HD74LS48 Datasheet, PDF (1/7 Pages) Hitachi Semiconductor – BCD-to-Seven-Segment Decoder Driver(Internal Pull-up outputs)

HD74LS48
BCD-to-Seven-Segment Decoder / Driver (Internal Pull-up outputs)
REJ03D0411–0300
Rev.3.00
Jul.22.2005
HD74LS48 features active high outputs for driving lamp buffers. This circuit has full ripple blanking input / output
controls and a lamp test input. Display patterns for BCD input counts above 9 are unique symbols to authenticate input
conditions. This circuit incorporates automatic leading and / or trailing-edge zero-blanking control (RBI and RBO).
Lamp test (LT) of these types may be performed at any time when the BI / RBO node is at a high level. It contains an
overriding blanking input (BI) which can be used to control the lamp intensity be pulsing or to inhibit the outputs.
Inputs and outputs are entirely compatible for use with TTL or DTL logic outputs.
Features
• Ordering Information
Part Name
HD74LS48P
Package Type
DILP-16 pin
Package Code
(Previous Code)
PRDP0016AE-B
(DP-16FV)
Package
Abbreviation
P
Taping Abbreviation
(Quantity)
—
Pin Arrangement
B1
Inputs
C2
Lamp
Test
3
BI/RBO 4
RBI 5
D6
Inputs
A7
GND 8
B
f
C
g
LT
a
BI/RBO b
RBI
c
D
d
A
e
16 V_CC
15 _f
14 _g
13 _a
12 _{b Outputs}
11 _c
10 _d
9e
(Top view)
Rev.3.00, Jul.22.2005, page 1 of 6