at89c5131 ATMEL Corporation, at89c5131 Datasheet - Page 6

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at89c5131

Manufacturer Part Number
at89c5131
Description
8-bit Flash Microcontroller With Full Speed Usb Device At89c5131
Manufacturer
ATMEL Corporation
Datasheet

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6
AT89C5131
Figure 3. AT89C5131 48-pin MLF Pinout
Figure 4. AT89C5131 28-pin SO Pinout
P1.5/CEX2/KIN5/MISO
P1.7/CEX4/KIN7/MOSI
P1.6/CEX3/KIN6/SCK
P4.1/SDA
P2.5/A13
P2.7/A15
P2.4/A12
P2.6/A14
P3.0/RxD
P2.3/A11
XTAL2
XTAL1
AVDD
AVSS
VDD
P4.1/SDA
P3.0/RxD
P4.0/SCL
2
10
11
12
1
9
3
4
5
6
7
8
XTAL2
XTAL1
PLLF
VREF
AVSS
VDD
48
13 14
D+
D-
47
1
3
4
5
6
7
10
11
12
14
2
8
9
13
15
46 45 44 43 42
16
SO28
17
MLF 48
18
19
20
41 40 39 38 37
21
16
15
28
27
24
22
18
17
26
25
23
20
19
21
22 23
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
P3.5/T1/LED1
P3.4/T0
24
27
36
35
33
29
28
26
25
34
32
31
30
P0.2/AD2
P1.0/T2/KIN0
P0.1/AD1
RST
P0.3/AD3
P0.4/AD4
P3.7/RD/LED3
P0.5/AD5
P0.6/AD6
P0.7/AD7
P3.6/WR/LED2
VSS
4136C–USB–04/05

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