UPD16312GB-3B4 데이터 시트보기 (PDF) - NEC => Renesas Technology

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UPD16312GB-3B4

1/4- to 1/11-DUTY FIP (VFD) CONTROLLER/DRIVER

NEC => Renesas Technology 

BLOCK DIAGRAM

DIN

DOUT

CLK

Serial I/F

STB

VDD

R

OSC

Key1

to

Key4 4

SW1

to

SW4

4

4-bit

latch

PD16312

Command decoder

Dimming circuit

Display memeory

16 bits × 11 words

Timing generator key scan

Key data memory (4 × 6)

4-bit latch

LED1

LED4

Key data memory (4 × 6)

16-bit 16

11

output

latch

5

Seg-

ment

driver

Seg1

Seg11

Data 5

selector

11-bit

shift

5

register

11

6

Grid

driver

Seg12/Grid11

Seg16/Grid7

Grid1

Grid6

VDD

VSS

VEE

(+5 V) (0 V) (−30 V)

2

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