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Teilenummer | 74HC4020 |
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Beschreibung | 14-stage binary ripple counter | |
Hersteller | NXP Semiconductors | |
Logo | ||
Gesamt 19 Seiten 74HC4020; 74HCT4020
14-stage binary ripple counter
Rev. 6 — 3 February 2016
Product data sheet
1. General description
The 74HT4020; 74HCT4020 is a 14-stage binary ripple counter with a clock input (CP), an
overriding asynchronous master reset input (MR) and 12 buffered parallel outputs (Q0,
and Q3 to Q13). The counter advances on the HIGH-to-LOW transition of CP. A HIGH on
MR clears all counter stages and forces all outputs LOW, independent of the state of CP.
Each counter stage is a static toggle flip-flop. This device features reduced input threshold
levels to allow interfacing to TTL logic levels. Inputs also include clamp diodes, this
enables the use of current limiting resistors to interface inputs to voltages in excess of
VCC.
2. Features and benefits
Wide supply voltage range from 2.0 V to 6.0 V
Input levels:
For 74HC4020: CMOS level
For 74HCT4020: TTL level
Multiple package options
Complies with JEDEC standard no. 7A
Specified from 40 C to +85 C and from 40 C to +125 C
3. Applications
Frequency dividing circuits
Time delay circuits
Control counters
4. Ordering information
Table 1. Ordering information
Type number Package
Temperature range
74HC4020D 40 C to +125 C
74HCT4020D
74HC4020DB 40 C to +125 C
74HCT4020DB
Name
SO16
SSOP16
Description
plastic small outline package; 16 leads;
body width 3.9 mm
Version
SOT109-1
plastic shrink small outline package; 16 leads; body SOT338-1
width 5.3 mm
NXP Semiconductors
74HC4020; 74HCT4020
14-stage binary ripple counter
10. Static characteristics
Table 6. Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
25 C
40 C to +85 C 40 C to +125 C Unit
Min Typ Max Min Max Min
Max
74HC4020
VIH
HIGH-level
VCC = 2.0 V
input voltage VCC = 4.5 V
1.5 1.2 -
1.5
-
1.5
-V
3.15 2.4 - 3.15
-
3.15
-V
VCC = 6.0 V
4.2 3.2 -
4.2
-
4.2
-V
VIL LOW-level VCC = 2.0 V
input voltage VCC = 4.5 V
- 0.8 0.5
-
0.5
-
0.5 V
- 2.1 1.35 -
1.35
-
1.35 V
VCC = 6.0 V
- 2.8 1.8
-
1.8
-
1.8 V
VOH HIGH-level VI = VIH or VIL
output voltage
IO = 20 A; VCC = 2.0 V 1.9 2.0
-
1.9
-
1.9
-V
IO = 20 A; VCC = 4.5 V 4.4 4.5 -
4.4
-
4.4
-V
IO = 20 A; VCC = 6.0 V 5.9 6.0 -
5.9
-
5.9
-V
IO = 4.0 mA; VCC = 4.5 V 3.98 4.32 -
3.84
-
3.7
-V
IO = 5.2 mA; VCC = 6.0 V 5.48 5.81 -
5.34
-
5.2
-V
VOL LOW-level
VI = VIH or VIL
output voltage
IO = 20 A; VCC = 2.0 V
- 0 0.1
-
0.1
-
0.1 V
IO = 20 A; VCC = 4.5 V
- 0 0.1
-
0.1
-
0.1 V
IO = 20 A; VCC = 6.0 V
- 0 0.1
-
0.1
-
0.1 V
IO = 4.0 mA; VCC = 4.5 V
- 0.15 0.26
-
0.33
-
0.4 V
IO = 5.2 mA; VCC = 6.0 V
- 0.16 0.26
-
0.33
-
0.4 V
II input leakage VI = VCC or GND;
current
VCC = 6.0 V
- - 0.1 -
1
-
1 A
ICC
supply current VI = VCC or GND; IO = 0 A;
-
- 8.0
-
80
-
160 A
VCC = 6.0 V
CI input
capacitance
- 3.5 -
-
-
-
- pF
74HCT4020
VIH
HIGH-level
VCC = 4.5 V to 5.5 V
input voltage
2.0 1.6 -
2.0
-
2.0
-V
VIL LOW-level VCC = 4.5 V to 5.5 V
input voltage
- 1.2 0.8
-
0.8
-
0.8 V
VOH HIGH-level VI = VIH or VIL; VCC = 4.5 V
output voltage
IO = 20 A
4.4 4.5 -
4.4
-
4.4
IO = 4.0 mA
3.98 4.32 - 3.84
-
3.7
VOL LOW-level
VI = VIH or VIL; VCC = 4.5 V
output voltage
IO = 20 A; VCC = 4.5 V
- 0 0.1
-
0.1
-
IO = 4.0 mA; VCC = 4.5 V
- 0.15 0.26
-
0.33
-
II input leakage VI = VCC or GND;
current
VCC = 5.5 V
- - 0.1 - 1 -
-V
-V
0.1 V
0.4 V
1 A
74HC_HCT4020
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 3 February 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
6 of 19
6 Page NXP Semiconductors
74HC4020; 74HCT4020
14-stage binary ripple counter
13. Package outline
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Fig 11. Package outline SOT109-1 (SO16)
74HC_HCT4020
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 3 February 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
12 of 19
12 Page | ||
Seiten | Gesamt 19 Seiten | |
PDF Download | [ 74HC4020 Schematic.PDF ] |
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