AT87C51RD2 Datasheet | Atmel

Features - 80C52 patible - 8051 pin and instruction patible - Four 8-bit I/O ports - Three 16-bit timer/counters - 256 bytes scratchpad RAM High-Speed Architecture - 40 MHz @ 5V, 30MHz @ 3V - X2 Speed Improvement capability (6 clocks/machine cycle) - 30 MHz @ 5V, 20 MHz @ 3V (Equivalent to - 60 MHz @ 5V, 40 MHz @ 3V) Dual Data Pointer On-chip ROM/EPROM (16K-bytes, 32K-bytes, 64K-bytes) On-chip e Xpanded RAM (XRAM) (256 or 768 bytes) Programmable Clock Out and Up/Down Timer/Counter 2 Programmable Counter Array with - High Speed Output, - pare / Capture, - Pulse Width Modulator, - Watchdog Timer Capabilities Hardware Watchdog Timer (One-time enabled with Reset-Out) 2 extra 8-bit I/O ports available on RD2 with high pin count packages Asynchronous port reset Interrupt Structure with - 7 Interrupt sources, .. - 4 level priority interrupt system Full duplex Enhanced UART - Framing error detection - Automatic address recognition Low EMI (inhibit ALE) Power Control modes - Idle mode - Power-down mode - Power-off Flag Once mode (On-chip Emulation) Power supply: 4.5-5V, 2.7-5.5V Temperature ranges: mercial (0 to 70o C) and Industrial (-40 to 85 o C) Packages: PDIL40, PLCC44, VQFP44 1.4, PLCC68, VQFP64 1.4 - - - - - - High Performance 8-bit Microcontroller TS80C51RA2 TS80C51RD2 TS83C51RB2 TS83C51RC2 TS83C51RD2 TS87C51RB2 TS87C51RC2 TS87C51RD2 AT80C51RA2 AT80C51RD2 AT83C51RB2 AT83C51RC2 AT83C51RD2 AT87C51RB2 AT87C51RC2 AT87C51RD2 - - - - - - - - - - - 2. Description Atmel TS8x C51Rx2 is a high performance CMOS ROM, OTP, EPROM and ROMless versions of the 80C51 CMOS single chip 8-bit microcontroller. The TS8x C51Rx2 retains all features of the 80C51 with extended ROM/EPROM capacity (16/32/64 Kbytes), 256 bytes of internal RAM, a 7-source , 4-level interrupt system, an on-chip oscilator and three timer/counters. In addition, the TS80C51Rx2 has a Programmable Counter Array, an XRAM of 256 or 768 bytes, a Hardware Watchdog Timer, a more versatile serial channel that...