OBSOLETE

54AC257, 54ACT257

SNOS102B – JULY 1998 – REVISED APRIL 2013

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ABSOLUTE MAXIMUM RATINGS

(1) (2)

−0.5V to +7.0V

−20 mA

+20 mA

−20 mA

+20 mA

±50 mA

±50 mA

−65°C to +150°C

CDIP

175°C

(1)

Absolute Maximum Ratings are those values beyond which damage to the device may occur. The databook specifications should be

met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading

variables. Texas Instruments does not recommend operation of FACT™ circuits outside databook specifications.

(2)

If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and

specifications.

RECOMMENDED OPERATINGCONDITIONS

'AC

2.0V to 6.0V

'ACT

4.5V to 5.5V

54AC/ACT

−55°C to +125°C

Minimum Input Edge Rate (

ΔV/Δt)

'AC Devices

125 mV/ns

Minimum Input Edge Rate (

ΔV/Δt)

'ACT Devices

125 mV/ns

DC CHARACTERISTICS FOR 'AC FAMILY DEVICES

54AC

Symbol

Parameter

Units

Conditions

(V)

−55°C to +125°C

Ensured Limits

Minimum High Level Input Voltage

3.0

2.1

4.5

3.15

V

5.5

3.85

Maximum Low Level Input Voltage

3.0

0.9

4.5

1.35

V

5.5

1.65

Minimum High Level Output Voltage

3.0

2.9

4.5

4.4

V

5.5

5.4

(1)

3.0

2.4

−12 mA

4.5

3.7

V

−24 mA

5.5

4.7

−24 mA

(1)

All outputs loaded; thresholds on input associated with output under test.

4

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