Datasheet

UNISONIC TECHNOLOGIES CO., LTD
U74LVC374
CMOS IC
OCTAL EDGE-TRIGGERED
D-TYPE FLIP-FLOPS
WITH 3-STATE OUTPUTS

DESCRIPTION
The U74LVC374 is an octal edge-triggered D-type flip-flop with
3-state outputs and 8 channels.

FEATURES
* Operate from 1.65V to 3.6V
* Max tpd of 6.5ns at 3.3 V
* Typical VOL< 0.8V @ VCC=3.3V (TA=25°C)
* Typical VOH> 2.0V @ VCC=3.3V (TA=25°C)
* Power off disables outputs, permitting live insertion

ORDERING INFORMATION
Ordering Number
U74LVC374G-S20-R
U74LVC374G-P20-R

Package
SOP-20
TSSOP-20
Packing
Tape Reel
Tape Reel
MARKING
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Copyright © 2015 Unisonic Technologies Co., Ltd
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U74LVC374
CMOS IC

PIN CONFIGURATION

FUNCTION TABLE
INPUTS (OE)
INPUTS(CLK)
INPUTS(D)
OUTPUT(Q)
H
L
X
X
H
L
Q0
Z
L

L

L
L /H
H
X
Note: H: HIGH voltage level; L: LOW voltage level.

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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
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
-0.5 ~ +6.5
V
Input Voltage
VIN
-0.5 ~ +6.5
V
Voltage Range Applied To Any Output
-0.5 ~ +6.5
V
In The High-Impedance Or Power-Off State
VOUT
Voltage Range Applied To Any Output
-0.5 ~ VCC+0.5
V
In The High Or Low State
VCC or GND Current
ICC
±100
mA
Output Current
IOUT
±50
mA
Input Clamp Current
IIK
-50
mA
Output Clamp Current
IOK
-50
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
TSSOP-20
θJA
RATINGS
58
83
UNIT
C/W
C/W
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
Supply Voltage
VCC
High-level Input Voltage
VIH
TEST CONDITIONS
Operating
Data retention only
VCC=1.65V to 1.95V
VCC=2.3V to 2.7V
VCC=2.7V to 3.6V
MIN
1.65
1.5
0.65
×VCC
1.7
2
VCC=1.65V to 1.95V
Low-level Input Voltage
VIL
Input Voltage
VIN
Output Voltage
VOUT
High-level Output Current
IOH
Low-level Output Current
IOL
Input transition Rise or Fall rate
VCC=2.3V to 2.7V
VCC=2.7V to 3.6V
High or low state
3 state
VCC=1.65V
VCC=2.3V
VCC=2.7V
VCC=3V
VCC=1.65V
VCC=2.3V
VCC=2.7V
VCC=3V
∆t/∆v
UNISONIC TECHNOLOGIES CO., LTD
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0
0
0
TYP
MAX
3.6
UNIT
V
V
V
V
V
0.35
×VCC
0.7
0.8
5.5
VCC
5.5
-4
-8
-12
-24
4
8
12
24
10
V
V
V
V
V
V
mA
mA
mA
mA
mA
mA
mA
mA
ns/V
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CMOS IC
ELECTRICAL CHARACTERISTICS (TA =25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
VCC=1.65~3.6V, IOH=-100μA
Output Voltage High-Level
Output Voltage Low-Level
Input Leakage Current
Power OFF Leakage Current
3-state Output Off-state Current
Quiescent Supply Current
Additional Quiescent Supply
Current
VOH
VOL
II(LEAK)
IOFF
IOZ
ICC
ICC
Input Capacitance
CI
Output Capacitance
CO
Notes: 1. VCC=3.3V.
2. This applies in the disabled state only.

