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AT89C51RD2

Description
8-BIT, FLASH, 60 MHz, MICROCONTROLLER, PQCC44
Categorysemiconductor    The embedded processor and controller   
File Size1MB,137 Pages
ManufacturerAtmel (Microchip)
Download Datasheet Parametric Compare View All

AT89C51RD2 Overview

8-BIT, FLASH, 60 MHz, MICROCONTROLLER, PQCC44

AT89C51RD2 Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals44
Maximum operating temperature85 Cel
Minimum operating temperature-40 Cel
Maximum supply/operating voltage5.5 V
Minimum supply/operating voltage4.5 V
Rated supply voltage5 V
External data bus width8
Number of input and output buses32
Line speed60 MHz
Processing package descriptionGREEN, PLASTIC, LCC-44
Lead-freeYes
EU RoHS regulationsYes
stateACTIVE
CraftsmanshipCMOS
packaging shapeSQUARE
Package SizeCHIP CARRIER
surface mountYes
Terminal formJ BEND
Terminal spacing1.27 mm
terminal coatingMATTE TIN
Terminal locationQUAD
Packaging MaterialsPLASTIC/EPOXY
Temperature levelINDUSTRIAL
Address bus width16
Number of digits8
Maximum FCLK clock frequency40 MHz
Microprocessor typeMICROCONTROLLER
PWM channelYes
ROM programmingFLASH
Features
80C52 Compatible
– 8051 Instruction Compatible
– Six 8-bit I/O Ports (64 Pins or 68 Pins Versions)
– Four 8-bit I/O Ports (44 Pins Version)
– Three 16-bit Timer/Counters
– 256 Bytes Scratch Pad RAM
– 9 Interrupt Sources with 4 Priority Levels
Integrated Power Monitor (POR/PFD) to Supervise Internal Power Supply
ISP (In-System Programming) Using Standard V
CC
Power Supply
2048 Bytes Boot ROM Contains Low Level Flash Programming Routines and a Default
Serial Loader
High-speed Architecture
– In Standard Mode:
• 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)
– In X2 mode (6 Clocks/machine cycle)
• 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)
64K Bytes On-chip Flash Program/Data Memory
– Byte and Page (128 Bytes) Erase and Write
– 100k Write Cycles
On-chip 1792 bytes Expanded RAM (XRAM)
– Software Selectable Size (0, 256, 512, 768, 1024, 1792 Bytes)
– 768 Bytes Selected at Reset for T89C51RD2 Compatibility
On-chip 2048 Bytes EEPROM Block for Data Storage (AT89C51ED2 Only)
100K Write Cycles
Dual Data Pointer
Variable Length MOVX for Slow RAM/Peripherals
Improved X2 Mode with Independent Selection for CPU and Each Peripheral
Keyboard Interrupt Interface on Port 1
SPI Interface (Master/Slave Mode)
8-bit Clock Prescaler
16-bit Programmable Counter Array
– High Speed Output
– Compare/Capture
– Pulse Width Modulator
– Watchdog Timer Capabilities
Asynchronous Port Reset
Full-duplex Enhanced UART with Dedicated Internal Baud Rate Generator
Low EMI (Inhibit ALE)
Hardware Watchdog Timer (One-time Enabled with Reset-Out), Power-off Flag
Power Control Modes: Idle Mode, Power-down Mode
Single Range Power Supply: 2.7V to 5.5V
Industrial Temperature Range (-40 to +85°C)
Packages: PLCC44, VQFP44, PLCC68, VQFP64
8-bit Flash
Microcontroller
AT89C51RD2
AT89C51ED2

AT89C51RD2 Related Products

AT89C51RD2 AT89C51ED2 AT89C51RD2_08 AT89C51RD2-SLSUM
Description 8-BIT, FLASH, 60 MHz, MICROCONTROLLER, PQCC44 8-BIT, FLASH, 60 MHz, MICROCONTROLLER, PQCC44 8-BIT, FLASH, 60 MHz, MICROCONTROLLER, PQCC44 8-BIT, FLASH, 60 MHz, MICROCONTROLLER, PQCC44
Number of terminals 44 44 44 44
Maximum operating temperature 85 Cel 85 Cel 85 Cel 85 °C
Minimum operating temperature -40 Cel -40 Cel -40 Cel -40 °C
External data bus width 8 8 8 8
surface mount Yes Yes Yes YES
Terminal form J BEND J BEND J BEND J BEND
Terminal location QUAD QUAD QUAD QUAD
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Address bus width 16 16 16 16
PWM channel Yes Yes Yes YES
Number of functions 1 1 1 -
Maximum supply/operating voltage 5.5 V 5.5 V 5.5 V -
Minimum supply/operating voltage 4.5 V 4.5 V 4.5 V -
Rated supply voltage 5 V 5 V 5 V -
Number of input and output buses 32 32 32 -
Line speed 60 MHz 60 MHz 60 MHz -
Processing package description GREEN, PLASTIC, LCC-44 GREEN, PLASTIC, LCC-44 GREEN, PLASTIC, LCC-44 -
Lead-free Yes Yes Yes -
EU RoHS regulations Yes Yes Yes -
state ACTIVE ACTIVE ACTIVE -
Craftsmanship CMOS CMOS CMOS -
packaging shape SQUARE SQUARE SQUARE -
Package Size CHIP CARRIER CHIP CARRIER CHIP CARRIER -
Terminal spacing 1.27 mm 1.27 mm 1.27 mm -
terminal coating MATTE TIN MATTE TIN MATTE TIN -
Packaging Materials PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY -
Number of digits 8 8 8 -
Maximum FCLK clock frequency 40 MHz 40 MHz 40 MHz -
Microprocessor type MICROCONTROLLER MICROCONTROLLER MICROCONTROLLER -
ROM programming FLASH FLASH FLASH -
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