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PDF U74AHCT373 Data sheet ( Hoja de datos )
| Número de pieza | U74AHCT373 | |
| Descripción | OCTAL TRANSPARENT D-TYPE LATCHES | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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UNISONIC TECHNOLOGIES CO., LTD
U74AHCT373
OCTAL TRANSPARENT D-TYPE
LATCHES WITH 3-STATE
OUTPUTS
DESCRIPTION
The U74AHCT373 is an octal transparent D-type latch with
3-state outputs and 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
* Inputs are TTL-Voltage Compatible
* Operate from 4.5V to 5.5V
* Inputs Accept Voltages to 5.5V
* Max tPD of 8.5ns at VCC=5V, CL=15pF
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
U74AHCT373L-P20-R
U74AHCT373G-P20-R
U74AHCT373L-P20-T
U74AHCT373G-P20-T
Package
TSSOP-20
TSSOP-20
CMOS IC
TSSOP-20
Packing
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
1 of 6
QW-R502-685.A
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U74AHCT373
TEST CIRCUIT AND WAVEFORMS
CMOS IC
VCC
5V±0.5V
Input
VIN tR, tF
VCC ≤3ns
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
VLOAD
GND
VM
VCC/2
VLOAD
VCC
CL
15pF
50pF
RL
1kΩ
VΔ
0.5V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 6
QW-R502-685.A
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet U74AHCT373.PDF ] | |
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