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Software

Description

AT89C51RB2/AT89C51RC2

AT89C51RB2/AT89C51RC2 Errata

(file size: 78758, 3 pages, updated: 06/2004)

AT89C51RB2/RC2

AT89C51RB2/RC2 Complete

(file size: 1567693, 127 pages, revision E, updated: 10/2006)
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High-performance, 8-bit microcontroller with 32KB flash. It retains all features of the 80C52 with 256 Bytes of internal RAM, a 9-source 4-level interrupt controller, and three timer/counters.

It features a programmable counter array, an XRAM of 1024 bytes, hardware watchdog timer, keyboard interface, SPI interface, versatile serial channel that facilitates multiprocessor communication (EUART), and a speed improvement mechanism (X2 mode).

We recommend implementing an external brown-out to prevent any flash/EEPROM corruption during power-on or power-off.

Key Parameters

Parameter
Value

Flash (Kbytes):

32 Kbytes

Pin Count:

44

Max. Operating Freq. (MHz):

60 MHz

CPU:

8051-12C

Max I/O Pins:

32

SPI:

1

UART:

1

SRAM (Kbytes):

1.25

Self Program Memory:

API

Operating Voltage (Vcc):

2.7 to 5.5

 

Ordering Codes

Ordering Code Package Speed Power Supply Operational Range Comment Buy Online Samples
AT89C51RC2-RLRUM LQFP RL 44 Industrial (A) (-40°C to 85°C) Buy
AT89C51RC2-SLSUM PLCC SL 44 Industrial (A) (-40°C to 85°C) Buy Request
AT89C51RC2-SLRUL PLCC SL 44 Industrial (A) (-40°C to 85°C) Buy
AT89C51RC2-SLRUM PLCC SL 44 Industrial (A) (-40°C to 85°C) Buy Request
AT89C51RC2-RLTUL LQFP RL 44 Industrial (A) (-40°C to 85°C) Buy Request
AT89C51RC2-3CSUM PDIP 3C 40 Industrial (A) (-40°C to 85°C) Buy Request
AT89C51RC2-RLRUL LQFP RL 44 Industrial (A) (-40°C to 85°C) Buy
AT89C51RC2-SLSUL PLCC SL 44 Industrial (A) (-40°C to 85°C) Buy Request
AT89C51RC2-RLTUM LQFP RL 44 Industrial (A) (-40°C to 85°C) Buy Request