Description
Each of these monolithic counters contains four masterslave flip-flops and additional gating to provide a divide-bytwo counter and a three-stage binary counter for which the count cycle length is divide-by-five for the ’LS90 and divideby-eight for the ’LS93
All of these counters have a gated zero re
Features
- Y Typical power dissipation 45 mW Y Count frequency 42 MHz
Connection Diagrams (Dual-In-Line Packages)
TL F 6381.
- 1
Order Number DM74LS90M or DM74LS90N See NS Package Number M14A or N14A
TL F 6381.
- 2
Order Number DM74LS93M or DM74LS93N See NS Package Number M14A or N14A
C1995 National Semiconductor Corporation TL F 6381
RRD-B30M105 Printed in U S A
Absolute Maximum Ratings (Note)
If Military Aerospace specified devices are required please contact the National Semiconduct.
7493 Datasheet
