TC74VHC161F Toshiba, TC74VHC161F Datasheet - Page 2

• Manufacturer Part Number: TC74VHC161F
• Manufacturer: Toshiba
• Type: Binaryr

Specifications of TC74VHC161F

• 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
• 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: Not Compliant

Pin Assignment
IEC Logic Symbol
Truth Table (Note)
LOAD
Note:
CLR
CLR
ENP
ENT
H
H
H
H
H
L
CK
A
B
C
D
CLR
GND
ENP
CK
C
D
A
B
(10)
LD
(1)
(9)
(7)
(2)
(3)
(4)
(5)
(6)
H
X
H
H
X
X: Don’t care
A, B, C, D: Logic level of data inputs
Carry: CARRY = ENT･QA･QB･QC･QD
L
TC74VHC161
1
2
3
4
5
6
7
8
Inputs
1, 5D
ENP
CT = 0
M1
M2
G3
G4
X
X
X
H
X
L
TC74VHC161
C5/2, 3, 4+
CTRDIV 16
(top view)
ENT
3CT = 15
[1]
[2]
[4]
[8]
X
X
X
H
X
L
CK
X
16
15
14
13
12
11
10
9
(15)
(14)
(13)
(12)
(11)
CLR
H
H
H
H
X
L
V
CARRY OUTPUT
QA
QB
QC
QD
ENT
LOAD
CC
CARRY OUTPUT
QA
QB
QC
QD
LD
X
H
H
H
X
L
TC74VHC163
Inputs
ENP
X
H
X
X
L
X
2
ENT
X
X
X
H
X
L
LOAD
CLR
ENP
ENT
CK
CK
C
D
A
B
(10)
TC74VHC161,163F/FN/FT/FK
(1)
(9)
(7)
(2)
(3)
(4)
(5)
(6)
A
No Change
No Change
Count Up
No Change
QA
L
1, 5D
5CT = 0
M1
M2
G3
G4
B
TC74VHC163
C5/2, 3, 4+
QB
CTRDIV 16
L
Outputs
3CT = 15
[1]
[2]
[4]
[8]
C
QC
L
D
QD
L
(15)
(14)
(13)
(12)
(11)
Reset to “0”
Preset Data
No Count
No Count
Count
No Count
2007-10-01
CARRY OUTPUT
QA
QB
QC
QD
Function