AT89C51AC3-RLTIM Atmel, AT89C51AC3-RLTIM Datasheet - Page 36
AT89C51AC3-RLTIM
Manufacturer Part Number
AT89C51AC3-RLTIM
Description
IC 8051 MCU FLASH 64K 44VQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C51AC3-RLTUM.pdf
(140 pages)
Specifications of AT89C51AC3-RLTIM
Core Processor
8051
Core Size
8-Bit
Speed
60MHz
Connectivity
UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
36
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Examples
36
AT89C51AC3
;*F*************************************************************************;* NAME: api_rd_eeprom_byte
;* DPTR contain address to read.
;* Acc contain the reading value
;* NOTE: before execute this function, be sure the EEPROM is not BUSY
;***************************************************************************
api_rd_eeprom_byte:
ret
;*F*************************************************************************
;* NAME: api_ld_eeprom_cl
;* DPTR contain address to load
;* Acc contain value to load
;* NOTE: in this example we load only 1 byte, but it is possible upto
;* 128 Bytes.
;* before execute this function, be sure the EEPROM is not BUSY
;***************************************************************************
api_ld_eeprom_cl:
ret
;*F*************************************************************************
;* NAME: api_wr_eeprom
;* NOTE: before execute this function, be sure the EEPROM is not BUSY
;***************************************************************************
api_wr_eeprom:
ret
MOV EECON, #02h; map EEPROM in XRAM space
MOVX A, @DPTR
MOV EECON, #00h; unmap EEPROM
MOV EECON, #02h ; map EEPROM in XRAM space
MOVX @DPTR, A
MOVEECON, #00h; unmap EEPROM
MOV EECON, #050h
MOV EECON, #0A0h
4383D–8051–02/08
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