AT89C51ED2-3CSUM Atmel, AT89C51ED2-3CSUM Datasheet - Page 3
AT89C51ED2-3CSUM
Manufacturer Part Number
AT89C51ED2-3CSUM
Description
IC 8051 MCU FLASH 64K 40DIP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.ATWEBDVK-02RC.pdf
(137 pages)
Specifications of AT89C51ED2-3CSUM
Core Processor
8051
Core Size
8-Bit
Speed
60MHz
Connectivity
SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
34
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
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2. Block Diagram
Figure 2-1.
4235K–8051–05/08
Block Diagram
ALE/
XTALA1
XTALA2
PSEN
PROG
WR
EA
RD
(2)
(2)
CPU
(2) (2)
(2)
Timer 0
Timer 1
EUART
(2)
CORE
C51
(2) (2)
256x8
RAM
Ctrl
INT
IB-bus
(1): Alternate function of Port 1
(2): Alternate function of Port 3
Port 0 Port 1
64K x 8
Flash
Parallel I/O Ports &
External Bus
Port 2
1792 x 8
XRAM
Port 3
(1)
Port4
PCA
Port 5
(1)
(1)
Timer2
(1)
(1) (1)(1)(1)
AT89C51RD2/ED2
SPI
Keyboard
(1)
2K x 8
BOOT
ROM
Watch
-dog
Regulator
POR / PFD
(AT89C51ED2)
EEPROM*
2K x 8
3
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