Circuitos Integrados

74393
Dual 4-bit binary ripple counter
PDF datasheet
       
1CP 1  • 14 Vcc
1MR 2 13 2CP
1Q0 3 12 2MR
1Q1 4 11 2Q0
1Q2 5 10 2Q1
1Q3 6 9 2Q2
GND 7 8 2Q3
       
Pin Symbol Description
1 1CP clock input (high-to-low, edge-triggered)
2 1MR asynchronous master reset (active high)
3 1Q0 flip-flop output
4 1Q1 flip-flop output
5 1Q2 flip-flop output
6 1Q3 flip-flop output
7 GND ground
8 2Q3 flip-flop output
9 2Q2 flip-flop output
10 2Q1 flip-flop output
11 2Q0 flip-flop output
12 2MR asynchronous master reset (active high)
13 2CP clock input (high-to-low, edge-triggered)
14 Vcc supply voltage


Specifications
(typical values under recommended operating conditions, unless specified)
Parameter Value Unit
Propagation delay, nCP to nQ0 12 (74HC)
20 (74HCT)
ns
Propagation delay, nQx to nQ(x+1) 5 (74HC)
6 (74HCT)
ns
Propagation delay, nMR to nQx 11 (74HC)
15 (74HCT)
ns
Maximum clock frequency 99 (74HC)
53 (74HCT)
MHz

Note
Data is maintained by an independent source and accuracy is not guaranteed. Check with the manufacturer's datasheet for up-to-date information.

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