© Semiconductor Components Industries, LLC, 2013
May, 2013 Rev. 13
1 Publication Order Number:
MC74HC161A/D
MC74HC161A,
MC74HC163A
Presettable Counters
HighPerformance SiliconGate CMOS
The MC74HC161A and HC163A are identical in pinout to the
LS161 and LS163. The device inputs are compatible with standard
CMOS outputs; with pullup resistors, they are compatible with
LSTTL outputs.
The HC161A and HC163A are programmable 4bit binary counters
with asynchronous and synchronous reset, respectively.
Features
Output Drive Capability: 10 LSTTL Loads
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0 mA
High Noise Immunity Characteristic of CMOS Devices
In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
Chip Complexity: 192 FETs or 48 Equivalent Gates
These are PbFree Devices
*For additional information on our PbFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
http://onsemi.com
MARKING
DIAGRAMS
SOIC16
D SUFFIX
CASE 751B
TSSOP16
DT SUFFIX
CASE 948F
1
16
1
16
1
16
HC16xAG
AWLYWW
HC
16xA
ALYWG
G
1
16
x = 1 or 3
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G or G = PbFree Package
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
ORDERING INFORMATION
(Note: Microdot may be in either location)
MC74HC161A, MC74HC163A
http://onsemi.com
2
Inputs Output
Clock Reset* Load Enable P Enable T Q
L X X X Reset
H L X X Load Preset Data
H H H H Count
H H L X No Count
H H X L No Count
FUNCTION TABLE
*HC163A only. HC161A is an Asynchronous Reset Device
H = high level, L = low level, X = don’t care
Figure 1. Pin Assignment
13
14
15
16
9
10
11
125
4
3
2
1
8
7
6
RESET
P0
CLOCK
GND
Q1
Q0
RIPPLE
CARRY OUT
V
CC
P1
P2
P3
ENABLE P
Q2
Q3
ENABLE T
LOAD
Figure 2. Logic Diagram
PIN 16 = V
CC
PIN 8 = GND
11
12
13
14
Q0
Q1
Q2
Q3
15
RIPPLE
CARRY
OUT
BCD OR
BINARY
OUTPUT
3
4
5
6
P0
P1
P2
P3
2
CLOCK
RESET
LOAD
ENABLE P
ENABLE T
COUNT
ENABLES
PRESET
DATA
INPUTS
1
9
7
10
DEVICE/MODE TABLE
Device
Count
Mode
Reset Mode
HC161A Binary Asynchronous
HC163A Binary Synchronous
MC74HC161A, MC74HC163A
http://onsemi.com
3
MAXIMUM RATINGS
Symbol Parameter Value Unit
V
CC
DC Supply Voltage *0.5 to )7.0 V
V
I
DC Input Voltage *0.5 to V
CC
)0.5 V
V
O
DC Output Voltage (Note 1) *0.5 v V
O
v V
CC
)0.5 V
I
IK
DC Input Diode Current $20 mA
I
OK
DC Output Diode Current $25 mA
I
O
DC Output Sink Current $25 mA
I
CC
DC Supply Current per Supply Pin $50 mA
I
GND
DC Ground Current per Ground Pin $50 mA
T
STG
Storage Temperature Range *65 to )150
_C
T
L
Lead Temperature, 1 mm from Case for 10 Seconds 260
_C
T
J
Junction Temperature Under Bias )150
_C
q
JA
Thermal Resistance SOIC
TSSOP
112
148
_C/W
P
D
Power Dissipation in Still Air at 85_C SOIC
TSSOP
500
450
mW
MSL Moisture Sensitivity Level 1
F
R
Flammability Rating Oxygen Index: 30% 35% UL 94 V0 @ 0.125 in
V
ESD
ESD Withstand Voltage Human Body Model (Note 2)
Machine Model (Note 3)
u2000
u200
V
I
LATCHUP
Latchup Performance Above V
CC
and Below GND at 85_C (Note 4)
$300 mA
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. I
O
absolute maximum rating must be observed.
2. Tested to EIA/JESD22A114A.
3. Tested to EIA/JESD22A115A.
4. Tested to EIA/JESD78.
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Max Unit
V
CC
DC Supply Voltage (Referenced to GND) 2.0 6.0 V
V
in
, V
out
DC Input Voltage, Output Voltage (Referenced to GND) 0 V
CC
V
T
A
Operating Temperature, All Package Types *55 )125
_C
t
r
, t
f
Input Rise and Fall Time (Figure 4) V
CC
= 2.0 V
V
CC
= 3.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
0
0
0
0
1000
600
500
400
ns
5. Unused inputs may not be left open. All inputs must be tied to a high or lowlogic input voltage level.

MC74HC161ADTG

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
Counter ICs LOG CMOS COUNTER 4BIT
Lifecycle:
New from this manufacturer.
Delivery:
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Payment:
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