HD74HC4024 PDF даташит
Спецификация HD74HC4024 изготовлена «Hitachi Semiconductor» и имеет функцию, называемую «7-stage Binary Counter». |
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Детали детали
Номер произв | HD74HC4024 |
Описание | 7-stage Binary Counter |
Производители | Hitachi Semiconductor |
логотип |
8 Pages
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HD74HC4024
7-stage Binary Counter
Description
The HD74HC4024 is a 7-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) = 14 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
Clock
L
L
H
H
Reset
L
H
L
H
L
H
L
H
Outputs State
No change
All outputs are low
No change
All outputs are low
No change
All outputs are low
Advance to next state
All outputs are low
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HD74HC4024
Pin Arrangement
Block Diagram
Clock 1
Reset 2
Q7 3
Q6 4
Q5 5
Q4 6
GND 7
C
R
Q7
Q6
Q5
Q4
Q1
Q2
Q3
(Top view)
14 VCC
13 NC
12 Q1
11 Q2
10 NC
9 Q3
8 NC
Clock
CQ
CQ
CQ
CQ
Reset
RQ
RQ
RQ
RQ
Q1 Q2
Q6 Q7
2
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HD74HC4024
DC Characteristics
Item
Input voltage
Output voltage
Input current
Quiescent supply
current
Ta = 25°C
Ta = –40 to
+85°C
Symbol
VIH
VCC (V) Min Typ Max Min
2.0 1.5 — — 1.5
4.5 3.15 — — 3.15
Max
—
—
Unit
V
6.0 4.2 — — 4.2 —
VIL 2.0 — — 0.5 — 0.5 V
4.5 — — 1.35 — 1.35
6.0 — — 1.8 — 1.8
VOH 2.0 1.9 2.0 — 1.9 — V
4.5 4.4 4.5 — 4.4 —
6.0 5.9 6.0 — 5.9 —
4.5 4.18 — — 4.13 —
6.0 5.68 — — 5.63 —
VOL 2.0 — 0.0 0.1 — 0.1 V
4.5 — 0.0 0.1 — 0.1
6.0 — 0.0 0.1 — 0.1
4.5 — — 0.26 — 0.33
6.0 — — 0.26 — 0.33
Iin 6.0 — — ±0.1 — ±1.0 µA
ICC 6.0 — — 4.0 — 40 µA
Test Conditions
Vin = VIH or VIL IOH = –20 µA
IOH = –4 mA
IOH = –5.2 mA
Vin = VIH or VIL IOL = 20 µA
IOL = 4 mA
IOL = 5.2 mA
Vin = VCC or GND
Vin = VCC or GND, Iout = 0 µA
3
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