UPSD3233 参数 Datasheet PDF下载

uPSD3234A, uPSD3234BV, uPSD3233B, uPSD3233BV

Figure 4. TQFP80 Connections

79 P3.2/EXINT0

75 P3.0/RXD0

64 P1.7/ADC3

61 P1.6/ADC2

77 P3.1/TXD0

68 RESET_

63 PSEN_

70 VREF

69 GND

72 PB5

71 NC(2)

PD2 1

P3.3 /EXINT1 2

PD1/CLKIN 3

ALE 4

PC7 5

JTAG/TDO 6

JTAG/TDI 7

USB–(1) 8

PC4/TERR_ 9

USB+ 10

NC(2) 11

VCC 12

GND 13

PC3/TSTAT 14

PC2/VSTBY 15

JTAG TCK 16

NC(2) 17

P4.7/PWM4 18

P4.6/PWM3 19

JTAG TMS 20

62 WR_

65 RD_

80 PB0

78 PB1

76 PB2

74 PB3

73 PB4

67 PB6

66 PB7

60 P1.5/ADC1

59 P1.4/ADC0

58 P1.3/TXD1

57 A11

56 P1.2/RXD1

55 A10

54 P1.1/TX2

53 A9

52 P1.0/T2

51 A8

50 VCC

49 XTAL2

48 XTAL1

47 AD7

46 P3.7/SCL1

45 AD6

44 P3.6/SDA1

43 AD5

42 P3.5/T1

41 AD4

PA7 21

PA6 22

P4.5/PWM2 23

PA5 24

P4.4/PWM1 25

PA4 26

P4.3/PWM0 27

PA3 28

GND 29

P4.2/DDC VSYNC 30

P4.1/DDC SCL 31

PA2 32

P4.0/DDC SDA 33

PA1 34

PA0 35

AD0 36

AD1 37

AD2 38

AD3 39

P3.4/T0 40

AI07424b

Note: 1. Pull-up resistor required on pin 8 (2kΩ for 3V devices, 7.5kΩ for 5V devices) for all 82-pin devices, with or without USB function.

2. NC = Not Connected

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