Description
Each of these monolithic counters contains four master-slave flip-flops and additional gating to provide a divide-by-two counter and a three-stage binary counter for which the count cycle length is divide-by-five for the 90A and divide-by-eight for the 93A.
Features
- n Typical power dissipation.
- 90A 145 mW.
- 93A 130 mW
n Count frequency 42 MHz
Connection Diagrams
Dual-In-Line Package
Dual-In-Line Package
DS006533-1
Order Number DM5490J, DM5490W or DM7490AN
See Package Number J14A, N14A or W14B
DS006533-2
Order Number DM7493AN See Package Number N14A
© 1998 Fairchild Semiconductor Corporation DS006533
www. fairchildsemi. com
Absolute Maximum Ratings (Note 1)
Supply Voltage Input Voltage Operating Free Air Temperature Range
7V 5.5V
DM.
7493 Datasheet
