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IK Semiconductor

IN74HC125A Datasheet Preview

IN74HC125A Datasheet

Quad 3-State Buffer

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TECHNICAL DATA
IN74HC125A
Quad 3-State Noninverting Buffers
The IN74HC125A is identical in pinout to the LS/ALS125. The device
inputs are compatible with standard CMOS outputs; with pullup resistors,
they are compatible with LS/ALSTTL outputs.
The IN74HC125A noninverting buffers are designed to be used with 3-
state memory address drivers, clock drivers, and other bus-oriented systems.
The devices have four separate output enables that are active-low.
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0 µA
High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
IN74HC125AN Plastic
IN74HC125AD SOIC
TA = -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 14 =VCC
PIN 7 = GND
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FUNCTION TABLE
Inputs
A OE
HL
LL
XH
Output
Y
H
L
Z
X = don’t care
Z = high impedance
1




IK Semiconductor

IN74HC125A Datasheet Preview

IN74HC125A Datasheet

Quad 3-State Buffer

No Preview Available !

IN74HC125A
MAXIMUM RATINGS*
Symbol
Parameter
Value
VCC
VIN
VOUT
IIN
IOUT
ICC
PD
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+
-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
Parameter
VCC
VIN, VOUT
DC Supply Voltage (Referenced to GND)
DC Input Voltage, Output Voltage (Referenced to GND)
TA Operating Temperature, All Package Types
tr, tf Input Rise and Fall Time (Figure 1)
VCC =2.0 V
VCC =4.5 V
VCC =6.0 V
Min Max Unit
2.0 6.0
V
0 VCC V
-55 +125 °C
0 1000 ns
0 500
0 400
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 IN74HC125A
Description Quad 3-State Buffer
Maker IK Semiconductor
Total Page 6 Pages
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