TYP
MAX
(Note1)
VCC
-0.2
1.2
1.7
2.2
2.4
2.2
UNIT
V
0.2
0.45
0.7
0.4
0.55
±5
±10
±10
10
V
V
V
V
V
V
V
V
V
V
μA
μA
μA
μA
10
μA
500
μA
4
5.5
pF
pF
SWITCHING CHARACTERISTICS (TA =25°C, unless otherwise specified)
PARAMETER
Propagation delay from input CLK
to output Q
Propagation delay from input
OE to output Q
Propagation delay from input
OE to output Q
Maximum Clock Frequency
Clock Frequency
SYMBOL
tPLH/tPHL
tPZL/tPZH
tPLZ/tPHZ
fMAX
fCLOCK
Pulse Width
tW
Setup Time
tSU
Hold Time
th

VCC=1.65V, IOH=-4mA
VCC=2.3V, IOH=-8mA
VCC=2.7V, IOH=-12mA
VCC=3V, IOH=-12mA
VCC=3V, IOH=-24mA
VCC=1.65~3.6V, IOL=100μA
VCC=1.65V, IOL=4mA
VCC=2.3V, IOL=8mA
VCC=2.7V, IOL=12mA
VCC=3V, IOL=24mA
VCC=3.6V, VIN=0 to 5.5V
VCC=0V, VIN or VOUT=5.5V
VCC=3.6V, VOUT=0 to 5.5V
VCC=3.6V, VIN=VCC or GND, IOUT=0
,
VCC=3.6V,3.6V≤VIN≤5.5V
IOUT=0(Note 2)
VCC=2.7~3.6V
One input at VCC-0.6V
Other inputs at VCC or GND
VCC=3.3V, VIN=VCC or GND
VCC=3.3V, VOUT=VCC or GND
MIN
TEST CONDITIONS
VCC=2.7V
VCC=3.3V±0.3V
VCC=2.7V
MIN
VCC=3.3V±0.3V
1.5
TYP
1.5
VCC=2.7V
VCC=3.3V±0.3V
1.5
VCC=2.7V
VCC=3.3V±0.3V
VCC=2.7V
VCC=3.3V±0.3V
VCC=2.7V
VCC=3.3V±0.3V
VCC=2.7V
VCC=3.3V±0.3V
VCC=2.7V
VCC=3.3V±0.3V
80
100
MAX
8.1
7
8.5
UNIT
ns
ns
ns
7.5
ns
7.1
ns
6.5
80
100
3.3
3.3
2
2
1.5
1.5
ns
MHz
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
OPERATING CHARACTERISTICS (TA =25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Power Dissipation
Outputs Enabled
f=10MHz, VCC=3.3V±0.3V
CPD
Capacitance Per Flip-flop Outputs Disabled
f=10MHz, VCC=3.3V±0.3V
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MIN
TYP
54.5
13.5
MAX
UNIT
pF
pF
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
CMOS IC
TEST CIRCUIT AND WAVEFORMS
S
VLOAD
Open
RL
GND
From Output
CL
TEST
tPLH/tPHL
tPHZ/tPZH
tPLZ/tPZL
RL
S
Open
GND
VLOAD
TEST CIRCUIT
Inputs
VCC
VIN
VCC
VCC
2.7V
2.7V
1.8V±0.15V
2.5V±0.2V
2.7V
3.3V±0.3V
tR, tF
≤2ns
≤2ns
≤2.5ns
≤2.5ns
VM
VLOAD
V∆
CL
RL
VCC/2
VCC/2
1.5V
1.5V
2 x VCC
2 x VCC
6V
6V
0.15V
0.15V
0.3V
0.3V
30pF
30pF
50pF
50pF
1KΩ
500Ω
500Ω
500Ω
tW
VIN
Input
VM
VM
0V
SETUP TIME AND HOLD TIME
PULSE WIDTH
VIN
Input
VM
VM
tPLH
tPHL
0V
VOH
Output
VM
VM
VOL
PROPAGATION DELAY TIMES
ENABLE AND DISABLE TIMES
Note: CL includes probe and jig capacitance.
All input pulses are supplied by generators having the following characteristics: PRR ≤10MHz, Zo = 50Ω.
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U74LVC374
CMOS IC
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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