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HC126A Datasheet

Quad 3-State Noninverting Buffers

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MC74HC125A,
MC74HC126A
Quad 3-State Noninverting
Buffers
High−Performance Silicon−Gate CMOS
The MC74HC125A and MC74HC126A are identical in pinout to
the LS125 and LS126. The device inputs are compatible with standard
CMOS outputs; with pullup resistors, they are compatible with
LSTTL outputs.
The HC125A and HC126A 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 (HC125A) or active−high (HC126A).
Features
Output Drive Capability: 15 LSTTL Loads
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0 mA
High Noise Immunity Characteristic of CMOS Devices
In Compliance with the JEDEC Standard No. 7 A Requirements
Chip Complexity: 72 FETs or 18 Equivalent Gates
NLV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
LOGIC DIAGRAM
HC125A
Active−Low Output Enables
HC126A
Active−High Output Enables
A1
2
3
Y1
A1
2
3
Y1
OE1
1
5
A2
OE1
1
6
5
Y2
A2
6
Y2
OE2
4
9
A3
OE2
4
8 Y3
A3
9
8
Y3
OE3
10
12
A4
13
OE4
OE3
10
11
12
Y4
A4
13
OE4
PIN 14 = VCC
PIN 7 = GND
11
Y4
© Semiconductor Components Industries, LLC, 2014
1
August, 2014 − Rev. 15
http://onsemi.com
SOIC−14 NB
D SUFFIX
CASE 751A
TSSOP−14
DT SUFFIX
CASE 948G
PIN ASSIGNMENT
OE1 1
A1 2
Y1 3
OE2 4
A2 5
Y2 6
GND 7
14 VCC
13 OE4
12 A4
11 Y4
10 OE3
9 A3
8 Y3
MARKING DIAGRAMS
14
HC12xAG
AWLYWW
1
SOIC−14 NB
14
HC
12xA
ALYWG
G
1
TSSOP−14
x
A
L, WL
Y, YY
W, WW
G or G
= 5, 6
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
FUNCTION TABLE
HC125A
Inputs Output
A OE Y
HL
H
LL
L
XH
Z
HC126A
Inputs Output
A OE Y
HH H
LH
L
XL
Z
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
Publication Order Number:
MC74HC125A/D


  ON Semiconductor Electronic Components Datasheet  

HC126A Datasheet

Quad 3-State Noninverting Buffers

No Preview Available !

MC74HC125A, MC74HC126A
MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VCC DC Supply Voltage (Referenced to GND)
–0.5 to +7.0
V
Vin DC Input Voltage (Referenced to GND)
–0.5 to VCC + 0.5 V
Vout DC Output Voltage (Referenced to GND)
–0.5 to VCC + 0.5 V
Iin
DC Input Current, per Pin
±20
mA
Iout DC Output Current, per Pin
±35
mA
ICC DC Supply Current, VCC and GND Pins
±75
mA
PD Power Dissipation in Still Air
SOIC Package†
500
mW
TSSOP Package†
450
Tstg Storage Temperature
–65 to +150
_C
TL Lead Temperature, 1 mm from Case for 10 Seconds
_C
(SOIC or TSSOP Package)
260
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of
these limits are exceeded, device functionality should not be assumed, damage may occur and
reliability may be affected.
†Derating: SOIC Package: –7 mW/_C from 65_ to 125_C
TSSOP Package: –6.1 mW/_C from 65_ to 125_C
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 cir-
cuit. For proper operation, Vin and
Vout should be constrained to the
range GND v (Vin or Vout) v 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.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Max
Unit
VCC
Vin, Vout
DC Supply Voltage (Referenced to GND)
DC Input Voltage, Output Voltage
(Referenced to GND)
2.0
6.0
V
0
VCC
V
TA Operating Temperature, All Package Types
–55
+125
_C
tr, tf Input Rise and Fall Time
(Figure 1)
VCC = 2.0 V
0
VCC = 4.5 V
0
VCC = 6.0 V
0
1000
ns
500
400
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
http://onsemi.com
2


Part Number HC126A
Description Quad 3-State Noninverting Buffers
Maker ON Semiconductor
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