▪ Thermal printheads

▪ Multiplexed LED displays

▪ Incandescent lamps

12

13

14

15

16

17

10

11

9

8

7

35

34

33

32

31

36

37

38

39

29

30

Description

Intended originally to drive thermal printheads, the A6832 has

been optimized for low output-saturation voltage, high-speed

operation, and pin configurations that are the most convenient

for the tight space requirements of high-resolution printheads.

These integrated circuits can also be used to drive multiplexed

LED displays or incandescent lamps at up to 125 mA peak

current. The combination of bipolar and MOS technologies

gives theA6832 arrays an interface flexibility beyond the reach

of standard buffers and power driver circuits.

The devices each have 32 bipolar NPN open-collector saturated

drivers, a CMOS data latch for each of the drivers, two 16-bit

CMOS shift registers, and CMOS control circuitry. The high-

speed CMOS shift registers and latches allow operation with

most microprocessor-based systems. Use of these drivers with

TTLmay require input pull-up resistors to ensure an input logic

high. MOS serial data outputs permit cascading for interface

applications requiring additional drive lines.

The A6832 is supplied in a 44-lead plastic leaded chip carrier,

for surface-mount applications requiring minimum area. These

devices are lead (Pb) free, with 100% matte tin plated

leadframes.

26185.110G

Features and Benefits

▪ 3.3 to 5 V logic supply range

▪ To 10 MHz data input rate

▪ Schmitt trigger inputs for improved noise immunity

▪ Low-power CMOS logic and latches

▪ 40 V current sink outputs

▪ Low saturation voltage

▪ –40°C operation available

DABiC-5 32-Bit Serial Input Latched Sink Drivers

Package: 44-pin PLCC (suffix EP)

Applications:

Functional Block Diagram

Not to scale

A6832

32-B IT S HIF T R E G IS T E R

LAT C HE S

CLOC K

SER IAL

DATA IN

ST R OB E

OUT P UT

ENAB LE

V

DD

SER IAL DATA

OUT

MOS

BIP OLAR

OUT

OUT

OUT

OUT

OUT

OUT

1

2

3

30

31

32

GR OUND