5816
4-TO-16 LINE
LATCHED DECODER/DRIVERS
UCN5816EP
The UCN5816A and UCN5816EP 4-to-16 line latched decoder/
drivers combine low-power CMOS inputs and logic with 16 highcurrent, high-voltage bipolar outputs. The CMOS inputs cause minimal
loading and are compatible with standard CMOS, PMOS, and NMOS
logic. TTL or DTL circuits may require the use of appropriate pull-up
resistors to ensure an input logic high. The logic operates over a
supply range of 5 V to 12 V. A CHIP ENABLE function can be used
with two devices for 5-to-32 line decoding applications.
5
IN D
IN C
IN B
27
26
CHIP
ENABLE
1
28
STROBE
2
ST
3
LOGIC
SUPPLY
4
OE
DIODE 0-7
COMMON
V DD
OUTPUT
ENABLE
T
C
U Y
D L
O
N
R
O
P E
D
C
E
N
U
E
N ER
I
T
N EF
O
R
C R
S
I
O
D F
—
LATCHES
K
IN A
25
DIODE 8-15
COMMON
OUT0
6
K 24
OUT1
7
23
OUT 15
OUT2
8
22
OUT 14
OUT3
9
21
OUT 13
OUT4
10
20
OUT 12
OUT 5
11
19
OUT 11
OUT 10 18
17
OUT 9
15
GROUND
OUT 8 16
14
GROUND
OUT 7 13
OUT 6 12
DECODER
Dwg. PP-030
The 16 bipolar power outputs are open-collector 60 V Darlington
drivers capable of sinking 350 mA continuously. Internal transientsuppression diodes provide protection for use with inductive loads.
For ink-jet printer applications, the A5817SEP addressable 28-line
decoder/driver is recommended.
The UCN5816A is supplied in a 28-pin dual in-line plastic package
with 0.600" (15.24 mm) row spacing. The UCN5816EP is furnished in
a 28-lead plastic chip carrier (quad pack) for minimum-area surfacemount applications. Both devices will drive 350 mA loads continuously
over the full operating temperature range.
FEATURES
ABSOLUTE MAXIMUM RATINGS
at TA = 25°C
Output Voltage, VCE . . . . . . . . . . . . . . 60 V
Logic Supply Voltage, VDD . . . . . . . . . 15 V
Input Voltage Range,
VIN . . . . . . . . . . . -0.3 V to VDD + 0.3 V
Output Current, IC . . . . . . . . . . . . . 500 mA
Package Power Dissipation,
PD . . . . . . . . . . . . . . . . . . . See Graph
Operating Temperature Range,
TA . . . . . . . . . . . . . . . -20°C to +85°C
Storage Temperature Range,
TS . . . . . . . . . . . . . . -55°C to +150°C
Caution: CMOS devices have input static
protection but are susceptible to damage when
exposed to extremely high static electrical
charges.
■
■
■
■
■
■
Addressable Data Entry
60 V Minimum Output Breakdown
CMOS, PMOS, NMOS, TTL Compatible Inputs
Low-Power CMOS Logic and Latches
Output Transient Protection
Output Enable and Strobe Functions
Always order by complete part number:
Part Number
Package
UCN5816A
28-Pin DIP
UCN5816EP
28-Lead PLCC
Data Sheet
26186.10
5816
4-TO-16 LINE LATCHED DECODER/DRIVERS
5816
4-TO-16 LINE LATCHED DECODER/DRIVERS
UCN5816A
3
ST
LOGIC
SUPPLY
4
OUTPUT
ENABLE
OE
24
IN A
DIODE 0-7
COMMON
6
K
23
DIODE 8-15
COMMON
OUT 0
7
22
OUT15
OUT 1
8
21
OUT14
OUT 2
9
20
OUT13
OUT 3
10
19
OUT 12
OUT 4 11
18
OUT11
12
17
OUT10
OUT 6 13
16
OUT 9
14
15
OUT 8
OUT 5
OUT 7
K
DECODER
2.0
1.5
1.0
/W
°C
55
5
=
INB
A
25
θJ
V DD
,R
P'
'E
IN C
IX
FF
SU
26
LATCHES
2.5
/W
°C
45
IND
ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS
STROBE
27
=
CE
GROUND
A
θJ
2
28
R
',
'A
1
CHIP
ENABLE
IX
FF
SU
GROUND
3.0
0.5
0
25
Dwg. PP-031
50
75
100
125
150
AMBIENT TEMPERATURE IN °C
Dwg. GP-028-1A
TYPICAL INPUT CIRCUITS
VDD
TYPICAL OUTPUT DRIVER
V DD
K
IN
OUT
IN
Dwg. EP-010-4A
Dwg. EP-010-3
Dwg. EP-021-4
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
W
Copyright © 1984, 1995, Allegro MicroSystems, Inc.
