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HD74HC4040

Hitachi Semiconductor
Part Number HD74HC4040
Manufacturer Hitachi Semiconductor
Description 12-stage Binary Counter
Published Mar 23, 2005
Detailed Description HD74HC4040 12-stage Binary Counter Description The HD74HC4040 is a 12-stage counter. This device is incremented on the ...
Datasheet PDF File HD74HC4040 PDF File

HD74HC4040
HD74HC4040


Overview
HD74HC4040 12-stage Binary Counter Description The HD74HC4040 is a 12-stage counter.
This device is incremented on the falling edge (negative transition) of the input clock, and all its output is reset to a low level by applying a logical high on its reset input.
Features • • • • • High Speed Operation: tpd (Clock to Q1) = 15 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table C Reset L L X X: Irrelevant H Outputs State No change Advance to next stage All outputs are low HD74HC4040 Pin Arrangement Q12 Q6 Q5 Q7 Q4 Q3 Q2 GND 1 2 3 4 5 6 7 8 (Top view) Q6 Q5 Q7 Q4 Q3 Q2 Q12 Q11 Q10 Q8 Q9 Reset Clock 16 VCC 15 Q11 14 Q10 13 Q8 12 Q9 11 R 10 C 9 Q1 Q1 Block Diagram Q1 Clock C Q C Q R Reset C Q C Q R Q2 C Q C Q R Q3 C Q C Q R Q10 C Q C Q R Q11 C Q C R Q12 2 HD74HC4040 Timing Diagram Clock Reset Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 1 2 4 8 16 32 64 128 256 512 1,024 2,048 4,096 3 HD74HC4040 DC Characteristics Ta = 25°C Item Input voltage Symbol VIH Ta = –40 to +85°C Max — — — 0.
5 1.
35 1.
8 — — — — — 0.
1 0.
1 0.
1 0.
33 0.
33 ±1.
0 40 µA µA I OL = 4 mA I OL = 5.
2 mA Vin = VCC or GND Vin = VCC or GND, Iout = 0 µA V I OH = –4 mA I OH = –5.
2 mA Vin = VIH or VIL I OL = 20 µA V Vin = VIH or VIL I OH = –20 µA V Unit V Test Conditions VCC (V) Min Typ Max Min 2.
0 4.
5 6.
0 1.
5 — 3.
15 — 4.
2 — — — — — — — — — — 0.
5 1.
5 3.
15 4.
2 — VIL 2.
0 4.
5 6.
0 1.
35 — 1.
8 — 1.
9 4.
4 5.
9 4.
13 5.
63 — — — Output voltage VOH 2.
0 4.
5 6.
0 4.
5 6.
0 1.
9 2.
0 — 4.
4 4.
5 — 5.
9 6.
0 — 4.
18 — 5.
68 — — — — — — — — — — VOL 2.
0 4.
5 6.
0 4.
5 6.
0 0.
0 0.
1 0.
0 0.
1 0.
0 0.
1 — — — — 0.
26 — 0.
26 — ±0.
1 — 4.
0 — Input current Quiescent supply current Iin I CC 6.
0 6.
0 4 HD74HC4040 AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns) Ta = 25°C Item Maximum clock frequency Symbol f max Ta = –40 to +85°C Max 4 20 24 220 44 37 220 44 37 250 50 43 125 ...


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