AT89C51AC2 Atmel Corporation, AT89C51AC2 Datasheet - Page 7

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AT89C51AC2

Manufacturer Part Number
AT89C51AC2
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of AT89C51AC2

Flash (kbytes)
32 Kbytes
Max. Operating Frequency
40 MHz
Cpu
8051-12C
Max I/o Pins
34
Uart
1
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
62.5
Sram (kbytes)
1.25
Eeprom (bytes)
2048
Self Program Memory
API
Operating Voltage (vcc)
3.0 to 5.5
Timers
4
Isp
UART
Watchdog
Yes

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Figure 3. Regular Boot Process
4231D–CAN–03/08
Start Application
ENBOOT = 0
PC = 0000h
Yes
Start User Bootloader
FCON = 00h
A/T89C51AC2 UART Bootloader
SBV < F8h
Yes
Hardware
Condition
BLJB = 1
RESET
No
No
No
No
Yes
ENBOOT = 1
FCON = 0Fh
PC = F800h
Yes
Bit ENBOOT in AUXR1 Register is
Initialized with BLJB Inverted
ENBOOT = 1
FCON = 00h
PC = F800h
Start Bootloader
7

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