74VHC161 Fairchild Semiconductor, 74VHC161 Datasheet

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74VHC161

Manufacturer Part Number
74VHC161
Description
4-Bit Binary Counter with Asynchronous Clear
Manufacturer
Fairchild Semiconductor
Datasheet

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© 1999 Fairchild Semiconductor Corporation
74VHC161M
74VHC161SJ
74VHC161MTC
74VHC161N
74VHC161
4-Bit Binary Counter with Asynchronous Clear
General Description
The VHC161 is an advanced high-speed CMOS device
fabricated with silicon gate CMOS technology. It achieves
the high-speed operation similar to equivalent Bipolar
Schottky TTL while maintaining the CMOS low power dissi-
pation. The VHC161 is a high-speed synchronous modulo-
16 binary counter. This device is synchronously presettable
for application in programmable dividers and have two
types of Count Enable inputs plus a Terminal Count output
for versatility in forming synchronous multistage counters.
The VHC161 has an asynchronous Master Reset input that
overrides all other inputs and forces the outputs LOW. An
input protection circuit insures that 0V to 7V can be applied
to the input pins without regard to the supply voltage. This
device can be used to interface 5V to 3V systems and two
supply systems such as battery backup. This circuit pre-
Ordering Code:
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
Order Number
Package Number
MTC16
M16A
M16D
N16E
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
DS011635.prf
vents device destruction due to mismatched supply and
input voltages.
Features
High Speed:
f
Synchronous counting and loading
High-speed synchronous expansion
Low power dissipation:
I
High noise immunity: V
Power down protection provided on all inputs
Low noise: V
Pin and function compatible with 74HC161
MAX
CC
Package Description
4 A (max) at T
185 MHz (typ) at T
OLP
0.8V (max)
A
IEEE/IEC
NIH
25 C
A
August 1993
Revised April 1999
V
25 C
NIL
28% V
www.fairchildsemi.com
CC
(min)

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74VHC161 Summary of contents

Page 1

... MTC16 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74VHC161N N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. ...

Page 2

Connection Diagram Functional Description The VHC161 counts in modulo-16 binary sequence. From state 15 (HHHH) it increments to state 0 (LLLL). The clock inputs of all flip-flops are driven in parallel through a clock buffer. Thus all changes of the ...

Page 3

Mode Select Table Action on the Rising MR PE CET CEP Clock Edge ( Reset (Clear Load ( Count (Increment Change ...

Page 4

Absolute Maximum Ratings Supply Voltage ( Input Voltage ( Output Voltage ( OUT Input Diode Current ( Output Diode Current ( Output Current (I ) ...

Page 5

AC Electrical Characteristics V Symbol Parameter t Propagation Delay 3.3 PLH t Time (CP–Q ) PHL n 5.0 t Propagation Delay 3.3 PLH t Time (CP–TC, Count) PHL 5.0 t Propagation Delay 3.3 PLH t Time (CP–TC, Load) PHL 5.0 ...

Page 6

AC Operating Requirements Symbol Parameter t Minimum Setup Time S (P –CP Minimum Setup Time S (PE –CP) t Minimum Setup Time S (CEP or CET–CP) t Minimum Hold Time H (P –CP Minimum Hold Time ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M16A Package Number M16D 7 www.fairchildsemi.com ...

Page 8

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide www.fairchildsemi.com Package Number MTC16 8 ...

Page 9

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN ...

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