AT89C51ED2-RLTUM Atmel, AT89C51ED2-RLTUM Datasheet - Page 107

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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24.9.5.1
24.9.6
Figure 24-10. Blank Check Flow
4235K–8051–05/08
COMMAND FINISHED
Blank Check Command Description
Wait Address not
Example
Send Blank Check Command
Erased
Programming Data (write 55h at address 0010h in the Flash)
Programming Atmel function (write SSB to level 2)
Writing Frame (write BSB to 55h)
HOST
BOOTLOADER
HOST
BOOTLOADER
HOST
BOOTLOADER
OR
Host
OR
COMMAND ABORTED
Wait Checksum Error
COMMAND FINISHED
Wait COMMAND_OK
: 01 0010 00 55 9A
: 01 0010 00 55 9A . CR LF
: 02 0000 03 05 01 F5
: 02 0000 03 05 01 F5. CR LF
: 03 0000 03 06 00 55 9F
: 03 0000 03 06 00 55 9F . CR LF
Blank Check Command
address & CR & LF
’X’ & CR & LF
’.’ & CR & LF
Send COMMAND_OK
Send Checksum Error
Wait Blank Check Command
Bootloader
AT89C51RD2/ED2
Send First Address
not Erased
Checksum Error
Flash Blank
107

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