ucn5895 Allegro MicroSystems, Inc., ucn5895 Datasheet - Page 5

• Manufacturer Part Number: ucn5895
• Description: Bimos Ii 8-bit Serial Input, Latched Source Drivers
• Manufacturer: Allegro MicroSystems, Inc.

Serial
Data
Input Input I
H
L
X
L = Low Logic Level
Clock
H
L
R
X
P
1
1
1
Shift Register Contents
I
R
R
R
X
P
2
H = High Logic Level
2
1
1
2
I
R
R
R
X
P
3
3
2
2
3
...
...
...
...
...
...
I
R
R
R
X
P
N-1
DATA OUT
N-1
N-2
N-2
N-1
STROBE
OUTPUT
ENABLE
DATA IN
CLOCK
+ 12 V
I
R
R
R
X
P
STROBE
N
DATA IN
CLOCK
N
N-1
N-1
N
X = Irrelevant
Output
Serial
Data
R
R
R
X
P
N
4
7
8
N-1
N-1
N
2
5
6
1
3
4
7
8
5
6
1
2
3
C
UCN5821A
UCN5895A
Strobe
P = Present State
Input
REGISTER
LATCHES
H
SHIFT
L
V
I
R
P
X
V
OE
1
BB
DD
1
1
9
12
16
15
13
11
10
14
9
15
13
12
11
10
16
14
9
I
R
P
X
Latch Contents
2
+ 12 V
2
2
R = Previous State
I
R
P
X
3
TO
OTHER
DIGITS
TO OTHER SEGMENTS
3
3
...
...
...
...
I
R
P
X
N-1
N-1
N-1
DATA OUT
FOR > 8 SEGMENTS
PER DIGIT
OUTPUT ENABLE
(ACTIVE LOW)
P
R
I
X
N
N
N
8-BIT SERIAL-INPUT,
LATCHED DRIVERS
Output
Enable
H
L
I
P
L
1
1
Output Contents
I
P
L
2
2
I
P
L
3
3
... I
... P
... L
5895
N-1
Dwg. No. B-1541
N-1
I
P
N
L
N