UPD78P324(A) 查看數據表（PDF） - NEC => Renesas Technology

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UPD78P324(A)

16-/8-Bit Single-Chip Microcomputers

NEC => Renesas Technology 

µPD78P324, 78P324(A)

1.3 PIN I/O CIRCUIT AND UNUSED-PIN PROCESSING

The I/O circuits of the pins are shown in Table 1-1 and Figure 1-1 some of them in a simplified form.

Table 1-1. I/O Circuit Types of Pins and Recommended Connection Methods When Unused

Pin Name

P00/RTP0-P07/RTP7

P20/NMI

P21/INTP0-P26/INTP5

P27/INTP6/TI

P30/TXD

P31/RXD

P32/SO/SB0

P33/SI/SB1

P34/SCK

P40/AD0-P47/AD7

P50/A8-P57/A15

P70/AN0-P77/AN7

P80/TO00-P83/TO03

P84/TO10, P85/TO11

P90/RD

P91/WR

P92/TAS

P93/TMD

WDTO

ASTB

EA

RESET

AVDD

AVREF

AVSS

VPP

NC

I/O Circuit Type

Recommended Connection Method When Unused

5

Input status: Connected to VDD or VSS via a resistor individually.

Output status: No connection required.

2

Connected to VSS.

5

8

Input status: Connected to VDD or VSS via a resistor individually.

Output status: No connection required.

5

9

Connected to Vss.

5

Input status: Connected to VDD or Vss via a resistor individually.

Output status: No connection required.

5

3

No connection required.

4

1

—

2

—

—

Connected to VDD.

—

Connected to VSS.

—

Connected to VDD.

—

Connected to VSS. (It is also possible to leave this unconnected.)

14

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