Datasheet

UNISONIC TECHNOLOGIES CO., LTD
U74HC374
CMOS IC
OCTAL EDGE-TRIGGERED
D-TYPE FLIP-FLOPS
WITH 3-STATE OUTPUTS

SOP-20
DESCRIPTION
The UTC U74HC374 is an octal edge-triggered D-type flip-flop
with 3-state outputs and 8 channels.

FEATURES
* Operate from 2V to 6V
* Max tPD of 46ns at 4.5 V, TA =25°C
* Max ICC of 8μA, TA =25°C
* Typical VOL<0.17V at VCC=4.5V,IOUT=-6mA,TA=25°C
* Typical VOH>4.3V at VCC=4.5V, IOUT =6mA, TA=25°C

TSSOP-20
ORDERING INFORMATION
Ordering Number
U74HC374G-S20-R
U74HC374G-R20-T
U74HC374G-P20-R

SSOP-20
Package
SOP-20
SSOP-20
TSSOP-20
Packing
Tape Reel
Tube
Tape Reel
MARKING
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U74HC374
CMOS IC

PIN CONFIGURATION

FUNCTION TABLE

INPUTS (OE )
INPUTS(CLK)
INPUTS(D)
OUTPUT(Q)
L
L
L
H


L /H
X
H
L
X
X
H
L
Q0
Z
LOGIC SYMBOL
OE 1
CLK 11
1D 3
2D
3D
4D
4
EN
C1
1D
7
8
5D 13
6D 14
7D 17
8D 18

2 1Q
5 2Q
6 3Q
9 4Q
12 5Q
15 6Q
16 7Q
19 8Q
LOGIC DIAGRAM
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U74HC374

CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
-0.5 ~ +7
V
VCC or GND Current
ICC
±70
mA
Output Current
IOUT
±35
mA
Input Clamp Current
IIK
±20
mA
Output Clamp Current
IOK
±20
mA
Operating Temperature
TOPR
-40 ~ + 85
°C
Storage Temperature
TSTG
-65 ~ + 150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

THERMAL DATA
PARAMETER
Junction to Ambient

SYMBOL
SOP-20
SSOP-20
TSSOP-20
UNIT
°C /W
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
SYMBOL
VCC
High-Level Input Voltage
VIH
Low-Level Input Voltage
VIL
Input Voltage
Output Voltage
VIN
VOUT
Input Rise or Fall Times
tR, tF

θJA
RATINGS
58
75
83
TEST CONDITIONS
VCC=2V
VCC=4.5V
VCC=6V
VCC=2V
VCC=4.5V
VCC=6V
High or low state
VCC=2V
VCC=4.5V
VCC=6V
MIN
2
1.5
3.15
4.2
TYP
5
MAX
6
0.5
1.35
1.8
VCC
VCC
1000
500
400
0
0
0
0
0
UNIT
V
V
V
V
V
V
V
V
V
ns
ns
ns
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
Output Voltage High-Level
VOH
Output Voltage Low-Level
VOL
Input Leakage Current
3-State Leakage Current
Quiescent Supply Current
Input Capacitance
II(LEAK)
IOZ
ICC
CI
TEST CONDITIONS
VCC=2V, IOH=-20μA
VCC=4.5V, IOH=-20μA
VCC=6V, IOH=-20μA
VCC=4.5V, IOH=-6mA
VCC=6V, IOH=-7.8mA
VCC=2V, IOL=20μA
VCC=4.5V, IOL=20μA
VCC=6V, IOL=20μA
VCC=4.5V, IOL=6mA
VCC=6V, IOL=7.8mA
VCC=6V, VIN= VCC or GND
VCC=6V, VOUT= VCC or GND
VCC=6V, VIN=VCC or GND, IOUT=0
VCC=2V~ 6V
UNISONIC TECHNOLOGIES CO., LTD
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MIN
1.9
4.4
5.9
3.98
5.48
TYP
1.999
4.499
5.999
4.3
5.8
0.002
0.001
0.001
0.17
0.15
±0.1
±0.01
3
MAX
0.1
0.1
0.1
0.26
0.26
±100
±0.5
8
10
UNIT
V
V
V
V
V
V
V
V
V
V
nA
μA
μA
pF
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U74HC374

CMOS IC
SWITCHING CHARACTERISTICS (See TEST CIRCUIT AND WAVEFORMS)
PARAMETER
SYMBOL
From CLK to Q
tPLH/tPHL
From OE to Q
tPZL/tPZH
From OE to Q
tPLZ/tPHZ
Any Q
tT
Maximum Clock Frequency
fMAX
Clock Frequency
fCLOCK
Pulse Width
tW
Setup Time
tSU
Hold Time
th

TEST CONDITIONS
VCC=2V
CL =50pF
VCC=4.5V
VCC=6V
VCC=2V
CL =150 pF
VCC=4.5V
VCC=6V
VCC=2V
CL =50pF
VCC=4.5V
VCC=6V
VCC=2V
CL =150 pF
VCC=4.5V
VCC=6V
VCC=2V
CL =50pF
VCC=4.5V
VCC=6V
VCC=2V
CL =50pF
VCC=4.5V
VCC=6V
VCC=2V
CL =150 pF
VCC=4.5V
VCC=6V
VCC=2V
CL =50pF
VCC=4.5V
VCC=6V
VCC=2V
CL =150pF
VCC=4.5V
VCC=6V
VCC=2V
VCC=4.5V
VCC=6V
VCC=2V
VCC=4.5V
VCC=6V
VCC=2V
VCC=4.5V
VCC=6V
VCC=2V
VCC=4.5V
VCC=6V
MIN
6
30
35
6
30
35
TYP
63
17
15
80
22
19
60
16
14
70
25
22
36
17
16
28
8
6
45
17
13
12
60
70
12
60
70
MAX
180
36
31
230
46
39
150
30
26
200
40
34
150
30
26
60
12
10
210
42
36
6
30
35
80
16
14
100
20
17
10
5
5
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
OPERATING CHARACTERISTICS (TA=25°С)
PARAMETER
Power Dissipation Capacitance
SYMBOL
CPD
TEST CONDITIONS
No load
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MIN
TYP
100
MAX
UNIT
pF
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U74HC374

CMOS IC
TEST CIRCUIT AND WAVEFORMS
S
1kΩ
From Output
VCC
Open
GND
CL
TEST CIRCUIT
VCC
Timing
Input
tW
50%
0V
tSU
VCC
VIN
th
50%
50%
0V
VCC
Data
Input
50%
50%
0V
VCC
VIN
50%
50%
tPLH
50%
0V
VOH
50%
50%
VOL
VOUT
10%
VOL
tPHZ
tPZH
VOUT
0V
tPLZ
VCC
VOUT
tPHL
50%
tPZL
VCC
VIN
50%
90%
VOH
50%
0V
Note: CL includes probe and jig capacitance.
PRR ≤1MHz, ZO = 50Ω, tR ≤6ns, tF ≤6ns.
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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