DM54LS161AJ National Semiconductor, DM54LS161AJ Datasheet - Page 8

• Manufacturer Part Number: DM54LS161AJ
• Description: Synchronous 4-Bit Binary Counters
• Manufacturer: National Semiconductor

Parameter Measurement Information
(Continued)
Switching Time Waveforms
TL F 6551 – 7
Note A The input pulses are supplied by generators having the following characteristics PRR
1 MHz duty cycle
50% Z
50
For 161 and 163
s
s
OUT
t
10 ns t
10 ns Vary PRR to measure f
r s
f s
MAX
Note B Enable P and enable T setup times are measured at t
n
0
a
Note C For 161 and 163 V
1 5V
e
REF
8