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PDF U74AHC373 Data sheet ( Hoja de datos )
| Número de pieza | U74AHC373 | |
| Descripción | OCTAL TRANSPARENT D-TYPE LATCHES | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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UNISONIC TECHNOLOGIES CO., LTD
U74AHC373
OCTAL TRANSPARENT
D-TYPE LATCHES WITH
3-STATE OUTPUTS
DESCRIPTION
The U74AHC373 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 13.5ns at VCC=3.3V, CL=15pF
* Typ VOL< 0.36V at VCC=3V, IOL=4mA, TA=25°C
* Typ VOH> 2.58V at VCC=3V, IOH=-4mA, TA=25°C
ORDERING INFORMATION
Ordering Number
U74AHC373G-R20-T
U74AHC373G-P20-R
Package
SSOP-20
TSSOP-20
CMOS IC
Packing
Tube
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
1 of 6
QW-R502-669.C
1 page  
U74AHC373
TEST CIRCUIT AND WAVEFORMS
CMOS IC
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
VLOAD
GND
VCC
3.3V±0.3V
Input
VIN tR, tF
VCC ≤3ns
VM
VCC/2
VLOAD
VCC
CL
15pF
50pF
RL
1kΩ
V∆
0.3V
5V±0.5V
VCC
≤3ns
VCC/2
VCC
15pF
50pF
1kΩ
0.5V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 6
QW-R502-669.C
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet U74AHC373.PDF ] | |
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