Motorola MC74HC125AD, MC74HC125AN, MC74HC125ADT Datasheet

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SEMICONDUCTOR TECHNICAL DATA

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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).

• 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 µA

• High Noise Immunity Characteristic of CMOS Devices

• In Compliance with the Requirements Defined by JEDEC Standard

No. 7A

• Chip Complexity: 72 FETs or 18 Equivalent Gates

LOGIC DIAGRAM

HC125A

Active–Low Output Enables

Active–High Output Enables

HC126A

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N SUFFIX

14–LEAD PLASTIC DIP PACKAGE

CASE 646–06

D SUFFIX

14–LEAD PLASTIC SOIC PACKAGE

CASE 751A–03

DT SUFFIX

14–LEAD PLASTIC TSSOP PACKAGE

CASE 948G–01

OE1

OE2

OE3

OE4

Inputs Output

AOE Y

HL H

LL L

XH Z

PIN 14 = V PIN 7 = GND

FUNCTION TABLE

HC125A

OE1

OE2

OE3

OE4

Inputs Output

AOE Y

HH H

LH L

XL Z

HC126A

ORDERING INFORMATION

MC74HCXXXAN MC74HCXXXAD MC74HCXXXADT

Plastic SOIC TSSOP

PIN ASSIGNMENT

OE1

A1 Y1

OE2

A2 Y2

GND

1 2 3 4

6 7

14 13 12 11 105

OE4 A4

Y4 OE3

4/97

 Motorola, Inc. 1997

REV 8

MC74HC125A MC74HC126A

MAXIMUM RATINGS*

Symbol

DC Supply Voltage (Referenced to GND)

DC Input Voltage (Referenced to GND)

DC Output Voltage (Referenced to GND)

out

DC Input Current, per Pin

DC Output Current, per Pin

out

DC Supply Current, VCC and GND Pins

Power Dissipation in Still Air Plastic DIP†

ОООООООООООО

Storage Temperature

stg

Lead Temperature, 1 mm from Case for 10 Seconds

*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 TSSOP Package: – 6.1 mW/_C from 65_ to 125_C

For high frequency or heavy load considerations, see Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).

RECOMMENDED OPERATING CONDITIONS

Symbol

Vin, V

tr, t

ÎÎ

DC Supply Voltage (Referenced to GND)

DC Input Voltage, Output Voltage

out

(Referenced to GND)

Operating Temperature, All Package Types

Input Rise and Fall Time VCC = 2.0 V

(Figure 1) VCC = 4.5 V

ОООООООООООО

Parameter

SOIC Package†

TSSOP Package†

(Plastic DIP, SOIC or TSSOP Package)

Parameter

VCC = 6.0 V

Value

– 0.5 to + 7.0 – 0.5 to VCC + 0.5 – 0.5 to VCC + 0.5

± 20 ± 35 ± 75

750 500 450

ÎÎÎÎ

– 65 to + 150

260

Min

Max

2.0

6.0

– 55

+ 125

1000

500

400

Unit

V V

V mA mA mA

Unit

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 V

should be constrained to the

out

range GND v (Vin or V

Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused outputs must be left open.

) v VCC.

out

DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)

Symbol

ÎÎ

ÎÎÎОООООООÎООООООО

ÎÎ

Minimum High–Level Input

ООООООО

Voltage

ООООООО

Maximum Low–Level Input Voltage

ООООООО

Minimum High–Level Output Voltage

ООООООО

Maximum Low–Level Output

ООООООО

Voltage

ООООООО

Parameter

Test Conditions

= VCC – 0.1 V

out

ООООООО

| v 20 µA

out

ООООООО

= 0.1 V

out

| v 20 µA

out

ООООООО

Vin = V

| v 20 µA

out

ООООООО

Vin = V

ООООООО

| v 20 µA

out

ООООООО

Vin = V

ООООООО

| v 3.6 mA

out

| v 6.0 mA

out

| v 7.8 mA

out

| v 3.6 mA

out

| v 6.0 mA

out

| v 7.8 mA

out

2.0

ÎÎ

3.0

4.5

ÎÎ

6.0

2.0

3.0

ÎÎ

4.5

ÎÎ

6.0

2.0

4.5

ÎÎ

6.0

3.0

4.5

ÎÎ

6.0

2.0

ÎÎ

4.5

6.0

ÎÎ

3.0

ÎÎ

4.5

6.0

ÎÎ

Guaranteed Limit

– 55 to

25_C

1.5

ÎÎ

2.1

3.15

ÎÎ

4.2

0.5

0.9

ÎÎ

1.35

ÎÎ

1.8

1.9

4.4

ÎÎ

5.9

2.48

3.98

ÎÎ

5.48

0.1

ÎÎ

0.1

ÎÎ

0.26

ÎÎ

0.26

ÎÎ

85_C

1.5

ÎÎ

2.1

3.15

ÎÎ

4.2

0.5

0.9

ÎÎ

1.35

ÎÎ

1.8

1.9

4.4

ÎÎ

5.9

2.34

3.84

ÎÎ

5.34

0.1

ÎÎ

0.1

ÎÎ

0.33

ÎÎ

0.33

ÎÎ

125_C

1.5

ÎÎ

2.1

3.15

ÎÎ

4.2

0.5

0.9

ÎÎ

1.35

ÎÎ

1.8

1.9

4.4

ÎÎ

5.9

2.2

3.7

ÎÎ

5.2

0.1

ÎÎ

0.1

ÎÎ

0.4

ÎÎ

0.4

ÎÎ

Unit

MOTOROLA High–Speed CMOS Logic Data

DL129 — Rev 6

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