74VHC161SJ Fairchild Semiconductor, 74VHC161SJ Datasheet - Page 3

• Manufacturer Part Number: 74VHC161SJ
• Description: IC COUNTER BINARY 4BIT 16SOP
• Manufacturer: Fairchild Semiconductor
• Series: 74VHCr
• Type: Binaryr

Specifications of 74VHC161SJ

• Logic Type: Binary Counter
• Direction: Up
• Number Of Elements: 1
• Number Of Bits Per Element: 4
• Reset: Asynchronous
• Timing: Synchronous
• Count Rate: 125MHz
• Trigger Type: Positive Edge
• Voltage - Supply: 2 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (5.3mm Width), 16-SO, 16-SOEIIJ
• Technology: CMOS
• Number Of Elements: 1
• Number Of Bits: 4
• Logic Family: VHC
• Logical Function: Counter
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Output Type: Standard
• Package Type: SOP
• Propagation Delay Time: 23.5ns
• Operating Temp Range: -40C to 85C
• Operating Supply Voltage (min): 2V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

©1993 Fairchild Semiconductor Corporation
74VHC161 Rev. 1.4
Mode Select Table
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Block Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to
estimate propagation delays.
MR
H
H
H
H
L
PE
X
H
H
H
L
CET CEP
H
X
X
X
L
X
X
H
X
L
Reset (Clear)
Load (P
Count (Increment)
No Change (Hold)
No Change (Hold)
Action on the Rising
Clock Edge (
n
→ Q
n
)
)
3
State Diagram
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