STV7710WP データシートの表示（PDF） - STMicroelectronics

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STV7710WP

Vaccum fluorescent display (VFD) driver

STMicroelectronics 

Circuit description

4

Circuit description

STV7710

4.1

Pin description

Table 5. STV7710 pin description

Symbol

Function

Description

OUT(01-96)

Output

Power output

VSSP

Ground

Ground of power outputs

VPP

Supply

High voltage supply of power outputs

BLK

POC

Input

Input

Blanking input

Power output control input

F/R

Input

Selection of shift direction

VCC

Supply

5V logic supply

VSSLOG

VSSSUB

Ground

Ground

Logic ground

Substrate ground

CLK

Input

Clock of data shift register

STB

Input

Latch of data to outputs

DATA_A

Input/output

Shift register input

DATA_B

TEST

Input/output

Input

Shift register output

Test input pin

4.2

Data bus configuration

Table 6. STV7710 data bus configuration

F/R Input

Data shift

Output

CLK 01 02 03 04 05 06 ... 91 92 93 94 95 96

H DATA_A Output 01 02 03 04 05 06

91

92

93

94

95

96

DATA_B

Forward

shift

L DATA_B Output 96 95 94 93 92 91

06

05

04

03

02

01

DATA_A

Reverse

shift

This table describes the position of the first data sampled by the first rising edge of the CLK

signal.

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