's official documentation for the AT76C651B microcontroller. For detailed specifications, refer to the datasheet.

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