Input tr, tf = 3ns, CL = 50pF (Worst Case). Over recommended operating free-air temperature range (unless otherwise noted)

(see Load Circuit and Voltage Waveforms)

PARAMETER

VCC (V)

-40°C TO 85°C

-55°C TO 125°C

UNIT

MIN

TYP

MAX

MIN

TYP

MAX

VOLP

Maximum (Peak) VOL During

switching of other outputs

(output under test not

switching)

5

1 at 25°C

1 at 25°C

V

CO

Three-state output

capacitance

15

15

pF

CI

Input capacitance

10

10

pF

CPD

Power dissipation capacitance

57

57

pF

ACT TYPES

tPLH, tPHL

Propagation delay, data to

output

5

2.7

9.1

2.5

10

ns

tPLZ, tPHZ

Propagation delay, output

disable to output

5

3.7

12.7

3.5

14

ns

tPZL, tPZH

Propagation delay, output

enable to output

5

3.8

13.1

3.6

14.4

ns

VOHV

Minimum (Valley) VOH During

switching of other outputs

(output under test not

switching)

5

4 at 25°C

4 at 25°C

V

VOLP

Maximum (Peak) VOL During

switching of other outputs

(output under test not

switching)

5

1 at 25°C

1 at 25°C

V

CO

Three-state output

capacitance

15

15

pF

CI

Input capacitance

10

10

pF

CPD

Power dissipation capacitance

57

57

pF

1. Limits tested 100%

2. 3.3V Min is at 3.6V, Max is at 3V

3. 5V Min is at 5.5V, Max is at 4.5V

4. CPD is used to determine the dynamic power consumption per channel

• AC: PD = VCC2 fi (CPD + CL)

• ACT: PD = VCC2 fi (CPD + CL) + VCC ∆ ICC where fi = input frequency, CL = output load capacitance,

VCC = supply voltage

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CD54AC245, CD74AC245, CD54ACT245, CD74ACT245

SCHS245D – NOVEMBER 1998 – REVISED APRIL 2024

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