T89C51RD2-3CSCL ATMEL [ATMEL Corporation], T89C51RD2-3CSCL Datasheet
T89C51RD2-3CSCL
Manufacturer Part Number
T89C51RD2-3CSCL
Description
0 to 40 MHz Flash Programmable 8-bit Microcontroller
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.T89C51RD2-3CSCL.pdf
(104 pages)
Features
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80C52 Compatible
ISP (In-System Programming) Using Standard V
Boot Flash Contains Low Level Flash Programming Routines and a Default Serial
Loader
High-Speed Architecture
64K bytes On-chip Flash Program/Data Memory
On-chip 1024 Bytes Expanded RAM (XRAM)
Dual Data Pointer
Improved X2 Mode with Independant Selection for CPU and Each Peripheral
2K bytes EEPROM Block for Data Storage
Programmable Counter Array with
Power Control Modes:
Power Supply:
Temperature Ranges: Commercial (0 to +70°C) and Industrial (-40 to +85°C)
Packages: PDIL40, PLCC44, VQFP44, PLCC68, VQFP64
– 8051 Pin and Instruction Compatible
– Four 8-bit I/O Ports (or 6 in 64/68 Pins Packages)
– Three 16-bit Timer/Counters
– 256 bytes Scratch Pad RAM
– 7 Interrupt Sources With 4 Priority Levels
– 40 MHz in Standard Mode
– 20 MHz in X2 Mode (6 Clocks/Machine Cycle)
– Byte and Page (128 bytes) Erase and Write
– 100K Write Cycles
– Software Selectable Size (0, 256, 512, 768, 1024 bytes)
– 768 Bytes Selected at Reset for T87C51RD2 Compatibility
– 100K Write Cycle
– High Speed Output
– Compare/Capture
– Pulse Width Modulator
– Hardware Watchdog Timer (One-time Enabled with Reset-out)
– Idle Mode
– Power-down Mode
– M version: Commercial and Industrial
– L version: Commercial and industrial
Variable Length MOVX for Slow RAM/Peripherals
Watchdog Timer Capabilities
Asynchronous Port Reset
Full-duplex Enhanced UART
4.5V to 5.5V: 40 MHz (X1 Mode), 20 MHz (X2 Mode)
3V to 5.5V: 33 MHz (X1 Mode), 16 MHz (X2 Mode)
2.7V to 3.6V: 25 MHz (X1 Mode), 12 MHz (X2 Mode)
Low EMI (Inhibit ALE)
CC
Power Supply
0 to 40 MHz
Flash
Programmable
8-bit
Microcontroller
T89C51RD2
Rev. 4243G–8051–05/03
1
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