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IK Semiconductor

IN74HCT373A Datasheet Preview

IN74HCT373A Datasheet

Octal D-Type Latch

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Octal 3-State Noninverting
Transparent Latch
TECHNICAL DATA
IN74HCT373A
The IN74HCT373A may be used as a level converter for interfacing
TTL or NMOS outputs to High-Speed CMOS inputs.
The IN74HCT373A is identical in pinout to the LS/ALS373.
The eight latches of the IN74HCT373A are transparent D-type latches.
While the Latch Enable is high the Q outputs follow the Data Inputs.
When Latch Enable is taken low, data meeting the setup and hold times
becomes latched.
The Output Enable does not affect the state of the latch, but when
Output Enable is high, all outputs are forced to the high-impedance state.
Thus, data may be latched even when the outputs are not enabled.
TTL/NMOS-Compatible Input Levels
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1.0 µA
ORDERING INFORMATION
IN74HCT373AN Plastic
IN74HCT373ADW SOIC
TA = -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
www.datasheet4u.cPPIIoNNm2100==VGCCND
FUNCTION TABLE
Inputs
Output Latch
Enable Enable
LH
LH
LL
HX
X = Don’t Care
Z = High Impedance
D
H
L
X
X
Output
Q
H
L
No Change
Z
1




IK Semiconductor

IN74HCT373A Datasheet Preview

IN74HCT373A Datasheet

Octal D-Type Latch

No Preview Available !

IN74HCT373A
MAXIMUM RATINGS*
Symbol
VCC
VIN
VOUT
IIN
IOUT
ICC
PD
Parameter
DC Supply Voltage (Referenced to GND)
DC Input Voltage (Referenced to GND)
DC Output Voltage (Referenced to GND)
DC Input Current, per Pin
DC Output Current, per Pin
DC Supply Current, VCC and GND Pins
Power Dissipation in Still Air, Plastic DIP**
SOIC Package**
Value
-0.5 to +7.0
-1.5 to VCC +1.5
-0.5 to VCC +0.5
±20
±35
±75
750
500
Tstg Storage Temperature
-65 to +150
TL Lead Temperature, 1 mm from Case for 10 Seconds
(Plastic DIP or SOIC Package)
260
*Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
**Derating - Plastic DIP: - 10 mW/°C from 65° to 125°C
SOIC Package: : - 7 mW/°C from 65° to 125°C
Unit
V
V
V
mA
mA
mA
mW
°C
°C
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
VIN, VOUT
TA
tr, tf
Parameter
DC Supply Voltage (Referenced to GND)
DC Input Voltage, Output Voltage (Referenced to GND)
Operating Temperature, All Package Types
Input Rise and Fall Time (Figure 1)
Min Max Unit
4.5 5.5
V
0 VCC V
-55 +125 °C
0 500 ns
This device contains protection circuitry to guard against damage due to high static voltages or electric fields.
However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this
high-impedance circuit. For proper operation, VIN and VOUT should be constrained to the range GND(VIN or
VOUT)VCC.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused
outputs must be left open.
2


Part Number IN74HCT373A
Description Octal D-Type Latch
Maker IK Semiconductor
Total Page 6 Pages
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