Data Sheet
26185.110E
A6832
DABiC-5 32-Bit Serial Input Latched Sink Drivers
Intended originally to drive thermal printheads, the A6832 has been
optimized for low output-saturation voltage, high-speed operation,
and pin con鏗乬urations 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 the A6832 arrays an interface 鏗俥xibility
beyond the reach of standard buffers and power driver circuits.
The devices each have 32 bipolar npn open-collector saturated driv-
ers, a CMOS data latch for each of the drivers, two 16-bit CMOS shift
registers, and CMOS control circuitry. The high-speed CMOS shift reg-
isters and latches allow operation with most microprocessor-based sys-
tems. Use of these drivers with TTL may 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 (package
suf鏗亁
EP),
for surface-mount applications requiring minimum area. These
devices are lead (Pb) free, with 100% matte tin plated leadframes.
A6832SEP/A6832EEP
44-pin PLCC
44
43
42
41
7
8
9
10
11
12
13
14
15
16
17
21
22
23
24
25
26
27
18
19
20
28
40
39
38
37
36
35
34
33
32
31
30
29
6
5
4
3
2
1
FEATURES
3.3 V 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
鈥?0擄C operation available
ABSOLUTE MAXIMUM RATINGS
Output Voltage, V
OUT
.........................................40
V
Logic Supply Voltage, V
DD
...................................7
V
Input Voltage Range, V
IN
..............鈥?.3
V to V
DD
+0.3 V
Continuous Output Current, I
OUT
.................
125 mA
Package Power Dissipation, P
D
,
see
chart, page 5
Operating Temperature Range
Ambient Temperature, T
A
............鈥?0擄C
to +85擄C
Storage Temperature, T
S
..........鈥?5擄C
to +150擄C
Caution: CMOS devices have input-static protection,
but are susceptible to damage when exposed to
extremely high static-electrical charges.
APPLICATIONS
Thermal printheads
Multiplexed LED displays
Incandescent lamps
Use the following complete part numbers when ordering:
Part Number
A6832SEP-T
A6832EEP-T
Pins
44
44
Package
PLCC
PLCC
Operating Temperature
鈥?0潞C to +85潞C
鈥?0潞C to +85潞C
ALLEGRO
1
2
3
4
5
6
7
