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Parametric List of 251 Devices Available from Atmel
| Atmel (251 Family) | ||||||||||||||||||||||||
| Part Number | Device Core | Max XTAL Speed (MIPS) | On-chip RAM | On-chip EEPROM | On-chip FLASH | On-chip ROM | ROM Lock | I/O Ports | Interrupt Sources & Levels | Timers / Counters | Real Time Clock | Watch Dog Timer | Analog Comp- arators | A/D Channels (Bits) | D/A Channels (Bits) | PCA PWM CAPCOM | Communications | Power Down Mode | Idle Mode | Brown Out Detect | Other Features | Power Supply (Volts) | Packages Available | Part Number |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T87C251G1A | 251 | 16 MHz (8) | 1K | 16K EPROM/OTP | 32 | 9/4 | 3 | Y | 5/5/5 | UART, I²C, SPI | Y | Y | 4.0-6.0 | CQPJ44, DIP40, PLCC44 | T87C251G1A | |||||||||
| T8xC251A1 | 251 | 16 MHz (8) | 1K | 24K EPROM/ROM/OTP | 32 | 9/4 | 2 | Y | 4(8) | 5/5/5 | UART | Y | Y | 4.0-6.0 | PLCC44, QFP44, TQFP44 | T8xC251A1 | ||||||||
| T8xC251G1D | 251 | 24 MHz (12) | 1K | 16K EPROM/ROM/OTP | 32 | 9/4 | 3 | Y | 5/5/5 | UART, I²C, SPI | Y | Y | 4.0-6.0 | DIP40, PLCC44, VQFP44 | T8xC251G1D | |||||||||
| T8xC251G2D | 251 | 24 MHz (12) | 1K | 32K EPROM/ROM/OTP | 32 | 7/4 | 3 | Y | 5/5/5 | UART, I²C, SPI | Y | Y | 4.0-6.0 | CQPJ44, DIP40, PLCC44, VQFP44 | T8xC251G2D | |||||||||
Devices Found = 4.
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