UPD75P316B datasheet(7/42 Pages) NEC

7 / 42 page

µPD75P316A

Input

output

Input/output

Input

Input/output

Input

Input/output

—

TI0

PTO0

PCL

BUZ

SCK

SO/SB0

SI/SB1

INT4

INT0

INT1

INT2

KR0 to KR3

KR4 to KR7

X1, X2

XT1, XT2

RESET

MD0 to MD3

VPP

VDD

VSS

1.2

OTHER PINS

—

Input

—

Input

—

Input

—

External event pulse input pin for timer/event counter.

Timer/event counter output pin

Clock output pin

Fixed frequency output pin (for buzzer or system clock

trimming)

Serial clock input/output pin

Serial data output pin

Serial bus input/output pin

Serial data input pin

Serial bus input/output pin

Edge-detected vectored interrupt input pin (rising or falling

edge detection).

Edge-detected vectored interrupt input pin (detection edge

selectable)

Edge-detected testable input pin (rising edge detection)

Testable Input/output pins (parallel falling edge detection)

Main system clock oscillation crystal/ceramic connection

pins. When an external clock is used, the clock is input to

X1 and the inverted clock to X2.

Subsystem clock oscillation crystal connection pins

When an external clock is used, the clock is input to XT1 and

the inverted clock to XT2. XT1 can be used as a 1-bit input

(test) pin.

System reset input pin (low-level active).

Mode selection pin for program memory (PROM) write/

verify.

Program voltage application pin for program memory (PROM)

write/verify . Connected to V

DD in normal operation. Applies

+12.5 V in program memory write/verify.

Positive power supply pin

GND potential pin

Dual-

Function Pin

P13

P20

P22

P23

P01

P02

P03

P00

P10

P11

P12

P60 to P63

P70 to P73

—

P30 to P33

—

Pin Name

Input/Output

Function

After Reset

I/O Circuit

Type *1

B - C

E - B

F - A

F - B

M - C

B - C

F - A

—

E - B

—

S0 to S23

S24 to S31

COM0 to COM3

VLC0 to VLC2

BIAS

LCDCL*2

SYNC*2

Output

—

Input/output

—

BP0 to 7

—

P30

P31

Segment signal output pins

Common signal output pins

LCD drive power supply pins

External split cutting output pin

External extension driver drive clock output pin

External extension driver synchronization clock output pin

—

High impedance

Input

G - A

G - C

G - B

—

E - B

UPD75P316B Datasheet(PDF) 7 Page - NEC

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