UPD780021A datasheet(9/90 Pages) NEC

Part #	UPD780021A

Description	8-BIT SINGLE-CHIP MICROCONTROLLERS

Download	90 Pages

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Manufacturer	NEC [NEC]

Direct Link	http://www.nec.com/

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µPD78F0034B, 78F0034BY, 78F0034B(A), 78F0034BY(A)

9

Data Sheet U16369EJ1V0DS

1. PIN CONFIGURATION (TOP VIEW)

•

64-pin plastic LQFP (10 x 10)

•

64-pin plastic TQFP (12 x 12)

•

64-pin plastic LQFP (14 x 14)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

P50/A8

P51/A9

P52/A10

P53/A11

P54/A12

P55/A13

P56/A14

P57/A15

VSS0

VDD0

P30

P31

P32/SDA0Note 1

P33/SCL0Note 1

P34/SI31Note 2

P35/SO31Note 2

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

P71/TI01

P70/TI00/TO0

P03/INTP3/ADTRG

P02/INTP2

P01/INTP1

P00/INTP0

VSS1

X1

X2

VPP

XT1

XT2

RESET

AVDD

AVREF

P10/ANI0

17 18 19 20 21 22

23

24 25

26 27 28 29 30

31 32

64 63 62 61 60 59

58

57 56

55 54 53 52 51

50 49

Notes 1.

SDA0 and SCL0 are incorporated only in the

µPD78F0034BY, 78F0034BY(A) Subseries.

2.

SI31, SO31, and SCK31 are incorporated only in the

µPD78F0034B, 78F0034B(A) Subseries.

Cautions 1. Connect the VPP pin directly to VSS0 or VSS1 in normal operation mode.

2. Connect the AVSS pin to VSS0.

Remark

When the

µPD78F0034B, 78F0034BY, 78F0034B(A), and 78F0034BY(A) are used in application fields

that require reduction of the noise generated from inside the microcontroller, the implementation of noise

reduction measures, such as supplying voltage to VDD0 and VDD1 individually and connecting VSS0 and

VSS1 to different ground lines, is recommended.

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