5821
AND
5822
BiMOS II 8-BIT SERIAL-INPUT,
LATCHED DRIVERS
A merged combination of bipolar and MOS technology gives
these devices an interface flexibility beyond the reach of standard
logic buffers and power driver arrays. The UCN5821A,
UCN5821LW, UCN5822A, and UCN5822LW each have an
eight-bit CMOS shift register and CMOS control circuitry, eight
CMOS data latches, and eight bipolar current-sinking Darlington
output drivers. The UCN5821A/LW and UCN5822A/LW are
identical except for rated output voltage.
BiMOS II devices have much higher data-input rates than the
original BiMOS circuits. With a 5 V logic supply, they will
typically operate at better than 5 MHz. With a 12 V supply,
significantly higher speeds are obtained. The CMOS inputs are
compatible with standard CMOS and NMOS logic levels. TTL
circuits may require the use of appropriate pull-up resistors. By
using the serial data output, the drivers can be cascaded for
interface applications requiring additional drive lines.
The UCN5821/22A are furnished in a standard 16-pin plastic
DIP; the UCN5821/22LW are in a 16-lead wide-body SOIC for
surface-mount applications. The UCN5821A is also available for
operation from -40擄C to +85擄C. To order, change the prefix from
鈥楿CN鈥?to 鈥楿CQ鈥?
Data Sheet
26185.12E
CLOCK
SERIAL
DATA IN
LOGIC
GROUND
LOGIC
SUPPLY
SERIAL
DATA OUT
STROBE
OUTPUT
ENABLE
POWER
GROUND
1
2
3
4
5
6
7
8
CLK
16
15
OUT
1
OUT
2
OUT
3
OUT
4
OUT
5
OUT
6
OUT
7
OUT
8
SHIFT REGISTER
14
LATCHES
V
DD
13
12
11
10
9
ST
OE
SUB
Dwg. PP-026A
Note the DIP package and the SOIC package are
electrically identical and share common terminal
number assignments.
ABSOLUTE MAXIMUM RATINGS
at 25
擄
C Free-Air Temperature
Output Voltage, V
OUT
UCN5821A & UCN5821LW .....
50 V
UCN5822A & UCN5822LW .....
80 V
Logic Supply Voltage, V
DD
.............
15 V
Input Voltage Range,
V
IN
..................
-0.3 V to V
DD
+ 0.3 V
Continuous Output Current,
I
OUT
.....................................
500 mA
Package Power Dissipation, P
D
Package Code 鈥楢鈥?..................
2.1 W
Package Code 鈥楲W鈥?...............
1.5 W
Operating Temperature Range,
T
A
............................ -20
擄
C to +85
擄
C
Storage Temperature Range,
T
S
.......................... -55
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.
FEATURES
I
To 3.3 MHz Data Input Rate
I
CMOS, NMOS, TTL Compatible
I
Internal Pull-Down Resistors
I
Low-Power CMOS Logic & Latches
I
High-Voltage Current-Sink Outputs
I
Automotive Capable
Always order by complete part number, e.g.,
UCN5821A
.
www.allegromicro.com
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