
TL/F/9603
9
June 1989
93L10/93L16
BCD Decade Counter/4-Bit Binary Counter
General Description
The 93L10 is a high speed synchronous BCD decade coun-
ter and the 93L16 is a high speed synchronous 4-bit binary
counter. They are synchronously presettable, multifunction-
al MSI building blocks useful in a large number of counting,
digital integration and conversion applications. Several
states of synchronous operation are obtainable with no ex-
ternal gating packages required through an internal carry
lookahead counting technique.
Features
Y
Synchronous counting and parallel entry
Y
Decoded terminal count
Y
Built-in Carry Circuitry
Y
Easy interfacing with DTL, LPDTL, and TTL families
Connection Diagram
Dual-In-Line Package
TL/F/9603–1
Order Number 93L10DMQB, 93L10FMQB,
93L16DMQB or 93L16FMQB
See NS Package Number J16A or W16A
Logic Symbol
TL/F/9603–2
V
CC
e
Pin 16
GND
e
Pin 8
Pin Names
Description
CEP
CET
CP
MR
Count Enable Parallel Input
Count Enable Trickle Input
Clock Pulse Input (Active Rising Edge)
Asynchronous Master
Reset Input (Active LOW)
Parallel Data Inputs
Parallel Enable Input (Active LOW)
Flip-Flop Outputs
Terminal Count Output
P0–P3
PE
Q0–Q3
TC
C
1995 National Semiconductor Corporation
RRD-B30M105/Printed in U. S. A.