AT89C5131A-M Atmel Corporation, AT89C5131A-M Datasheet - Page 6
AT89C5131A-M
Manufacturer Part Number
AT89C5131A-M
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT89C5130A-M.pdf
(188 pages)
2.AT89C5130A-M.pdf
(4 pages)
3.AT89C5130A-M.pdf
(34 pages)
Specifications of AT89C5131A-M
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)
2.7 to 5.5
Timers
4
Isp
UART/USB
Watchdog
Yes
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Signals
AT89C5130A/31A-M
Figure 3-3.
All the AT89C5130A/31A-M signals are detailed by functionality on Table 3-1 through Table 3-
12.
Table 3-1.
Table 3-2.
KIN[7:0)
Signal
Name
Signal
Name
ECI
Note : The metal plate can be connected to Vss
AT89C5130A/31A-M 32-pin QFN Pinout
Keypad Interface Signal Description
Programmable Counter Array Signal Description
Type
Type
I
I
Description
Keypad Input Lines
Holding one of these pins high or low for 24 oscillator periods triggers a
keypad interrupt if enabled. Held line is reported in the KBCON register.
Description
External Clock Input
P4.1/SDA
P3.0/RxD
XTAL2
XTAL1
UCAP
AVSS
PLLF
VDD
1
2
3
4
5
6
7
8
32 31 30 29 28 27 26 25
9 10 11 12 13 14 15 16
QFN32
24
23
22
21
20
19
18
17
P1.0/T2/KIN0
RST
NC
VSS
NC
P3.7/RD/LED3
P3.6/WR/LED2
P3.5/T1/LED1
4337K–USB–04/08
Alternate
Alternate
Function
Function
P1[7:0]
P1.2
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