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74VHC161 View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
View to exact match
74VHC161
Fairchild
Fairchild Semiconductor Fairchild
74VHC161 Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
August 1993
Revised February 2002
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-
vents device destruction due to mismatched supply and
input voltages.
Features
s High Speed:
fMAX = 185 MHz (typ) at TA = 25°C
s Synchronous counting and loading
s High-speed synchronous expansion
s Low power dissipation:
ICC = 4 µA (max) at TA = 25°C
s High noise immunity: VNIH = VNIL = 28% VCC (min)
s Power down protection provided on all inputs
s Low noise: VOLP = 0.8V (max)
s Pin and function compatible with 74HC161
Ordering Code:
Order Number Package Number
Package Description
74VHC161M
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74VHC161SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74VHC161MTC
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.
Logic Symbols
IEEE/IEC
© 2002 Fairchild Semiconductor Corporation DS011635
www.fairchildsemi.com
 

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