5800AND 5801
BiMOS II
LATCHED DRIVERS
UCN5801A
CLEAR
F
STROBE
OUTPUT
ENABLE
1
2
3
4
22
21
20
19
18
17
16
CLEAR
A
C
G
B
B
C
C
A
B
OUTPUT
ENABLE
STROBE
V
SUPPLY
DD
G
IN
N
OUT
1
IN
1
E
E
D
IN
2
OUT
OUT
OUT
OUT
OUT
OUT
OUT
2
3
4
5
6
7
8
OUT
N
5
6
IN
3
Dwg. No. A-10,895A
TIMING CONDITIONS
IN
4
(Logic Levels are VDD and Ground)
7
8
IN
5
IN
6
15
A. Minimum Data Active Time Before Strobe Enabled
(Data Set-Up Time) ..........................................................50 ns
IN
7
9
14
13
12
10
IN
8
B. Minimum Data Active Time After Strobe Disabled
(Data Hold Time) .............................................................. 50 ns
11
COMMON
Dwg. PP-015
GROUND
C. Minimum Strobe Pulse Width ..................................................125 ns
D. Typical Time Between Strobe Activation and
Output On to Off Transition ............................................500 ns
E. Minimum Time Between Strobe Activation and
Output Off to On Transition ............................................500 ns
UCN5801LW
F. Minimum Clear Pulse Width ....................................................300 ns
G.Minimum Data Pulse Width .....................................................225 ns
OUTPUT
ENABLE
1
2
3
4
24
23
22
21
20
19
18
CLEAR
Information present at an input is transferred to its latch when the
STROBE is high. A high CLEAR input will set all latches to the output
OFF condition regardless of the data or STROBE input levels. A high
OUTPUT ENABLE will set all outputs to the OFF condition, regardless
of any other input conditions. When the OUTPUT ENABLE is low, the
outputs depend on the state of their respective latches.
STROBE
V
SUPPLY
DD
OUT
1
IN
1
IN
2
OUT
OUT
OUT
OUT
OUT
OUT
OUT
2
3
4
5
6
7
8
5
6
IN
3
IN
4
TRUTH TABLE
7
8
IN
5
OUT
N
OUTPUT
ENABLE
IN
6
17
IN
STROBE
CLEAR
t-1
t
N
IN
7
9
16
15
14
0
1
X
X
X
X
1
1
X
X
0
0
0
0
1
X
0
0
0
0
X
1
0
0
X
X
X
X
ON
OFF
OFF
ON
OFF
OFF
ON
10
IN
8
11
12
COMMON
GROUND
NO
NO
NC
13
NC
CONNECTION
CONNECTION
OFF
Dwg. PP-015-1
X = irrelevant.
t-1 = previous output state.
t = present output state.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
