AT89C51RB2SLSUM ATMEL Corporation, AT89C51RB2SLSUM Datasheet
AT89C51RB2SLSUM
Manufacturer Part Number
AT89C51RB2SLSUM
Description
PLCC44
Manufacturer
ATMEL Corporation
Datasheet
1.AT89C51RB2RLTUL.pdf
(127 pages)
Specifications of AT89C51RB2SLSUM
Date_code
08+
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Features
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Description
The AT89C51RB2/RC2 is a high-performance Flash version of the 80C51 8-bit micro-
controllers. It contains a 16K or 32K Bytes Flash memory block for program and data.
The Flash memory can be programmed either in parallel mode or in serial mode with
the ISP capability or with software. The programming voltage is internally generated
from the standard VCC pin.
80C52 Compatible
Variable Length MOVX for Slow RAM/Peripherals
ISP (In-system Programming) Using Standard V
Boot ROM Contains Low Level Flash Programming Routines and a Default Serial
Loader
High-speed Architecture
On-chip 1024 Bytes Expanded RAM (XRAM)
Keyboard Interrupt Interface on Port P1
SPI Interface (Master/Slave Mode)
8-bit Clock Prescaler
Improved X2 Mode with Independent Selection for CPU and Each Peripheral
Programmable Counter Array 5 Channels
Asynchronous Port Reset
Full Duplex Enhanced UART
Dedicated Baud Rate Generator for UART
Low EMI (Inhibit ALE)
Hardware Watchdog Timer (One-time Enabled with Reset-out)
Power Control Modes
Power Supply:
Temperature Ranges: Commercial (0 to +70°C) and Industrial (-40°C to +85°C)
Packages: PDIL40, PLCC44, VQFP44
– 8051 Pin and Instruction Compatible
– Four 8-bit I/O Ports
– Three 16-bit Timer/Counters
– 256 Bytes Scratch Pad RAM
– 9 Interrupt Sources with 4 Priority Levels
– Dual Data Pointer
– In Standard Mode:
– In X2 mode (6 Clocks/machine cycle)
– 16K/32K Bytes On-chip Flash Program/Data Memory
– Byte and Page (128 Bytes) Erase and Write
– 100K Write Cycles
– Software Selectable Size (0, 256, 512, 768, 1024 Bytes)
– 256 Bytes Selected at Reset for TS87C51RB2/RC2 Compatibility
– High-speed Output
– Compare/Capture
– Pulse Width Modulator
– Watchdog Timer Capabilities
– Idle Mode
– Power-down Mode
– Power-off Flag
– 2.7 to 3.6 (3V Version)
– 2.7 to 5.5V (5V Version)
40 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution)
60 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)
20 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution)
30 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)
CC
Power Supply
8-bit
Microcontroller
with 16K/
32K Bytes Flash
AT89C51RB2
AT89C51RC2
Rev. 4180E–8051–10/06
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