UNISONIC TECHNOLOGIES CO., LTD U74HC374
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
DESCRIPTION
The UTC U74HC374 is an octal edge-triggered D-type flip-flop with 3-state outputs and 8 channels.
CMOS IC
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 VOL4.3V at VCC=4.5V, IOUT =6mA, Ta=25°C * Halogen Free
TSSOP-20
ORDERING INFORMATION
Ordering Number U74HC343G-P20-R Package TSSOP-20 Packing Tape Reel
www.unisonic.com.tw Copyright © 2009 Unisonic Technologies Co., Ltd
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U74HC374
PIN CONFIGURATION
CMOS IC
FUNCTION TABLE
INPUTS (OE ) L L L H INPUTS(CLK) INPUTS(D) H L X X OUTPUT(Q) H L Q0 Z
L /H X
LOGIC SYMBOL
OE 1 CLK 11 1D 3 2D 3D 4D 4 7 8 EN C1 1D 2 1Q 5 2Q 6 3Q 9 4Q
5D 13 6D 14 7D 17 8D 18
12 5Q 15 6Q 16 7Q 19 8Q
LOGIC DIAGRAM
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U74HC374
ABSOLUTE MAXIMUM RATING
CMOS IC
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 θJA RATINGS 83 UNIT °C/W
RECOMMENDED OPERATING CONDITIONS
PARAMETER Supply Voltage High-level Input Voltage SYMBOL VCC VIH 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 UNIT V V V V V V V V V ns ns ns
Low-level Input Voltage Input Voltage Output Voltage Input Rise or Fall Times
VIL VIN VOUT tR, tF
0 0 0 0 0
0.5 1.35 1.8 VCC VCC 1000 500 400
ELECTRICAL CHARACTERISTICS
PARAMETER SYMBOL 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 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 UNIT V V V V V V V V V V nA μA μA pF
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
0.1 0.1 0.1 0.26 0.26 ±100 ±0.5 8 10
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U74HC374
SWITCHING CHARACTERISTICS (See TEST CIRCUIT AND WAVEFORMS)
PARAMETER SYMBOL TEST CONDITIONS VCC=2V CL =50pF VCC=4.5V VCC=6V VCC=2V CL =150 pF VCC=4.5V VCC=6V VCC=2V VCC=4.5V CL =50pF 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 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
CMOS IC
From CLK to Q
tPLH/tPHL
From OE to Q
tPZL/tPZH
From OE to Q
tPLZ/tPHZ
Any Q
tT
MAX 180 36 31 230 46 39 150 30 26 200 40 34 150 30 26 60 12 10 210 42 36
Maximum Clock Frequency
fMAX
6 30 35 6 30 35
Clock Frequency
fCLOCK
6 30 35 80 16 14 100 20 17 10 5 5
Pulse Width
tW
Setup Time
tSU
Hold Time
th
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 MIN TYP 100 MAX UNIT pF
UNISONIC TECHNOLOGIES CO., LTD
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U74HC374
TEST CIRCUIT AND WAVEFORMS
From Output 1kΩ S VCC Open GND CL
CMOS IC
TEST CIRCUIT
VCC 50% 0V tSU th VCC 50% 50% 0V VCC VIN 50% tPZL tPLZ 50% 0V VCC VOUT 0V tPZH VOUT VOH 50% 50% VOL VOUT 50% tPHZ 90% 50% 0V VOH 10% VIN 50% 50% 0V
Timing Input
tW VCC
Data Input
VCC VIN 50% tPLH 50% tPHL
VOL
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.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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