AD6311

1/8- to 1/16 Duty VFD Controller/Driver

This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of

this product. No rights under any patent accompany the sale of the product.

Rev. A5 Dec 29, 2003

1/11

Features

- 4-pin serial interface

- Key scanning (12x4 matrices)

- Programming display modes (16-digit & 12-

segment to 8-digit & 20-segment)

- Programming dimming step

- 5 channels LED ports

- 4-pin general-purpose input port

- Built-in oscillator

- No external resistor necessary for driver outputs

General Description

The AD6311 is a VFD (Vacuum Fluorescent

Display) controller/driver that is driven on a 1/8- to

1/16 duty factor (include key scan). It consists of 12

segment/key scan output lines, 8 grid output lines,

8 segment/grid output drive lines, a display memory,

a control circuit, and a key scan circuit. Serial data

is input to the AD6311 through a four-line serial

interface.

Pin Assignments

VSS

OSC

42

43

44

45

46

47

48

49

50

51

52

24

23

22

21

20

19

18

17

16

15

14

26

25

40

41

Use all the power pins.