AT89C5131A-L Atmel Corporation, AT89C5131A-L Datasheet - Page 5

• Manufacturer Part Number: AT89C5131A-L
• Manufacturer: Atmel Corporation

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

4338F–USB–08/07
Figure 2. AT89C5131A-L 64-pin VQFP Pinout
Figure 3. AT89C5131A-L 28-pin SO Pinout
P3.0/RxD
P2.4/A12
P2.5/A13
P2.6/A14
P2.7/A15
P2.3/A11
XTAL2
XTAL1
AVDD
AVSS
P1.5/CEX2/KIN5/MISO
P1.7/CEX4/KIN7/MOSI
VDD
P1.6/CEX3/KIN6/SCK
NC
NC
NC
NC
NC
10
14
1
2
3
11
8
12
13
15
16
4
6
7
5
9
17 18
64
P4.1/SDA
P3.0/RxD
P4.0/SCL
63
XTAL2
XTAL1
PLLF
VREF
19
AVSS
VDD
62 61 60 59 58
D+
20
D-
21
4
10
12
14
1
2
3
5
6
7
8
9
11
13
22
23
SO28
VQFP64
24
57 56 55 54 53
25
26 27
21
16
15
28
27
24
22
18
17
26
25
23
20
19
28 29
P1.4/CEX1/KIN4
P1.3/CEX0/KIN3
P1.2/ECI/KIN2
P1.1/T2EX/KIN1/SS
P1.0/T2/KIN0
RST
P3.7/RD/LED3
P3.1/TxD
P3.3/INT1/LED0
P3.2/INT0
VSS
P3.6/WR/LED2
P3.4/T0
P3.5/T1/LED1
52
30
51 50 49
31 32
41
48
47
46
45
44
43
42
40
39
38
35
36
33
37
34
NC
NC
P0.1/AD1
P0.2/AD2
P0.3/AD3
NC
NC
RST
VSS
P3.6/WR/LED2
NC
P0.4/AD4
P0.5/AD5
P0.6/AD6
P0.7/AD7
P3.7/RD/LED3
5