5881
BiMOS II DUAL
8-BIT LATCHED DRIVER
5881
BiMOS II DUAL 8-BIT LATCHED
DRIVER WITH READ BACK
With 16 CMOS data latches (two sets of eight), CMOS control
circuitry for each set of latches, and a bipolar saturated driver for each
latch, the UCN5881EP provides low-power interface with maximum
flexibility. The driver includes thermal shutdown circuitry to protect
against damage from high junction temperatures and clamp diodes
for inductive load transient suppression.
The CMOS inputs cause minimal circuit loading and are compat-
ible with standard CMOS, PMOS, and NMOS circuits. TTL or DTL
circuits may require the use of appropriate pull up resistors. When
reading back, each data input will sink 8 mA (if its corresponding latch
is low) or source 400
碌A(chǔ)
(if its corresponding latch is high). The read
back feature is for error checking. It allows the system to verify that
data has been received and latched.
The bipolar outputs are suitable for use with low-power relays,
solenoids, and stepping motors. The very-low output saturation
voltage makes this device well-suited for driving LED arrays. The
output transistors are capable of sinking 50 mA and will maintain at
least 20 V in the OFF state. Outputs may be paralleled for higher
current capability.
Data Sheet
26180.16
ABSOLUTE MAXIMUM RATINGS
Output Voltage, V
OUT
. . . . . . . . . . . . . .
20 V
Output Sustaining Voltage, V
CE(sus)
. . .
15 V
Output Current, I
OUT
. . . . . . . . . . . .
50 mA
Input Voltage Range,
V
IN
. . . . . . . . . . .
-0.3 V to V
DD
+ 0.3 V
Logic Supply Voltage, V
DD
. . . . . . . . . .
15 V
Package Power Dissipation,
P
D
. . . . . . . . . . . . . . . . . . .
See Graph
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.
T
C
U Y
D L
O N
R O
P E
D C
E N
U E
N ER
I
T F
N E
O R
C R
S O
I
D F
鈥?/div>
Dwg. No. A-14,225
The UCN5881EP dual 8-bit latched sink driver is rated for opera-
tion over the temperature range of -20擄C to +85擄C and is supplied in a
plastic 44-lead chip carrier conforming to the JEDEC MS-007AB
outline.
FEATURES
s
s
s
s
s
s
4.4 MHz Minimum Data-Input Rate
Low-Power CMOS Logic
20 V, 50 mA (Max.) Outputs
Transient-Protected Outputs
Thermal Shutdown Protection
Low-Profile Leaded Chip Carrier
Always order by complete part number:
UCN5881EP .
1
2
3
4