5816
4-TO-16 LINE LATCHED DECODER/DRIVERS
ELECTRICAL CHARACTERISTICS at TA = 25°C, VDD = 5 V (unless otherwise specified).
Characteristic
Output Leakage Current
Output Saturation Voltage
Input Voltage
Symbol
ICEX
VCE(SAT)
Supply Current
RIN
IDD(ON)
IDD(OFF)
Clamp Diode
IR
Leakage Current
Clamp Diode
Forward Voltage
VF
Min.
Units
VCE = 60 V, TA = +25°C
—
—
50
µA
IC = 100 mA
—
0.9
1.1
V
IC = 200 mA
—
1.1
1.3
V
IC = 350 mA, VDD = 7.0 V
—
1.3
1.6
V
-0.3
—
0.8
V
VDD = 12 V
10.5
—
—
V
VDD = 5.0 V
3.5
—
5.3
V
VDD = 12 V
50
200
—
kΩ
VDD = 5.0 V
100
600
—
kΩ
VDD = 12 V, Outputs Open
—
2.0
3.0
mA
VDD = 5.0 V, Outputs Open
—
1.0
1.5
mA
All Drivers OFF, All Inputs = 0 V,
OE = VDD = 5.0 V
—
—
100
µA
All Drivers OFF, All Inputs = 0 V,
OE = VDD = 12 V
—
—
200
µA
VR = 60 V, TA = +25°C
—
—
50
µA
VR = 60 V, TA = +70°C
—
—
100
µA
IF = 350 mA
—
1.5
2.0
V
VIN(0)
VIN(1)
Input Resistance
Test Conditions
Limits
Typ.
Max.
5816
4-TO-16 LINE LATCHED DECODER/DRIVERS
CLEAR
F
STROBE
A
C
OUTPUT
ENABLE
B
C
B
C
A
G
B
G
INN
D
E
E
OUTN
p/o Dwg. No. A-10,895A
TIMING CONDITIONS
(Logic Levels are VDD and Ground)
A. Minimum Data Active Time Before Strobe Enabled
(Data Set-Up Time) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 ns
B. Minimum Data Active Time After Strobe Disabled
(Data Hold Time) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 ns
C. Minimum Strobe Pulse Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 ns
D. Typical Time Between Strobe Activation and Output On to
Off Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 ns
Information present at the inputs is
transferred to the latches when the STROBE
is high. The latches will continue to accept
new data as long as the STROBE is held
high. With the STROBE in the low state, no
information can be loaded into the latches.
Depending on the four address inputs, the
4-to-16 line decoder enables one of the
16 output sink drivers. When the OUTPUT
ENABLE is high, all of the outputs are
disabled (OFF) without affecting the information stored in the latches. When the OUTPUT ENABLE is low, the outputs are controlled by the information in the latches.
When the CHIP ENABLE is low, all of the
outputs are disabled (OFF). With two decoder/drivers and an inverter, the CHIP
ENABLE function can be used for 5-to-32 line
decoding applications.
E. Typical Time Between Strobe Activation and Output Off to
On Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 ns
G. Minimum Data Pulse Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225 ns
TRUTH TABLE
STROBE
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
X
X
CHIP
ENABLE
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
X
IND
(MSB)
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
X
X
X
INC
INB
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
X
X
X
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
X
X
X
INA
(LSB)
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
X
X
X
OUTPUT
ENABLE
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
X
1
OUTPUTS
(OFF unless otherwise specified)
OUT0ON
OUT1 ON
OUT2 ON
OUT3 ON
OUT4 ON
OUT5 ON
OUT6 ON
OUT7 ON
OUT8 ON
OUT9 ON
OUT10 ON
OUT11 ON
OUT12 ON
OUT13 ON
OUT14 ON
OUT15 ON
QO
All OFF
All OFF
QO = The output condition prior to the high-to-low transition of the STROBE input.
X = Irrelevant
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000