Designed to reduce logic supply current, chip size, and system

cost, the UCN5833A/EP integrated circuits offer high-speed operation

for thermal printers. These devices can also be used to drive multi-

plexed LED displays or incandescent lamps within their 125 mA peak

output current rating. The combination of bipolar and MOS technolo-

gies gives BiMOS II smart power ICs an interface flexibility beyond the

reach of standard buffers and power driver circuits.

These 32-bit drivers have bipolar open-collector npn Darlington

outputs, a CMOS data latch for each of the drivers, a 32-bit CMOS

shift register, and CMOS control circuitry. The high-speed CMOS shift

registers and latches allow operation with most microprocessor-based

systems at data input rates above 3.3 MHz. Use of these drivers with

TTL may require input pull-up resistors to ensure an input logic high.

The UCN5833A is supplied in a 40-pin dual in-line plastic package

with 0.600" (15.24 mm) row spacing. At an ambient temperature of

+75

°C, all outputs of the DlP-packaged device will sustain 50 mA

continuously. For high-density applications, the UCN5833EP is

available. This 44-lead plastic chip carrier (quad pack) is intended

for surface-mounting on solder lands with 0.050" (1.27 mm) centers.

CMOS serial data outputs permit cascading for applications requiring

additional drive lines.

FEATURES

I To 3.3 MHz Data Input Rate

I 30 V Minimum Output Breakdown

I Darlington Current-Sink Outputs

I Low-Power CMOS Logic and Latches

BiMOS II 32-BIT SERIAL-INPUT,

LATCHED DRIVER

UCN5833EP

ABSOLUTE MAXIMUM RATINGS

at +25

°C Free-Air Temperature

Input Voltage Range,

Continuous Output Current,

(UCN5833A) . . . . . . . . . . . . . . . 3.5 W*

(UCN5833EP) . . . . . . . . . . . . . . 2.5 W*

Operating Temperature Range,

Storage Temperature Range,

* Derate linearly to 0 W at +150

°C.

Caution: CMOS devices have input static protection

but are susceptible to damage when exposed to

extremely high static electrical charges.

Always order by complete part number:

Part Number

Package

UCN5833A

40-Pin DIP

UCN5833EP

44-Lead PLCC

Dwg. No. A-13,049

7

8

9

10

11

12

13

14

15

16

17

OUT

OUT

10

12

38

39

37

36

35

34

33

32

31

30

29

SUB

5833