HT16523-002 Просмотр технического описания (PDF) - Holtek Semiconductor

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HT16523-002

5x7 Dot Character VFD Controller & Driver

Holtek Semiconductor 

Pin Assignment

64636261605958575655545352515049

S5 1

48 VH

S6 2

47 G16

S7 3

46 G15

S8 4

45 G14

S9 5

44 G13

S10 6

43 G12

S11 7

42 G11

S12 8

HT16523

41 G10

S13 9

64 LQFP-A

40 G9

S14 10

39 G8

S15 11

38 G7

S16 12

37 G6

S17 13

36 G5

S18 14

35 G4

S19 15

34 G3

S20 16

33 G2

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HT16523

Pin Description

Pin Name

I/O

Description

Power Supply Pins

VDD

— Positive power supply for logic circuits.

VH

— Power supply for VFD driver circuits.

VSS

— VSS - ground pin.

Microcontroller Interface Pins

CS

SCK

SI

RST

TEST

I

Chip select pin

When “Low”, the device is active.

I

Serial clock input

Shift clock input with data written on the SCK rising edge.

I

Serial data input.

The serial data is first shifted from LSB.

I

Initialize all the internal registers and commands.

All segments and digits are fixed at “Low” level.

I

When “Low” or open, the device is in normal mode.

When “High”, the device is in test mode.

Output Pins

S1~S35

O High-voltage segment output pins.

G1~G16

O High-voltage grid output pins.

AD1,AD2

O High-voltage additional data segment output pins.

P1,P2

O

General port output.

Static operation output - can drive LEDs

Oscillator pin

OSCI

Oscillator input pin

I Connected to an external resistor and capacitor to generate the oscillation

frequency.

Rev. 1.00

3

January 18, 2012

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