AT89C51ED2-RLTUM Atmel, AT89C51ED2-RLTUM Datasheet - Page 82

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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Company
Part Number
Manufacturer
Quantity
Price
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AT89C51ED2-RLTUM
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ATMEL
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13 400
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Manufacturer:
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Quantity:
10 000
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Part Number:
AT89C51ED2-RLTUM
Manufacturer:
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Quantity:
20 000
82
AT89C51RD2/ED2
Note:
Note:
Table 18-1.
Reset
Idle (internal
code)
Idle (external
code)
Power-Down
(internal
code)
Power-Down
(external
code)
3. Generate an enabled external Keyboard interrupt (same behavior as external interrupt).
Mode
continue for a number of clock cycles before the internal reset algorithm takes
control. Reset initializes the AT89C51RD2/ED2 and vectors the CPU to address
0000h.
During the time that execution resumes, the internal RAM cannot be accessed; however, it is pos-
sible for the Port pins to be accessed. To avoid unexpected outputs at the Port pins, the instruction
immediately following the instruction that activated the Power-Down mode should not write to a
Port pin or to the external RAM.
Exit from power-down by reset redefines all the
content.
Pin Conditions in Special Operating Modes
Floating
Floating
Floating
Port 0
Data
Data
Port 1
High
Data
Data
Data
Data
Port 2
High
Data
Data
Data
Data
SFRs
Port 3
High
Data
Data
Data
Data
, but does not affect the internal RAM
Port 4
High
Data
Data
Data
Data
High
High
High
ALE
Low
Low
4235K–8051–05/08
PSEN#
High
High
High
Low
Low

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