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74HC161D,653

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21
74HC161 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2017. All rights reserved.
Product data sheet Rev. 3 — 4 January 2017 12 of 20
NXP Semiconductors
74HC161
Presettable synchronous 4-bit binary counter; asynchronous reset
The shaded areas indicate when the input is permitted to change for predictable output performance.
Measurement points are given in Table 8
.
Fig 12. The data input (Dn) and parallel enable input (PE) set-up and hold times
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The shaded areas indicate when the input is permitted to change for predictable output performance.
Measurement points are given in Table 8
.
Fig 13. The count enable input (CEP) and count enable carry input (CET) set-up and hold times
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Table 8. Measurement points
Input Output
V
M
V
I
V
M
0.5 V
CC
GND to V
CC
0.5 V
CC
74HC161 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2017. All rights reserved.
Product data sheet Rev. 3 — 4 January 2017 13 of 20
NXP Semiconductors
74HC161
Presettable synchronous 4-bit binary counter; asynchronous reset
Test data is given in Table 9.
Test circuit definitions:
R
T
= Termination resistance should be equal to output impedance Z
o
of the pulse generator
C
L
= Load capacitance including jig and probe capacitance
R
L
= Load resistance.
S1 = Test selection switch
Fig 14. Test circuit for measuring switching times
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Table 9. Test data
Input Load S1 position
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I
t
r
, t
f
C
L
R
L
t
PHL
, t
PLH
V
CC
6 ns 15 pF, 50 pF 1 k open
74HC161 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2017. All rights reserved.
Product data sheet Rev. 3 — 4 January 2017 14 of 20
NXP Semiconductors
74HC161
Presettable synchronous 4-bit binary counter; asynchronous reset
12. Package outline
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P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21

74HC161D,653

Mfr. #:
Buy 74HC161D,653
Manufacturer:
Nexperia
Description:
Counter ICs SYNC 4-BIT BINARY COUNTER
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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