AT89C51ED2-RLRUM Atmel, AT89C51ED2-RLRUM Datasheet - Page 34
![IC MCU FLASH 8051 64K 5V 44-VQFP](/photos/6/92/69202/313-44-vqfp_sml.jpg)
AT89C51ED2-RLRUM
Manufacturer Part Number
AT89C51ED2-RLRUM
Description
IC MCU FLASH 8051 64K 5V 44-VQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.ATWEBDVK-02RC.pdf
(137 pages)
Specifications of AT89C51ED2-RLRUM
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
44-TQFP, 44-VQFP
Core
8051
Processor Series
AT89x
Data Bus Width
8 bit
Maximum Clock Frequency
60 MHz
Data Ram Size
2 KB
Number Of Programmable I/os
32
Number Of Timers
3
Operating Supply Voltage
2.7 V to 5.5 V
Mounting Style
SMD/SMT
Interface Type
UART, SPI
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Details
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Manufacturer
Quantity
Price
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AT89C51RD2/ED2
Table 12-2.
T2MOD - Timer 2 Mode Control Register (C9h)
Reset Value = XXXX XX00b
Not bit addressable
Number
Bit
7
7
6
5
4
3
2
1
0
-
Mnemonic
T2MOD Register
DCEN
T2OE
Bit
6
-
-
-
-
-
-
-
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Timer 2 Output Enable bit
Cleared to program P1.0/T2 as clock input or I/O port.
Set to program P1.0/T2 as clock output.
Down Counter Enable bit
Cleared to disable Timer 2 as up/down counter.
Set to enable Timer 2 as up/down counter.
5
-
4
-
3
-
2
-
T2OE
1
4235K–8051–05/08
DCEN
0
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