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 3. High-pin Count Regular Boot Process
E N B O O T = 0
S ta rt A p p lica tio n
AT89C5131A USB Bootloader
8
R E S E T
H ardw are
C ondition
N o
Y es
P C = 0000h
B LJ B = 1
N o
F C O N = 00h
N o
S B V < 7F h
Y es
S ta rt U se r B o o tlo a d e r
B it E N B O O T in A U XR 1 R egis ter is
Initialized with B LJ B inverted
E N B O O T = 1
P C = F 400h
F C O N = 00h
Y es
E N B O O T = 1
P C = F 400h
F C O N = 0F h
Y es
N o
S ta rt B o o tlo a d e r
4287E–USB–04/08