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부품번호 | U74AHC573 기능 |
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기능 | OCTAL TRANSPARENT D-TYPE LATCHES | ||
제조업체 | Unisonic Technologies | ||
로고 | |||
UNISONIC TECHNOLOGIES CO., LTD
U74AHC573
OCTAL TRANSPARENT
D-TYPE LATCHES WITH
3-STATE OUTPUTS
DESCRIPTION
The U74AHC573 is an octal transparent D-type latch with
3-state outputs, and it has 8 channels.
When the OE input is low and the LE input is high, the Q
outputs follow the D inputs. When OE is low and LE is low, the
Q outputs are latched at the logic levels of the D inputs.
When the OE input is high, the outputs are in the
high-impedance. The OE does not affect the internal operations
of the latches. Old data can be retained or new data can be
entered while the outputs are in the high-impedance state.
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
* Operate from 2V to 5.5V
* Inputs Accept Voltages to 5.5V
* Max tPD of 13ns at VCC=3.3V, CL=15pF
* Typ VOL< 0.36V at VCC=4.5V, IOL=8mA, TA=25°C
* Typ VOH> 3.94V at VCC=4.5V, IOH=-8mA, TA=25°C
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
U74AHC573L-P20-R
U74AHC573G-P20-R
U74AHC573L-P20-T
U74AHC573G-P20-T
Package
TSSOP-20
TSSOP-20
CMOS IC
TSSOP-20
Packing
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2012 Unisonic Technologies Co., Ltd
1 of 6
QW-R502-797.A
U74AHC573
CMOS IC
SWITCHING CHARACTERISTICS
PARAMETER
From D to Q
From LE to Q
From OE to Q
From OE to Q
Pulse Width, LE high
Setup Time, data before LE ↓
Hold Time, data after LE ↓
SYMBOL
TEST CONDITIONS
VCC=3.3V±0.3V, CL=15pF
VCC=3.3V±0.3V, CL=50pF
VCC=5V±0.5V, CL=15pF
tPLH/tPHL
VCC=5V±0.5V, CL=50pF
VCC=3.3V±0.3V, CL=15pF
VCC=3.3V±0.3V, CL=50pF
VCC=5V±0.5V, CL=15pF
VCC=5V±0.5V, CL=50pF
VCC=3.3V±0.3V, CL=15pF
tPZL/tPZH
VCC=3.3V±0.3V, CL=50pF
VCC=5V±0.5V, CL=15pF
VCC=5V±0.5V, CL=50pF
VCC=3.3V±0.3V, CL=15pF
tPLZ/tPHZ
VCC=3.3V±0.3V, CL=50pF
VCC=5V±0.5V, CL=15pF
VCC=5V±0.5V, CL=50pF
tW
VCC=3.3V±0.3V
VCC=5V±0.5V
tSU
VCC=3.3V±0.3V
VCC=5V±0.5V
tH
VCC=3.3V±0.3V
VCC=5V±0.5V
MIN
5
5
3.5
3.5
1.5
1.5
OPERATING CHARACTERISTICS (TA=25°C, unless otherwise specified)
TYP MAX
7 11
9.5 14.5
4.5 6.8
6 8.8
7.6 11.9
10.1 15.4
5 7.7
6.5 9.7
7.3 11.5
9.8 15
5.2 7.7
6.7 9.7
8.3 11
10.7 14.5
5.2 7.7
6.7 9.7
PARAMETER
Power Dissipation Capacitance
SYMBOL
TEST CONDITIONS
CPD No load, f=1MHz
RATINGS
16
UNIT
ns
ns
ns
ns
ns
ns
UNIT
pF
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
QW-R502-797.A
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부품번호 | 상세설명 및 기능 | 제조사 |
U74AHC573 | OCTAL TRANSPARENT D-TYPE LATCHES | Unisonic Technologies |
U74AHC574 | OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS | Unisonic Technologies |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |