AT89C5131A-L View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT89C5131A-L

8-bit Flash Microcontroller with Full Speed USB Device

Atmel Corporation 

Figure 2. AT89C5131A-L 64-pin VQFP Pinout

AT89C5131A-L

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

NC 1

P2.3/A11 2

P2.4/A12 3

P2.5/A13 4

XTAL2 5

XTAL1 6

P2.6/A14 7

P2.7/A15 8

VDD 9

AVDD 10

NC 11

AVSS 12

NC 13

P3.0/RxD 14

NC 15

NC 16

VQFP64

48 NC

47 NC

46 P0.1/AD1

45 P0.2/AD2

44 RST

43 P0.3/AD3

42 VSS

41 NC

40 P0.4/AD4

39 P3.7/RD/LED3

38 P0.5/AD5

37 P0.6/AD6

36 P0.7/AD7

35 P3.6/WR/LED2

34 NC

33 NC

17 18 19 20 21 22 23 24 25 26 27 28 29 30 3132

Figure 3. AT89C5131A-L 28-pin SO Pinout

P1.5/CEX2/KIN5/MISO 1

P1.6/CEX3/KIN6/SCK 2

P1.7/CEX4/KIN7/MOSI 3

P4.0/SCL 4

P4.1/SDA 5

XTAL2 6

XTAL1 7

VDD 8

AVSS 9

P3.0/RxD 10

PLLF 11

D- 12

D+ 13

VREF 14

SO28

28 P1.4/CEX1/KIN4

27 P1.3/CEX0/KIN3

26 P1.2/ECI/KIN2

25 P1.1/T2EX/KIN1/SS

24 P1.0/T2/KIN0

23 RST

22 VSS

21 P3.7/RD/LED3

20 P3.6/WR/LED2

19 P3.5/T1/LED1

18 P3.4/T0

17 P3.3/INT1/LED0

16 P3.2/INT0

15 P3.1/TxD

5

4338E–USB–06/06

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