AT89C5131A-L Atmel Corporation, AT89C5131A-L Datasheet - Page 9

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AT89C5131A-L

Manufacturer Part Number
AT89C5131A-L
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of AT89C5131A-L

Flash (kbytes)
32 Kbytes
Max. Operating Frequency
48 MHz
Cpu
8051-12C
Max I/o Pins
34
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
1
Uart
1
Sram (kbytes)
1.25
Eeprom (bytes)
1024
Self Program Memory
API
Operating Voltage (vcc)
3.0 to 3.6
Timers
4
Isp
UART/USB
Watchdog
Yes
Figure 4. Low-pin Count Regular Boot Process
Yes
Start Application
4287E–USB–04/08
AT89C5131A USB Bootloader
RESET
ENBOOT = 0
Yes
PC = 0000h
BLJB = 1
No
P1_CF = FFh
No
P1_CF = P1
Yes
No
P3_CF = P3
BSB = 0
No
No
SBV < 7Fh
Yes
Start User Bootloader
Bit ENBOOT in AUXR1 Register is
Initialized with BLJB Inverted
ENBOOT = 1
PC = F400h
No
Yes
No
Yes
P3_CF = FFh
No
P4_CF = FFh
Yes
No
P4_CF = P4
Yes
Start Bootloader
Yes
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