AT89C51ED2-RLTUM Atmel, AT89C51ED2-RLTUM Datasheet - Page 91

IC 8051 MCU FLASH 64K 44VQFP

AT89C51ED2-RLTUM

Manufacturer Part Number
AT89C51ED2-RLTUM
Description
IC 8051 MCU FLASH 64K 44VQFP
Manufacturer
Atmel
Series
89Cr
Datasheet

Specifications of AT89C51ED2-RLTUM

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
Cpu Family
89C
Device Core
8051
Device Core Size
8b
Frequency (max)
40MHz
Interface Type
SPI/UART
Total Internal Ram Size
2KB
# I/os (max)
34
Number Of Timers - General Purpose
3
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
44
Package Type
VQFP
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
2 KB
Maximum Clock Frequency
60 MHz
Number Of Programmable I/os
34
Number Of Timers
3
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Minimum Operating Temperature
- 40 C
Package
44VQFP
Family Name
AT89
Maximum Speed
40 MHz
For Use With
AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Compliant

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Manufacturer
Quantity
Price
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Manufacturer:
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23.3
4235K–8051–05/08
Registers
Figure 23-2. Recommended EEPROM Data Read Sequence
Table 23-1.
EECON (0D2h)
EEPROM Control Register
Bit Number
7 - 2
7
-
Mnemonic
EECON Register
6
-
Bit
-
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
5
-
Exec: MOVX A, @DPTR
EEPROM Data Mapping
EEPROM Data Mapping
EECON = 00h (EEE = 0
EEPROM Data Read
EECON = 02h (EEE=1)
Save & Disable IT
DPTR= Address
4
-
Sequence
ACC= Data
Last Byte
Cleared?
Data Read
to Read?
Restore IT
EEBusy
EA= 0
3
-
AT89C51RD2/ED2
2
-
EEE
1
EEBUSY
0
91

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