AT89C51ED2-3CSIM Atmel, AT89C51ED2-3CSIM Datasheet - Page 2
![IC 8051 MCU FLASH 64K 40DIP](/photos/6/70/67049/453-40-dip_sml.jpg)
AT89C51ED2-3CSIM
Manufacturer Part Number
AT89C51ED2-3CSIM
Description
IC 8051 MCU FLASH 64K 40DIP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.ATWEBDVK-02RC.pdf
(137 pages)
Specifications of AT89C51ED2-3CSIM
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)
Data Bus Width
8 bit
Data Ram Size
64 KB
Interface Type
SPI, UART
Maximum Clock Frequency
60 MHz
Number Of Programmable I/os
32
Number Of Timers
3 x 16 bit
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
-
Lead Free Status / Rohs Status
No
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89C51ED2-3CSIM
Manufacturer:
ATMEL
Quantity:
77 760
1. Description
2
AT89C51RD2/ED2
AT89C51RD2/ED2 is high performance CMOS Flash version of the 80C51 CMOS single chip 8-
bit microcontroller. It contains a 64-Kbyte Flash memory block for code and for data.
The 64-Kbytes 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 V
The AT89C51RD2/ED2 retains all of the features of the Atmel 80C52 with 256 bytes of internal
RAM, a 9-source 4-level interrupt controller and three timer/counters. The AT89C51ED2 pro-
vides 2048 bytes of EEPROM for nonvolatile data storage.
In addition, the AT89C51RD2/ED2 has a Programmable Counter Array, an XRAM of 1792
bytes, a Hardware Watchdog Timer, SPI interface, Keyboard, a more versatile serial channel
that facilitates multiprocessor communication (EUART) and a speed improvement mechanism
(X2 Mode).
The fully static design of the AT89C51RD2/ED2 allows to reduce system power consumption by
bringing the clock frequency down to any value, including DC, without loss of data.
The AT89C51RD2/ED2 has 2 software-selectable modes of reduced activity and an 8-bit clock
prescaler for further reduction in power consumption. In the Idle mode the CPU is frozen while
the peripherals and the interrupt system are still operating. In the Power-down mode the RAM is
saved and all other functions are inoperative.
The added features of the AT89C51RD2/ED2 make it more powerful for applications that need
pulse width modulation, high speed I/O and counting capabilities such as alarms, motor control,
corded phones, and smart card readers.
Table 1-1.
PLCC44/VQFP44
PLCC68/VQFP64
Package
CC
pin.
Memory Size and I/O Pins
Flash (Bytes)
64K
64K
XRAM (Bytes)
1792
1792
Total RAM (Bytes)
2048
2048
4235K–8051–05/08
I/O
34
50