AT89C5131A-L Atmel Corporation, AT89C5131A-L Datasheet - Page 20
AT89C5131A-L
Manufacturer Part Number
AT89C5131A-L
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT89C5130A-M.pdf
(34 pages)
2.AT89C5131A-L.pdf
(4 pages)
3.AT89C5131A-L.pdf
(186 pages)
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
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AT89C5131A-L
The Special Function Registers (SFRs) of the AT89C5131 fall into the following
categories:
Table 19. C51 Core SFRs
Table 20. I/O Port SFRs
Mnemonic
Mnemonic
PSW
ACC
DPH
DPL
SP
P0
P1
P2
P3
P4
B
Add
Add
E0h
D0h
A0h
B0h
C0h
F0h
81h
82h
83h
80h
90h
Name
Accumulator
B Register
Program Status
Word
Stack Pointer
LSB of SPX
Data Pointer
Low byte
LSB of DPTR
Data Pointer
High byte
MSB of DPTR
Name
Port 0
Port 1
Port 2
Port 3
Port 4 (2bits)
7
7
6
6
5
5
4
4
3
3
2
2
4338F–USB–08/07
1
1
0
0
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