AT89C5131A-L

Manufacturer Part NumberAT89C5131A-L
ManufacturerAtmel Corporation
AT89C5131A-L datasheets
 


Specifications of AT89C5131A-L

Flash (kbytes)32 KbytesMax. Operating Frequency48 MHz
Cpu8051-12CMax I/o Pins34
Usb Transceiver1Usb SpeedFull Speed
Usb InterfaceDeviceSpi1
Twi (i2c)1Uart1
Sram (kbytes)1.25Eeprom (bytes)1024
Self Program MemoryAPIOperating Voltage (vcc)3.0 to 3.6
Timers4IspUART/USB
WatchdogYes  
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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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