AT89C51ED2-RLRUM Atmel, AT89C51ED2-RLRUM Datasheet - Page 107
![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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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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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