The AT87F51 is a low-power, high-performance CMOS 8-bit microcomputer with 4K bytes of QuickFlash Programmable Read Only Memory. The device is manufactured using Atmel’s high density nonvolatile memory technology and is compatible with the industry standard MCS-51™ instruction set and pinout. The on-chip QuickFlash allows the program memory to be user programmed by a conventional nonvolatile programmer.
The Atmel AT87F51 is a low-power, high-performance CMOS 8-bit microcomputer designed for embedded control applications. It features 4K bytes of user-programmable QuickFlash memory and is fully compatible with the industry-standard MCS-51 instruction set and pinout.
The device operates at frequencies from 0 Hz to 24 MHz and includes 128 bytes of internal RAM and 32 programmable I/O lines. It supports two software-selectable power-saving modes: Idle Mode, which stops the CPU while keeping peripherals active, and Power Down Mode, which freezes the oscillator and disables most chip functions.
| Memory Type | QuickFlash Programmable Read Only Memory |
|---|---|
| Operating Frequency | 0 Hz to 24 MHz |
| Internal RAM | 128 x 8-Bit |
| I/O Lines | 32 Programmable |
| Timer/Counters | Two 16-Bit |
| Interrupt Sources | Six |
| Instruction Set Compatibility | MCS-51 |
The device supports fully static operation from 0 Hz up to 24 MHz.
The microcontroller includes 128 bytes of 8-bit internal RAM.
Yes, the device is compatible with the industry standard MCS-51 instruction set and pinout.