dm9374 Fairchild Semiconductor, dm9374 Datasheet - Page 2

• Manufacturer Part Number: dm9374
• Description: 7-segment Decoder/driver/latch With Constant Current Sink Outputs
• Manufacturer: Fairchild Semiconductor

www.fairchildsemi.com
Truth Table
H
L
X
Note 1: The RBI will blank the display only if a binary zero is stored in the latches.
Note 2: RBO used as an input overrides all other input conditions.
LOW Voltage Level
HIGH Voltage Level
Immaterial
Binary
State
—
10
11
12
13
14
15
0
0
1
2
3
4
5
6
7
8
9
X
LE
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
X
(Note 1)
RBI
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
Inputs
A3
X
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
L
A2
X
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
L
Numerical Designations
A1
X
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
L
A0
X
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
2
a
L
L
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
b
L
L
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
c
L
L
L
L
L
L
L
L
L
L
STABLE
d
H
H
H
H
H
L
H
L
H
H
H
L
L
L
L
L
L
L
Outputs
H
H
H
H
H
H
H
H
H
H
e
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
f
H
H
H
H
H
H
H
g
L
L
L
L
L
L
L
L
L
L
L
L (Note 2)
RBO
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
Display
BLANK
BLANK
Stable
Blank
—
E
H
P
0
1
2
3
4
5
6
7
8
9
L