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부품번호 | U74AHCT374 기능 |
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기능 | OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS | ||
제조업체 | Unisonic Technologies | ||
로고 | |||
UNISONIC TECHNOLOGIES CO., LTD
U74AHCT374
OCTAL EDGE-TRIGGERED
D-TYPE FLIP-FLOPS WITH
3-STATE OUTPUTS
CMOS IC
DESCRIPTION
The U74AHCT374 is a octal edge-triggered D-type flip-flops
with 3-state outputs and 8 channels.
When the OE input is low, on the positive transition of the
clock (CLK) input, the Q outputs are set to the logic levels of the
data (D) inputs.
When the OE input is high, the outputs are in the
high-impedance.
To ensure the high-impedance state during power up or
power down, OE should be tied to VCC through a pull-up
resistor; the minimum value of the resistor is determined by the
current-sinking capability of the driver.
FEATURES
* Inputs are TTL-Voltage Compatible
* Operate from 4.5V to 5.5V
* Inputs Accept Voltages to 5.5V
* Max tPD of 9.4ns at VCC=5V, CL=15pF
* Typical VOL< 0.36V at VCC=4.5V, IOL=8mA, TA=25°C
* Typical VOH> 3.94V at VCC=4.5V, IOH=-8mA, TA=25°C
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
U74AHCT374L-P20-R
U74AHCT374G-P20-R
U74AHCT374L-P20-T
U74AHCT374G-P20-T
Package
TSSOP-20
TSSOP-20
TSSOP-20
Packing
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
1 of 6
QW+R502-690.A
U74AHCT374
CMOS IC
SWITCHING CHARACTERISTICS (TA =25℃, See TEST CIRCUIT AND WAVEFORMS)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX
From CLK to Q
tPLH/tPHL VCC = 5 V ± 0.5 V
CL =15pF
CL =50pF
5.6 9.4
6.4 10.4
From OE to Q
tPZL/tPZH VCC = 5 V ± 0.5 V
CL =15pF
CL =50pF
6.5 10.2
7.3 11.2
From OE to Q
tPLZ/tPHZ VCC = 5 V ± 0.5 V
Maximum Clock Frequency
Pulse Width
Setup Time
Hold Time
fMAX VCC = 5 V ± 0.5 V
tW VCC = 5 V ± 0.5 V
tSU VCC = 5 V ± 0.5 V
tH VCC = 5 V ± 0.5 V
CL =15pF
CL =50pF
CL =15pF
CL =50pF
6.2 10.2
7 11.2
90 140
85 130
6.5
2.5
2.5
UNIT
ns
ns
ns
MHz
ns
ns
ns
OPERATING CHARACTERISTICS(TA=25°С)
PARAMETER
Power Dissipation Capacitance
SYMBOL
TEST CONDITIONS
CPD No load, VCC = 5 V, f=1MHz
MIN TYP MAX UNIT
27 pF
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
QW-R502-690.A
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부품번호 | 상세설명 및 기능 | 제조사 |
U74AHCT373 | OCTAL TRANSPARENT D-TYPE LATCHES | Unisonic Technologies |
U74AHCT374 | OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS | Unisonic Technologies |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |