UCN5816EP ALLEGRO [Allegro MicroSystems], UCN5816EP Datasheet - Page 4

• Manufacturer Part Number: UCN5816EP
• Description: 4-TO-16 LINE LATCHED DECODER/DRIVERS
• Manufacturer: ALLEGRO [Allegro MicroSystems]

A. Minimum Data Active Time Before Strobe Enabled
B. Minimum Data Active Time After Strobe Disabled
C. Minimum Strobe Pulse Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 ns
D. Typical Time Between Strobe Activation and Output On to
E. Typical Time Between Strobe Activation and Output Off to
G. Minimum Data Pulse Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225 ns
Q
X = Irrelevant
O
= The output condition prior to the high-to-low transition of the STROBE input.
STROBE
5816
4-TO-16 LINE LATCHED DECODER/DRIVERS
X
X
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
(Data Set-Up Time) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 ns
(Data Hold Time) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 ns
Off Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 ns
On Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 ns
OUTPUT
ENABLE
STROBE
OUT N
CLEAR
IN N
ENABLE
(Logic Levels are V
CHIP
A
D
X
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
TIMING CONDITIONS
C
G
B
E
C
(MSB)
IN
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
X
X
X
B
D
DD
and Ground)
IN
X
X
X
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
C
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
TRUTH TABLE
F
A
IN
X
X
X
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
E
p/o Dwg. No. A-10,895A
B
C
G
B
(LSB)
IN
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
A
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 informa-
tion stored in the latches. When the OUT-
PUT ENABLE is low, the outputs are con-
trolled by the information in the latches.
When the CHIP ENABLE is low, all of the
outputs are disabled (OFF). With two de-
coder/drivers and an inverter, the CHIP
ENABLE function can be used for 5-to-32 line
decoding applications.
OUTPUT
ENABLE
Information present at the inputs is
X
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
(OFF unless otherwise specified)
OUTPUTS
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
All OFF
All OFF
Q
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
0
O
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON