74HC_HCT257_5

© NXP B.V. 2010. All rights reserved.

Product data sheet

Rev. 05 — 13 January 2010

5 of 17

NXP Semiconductors

74HC257; 74HCT257

Quad 2-input multiplexer; 3-state

7.

Limiting values

[1]

For DIP16 packages: above 70

°C, P

[2]

For SO16 packages: above 70

°C, P

[3]

For SSOP16 and TSSOP16 packages: above 60

°C, P

8.

Recommended operating conditions

Table 4.

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).

Symbol

Parameter

Conditions

Min

Max

Unit

supply voltage

−0.5

+7

V

input clamping current

-

±20

mA

output clamping current

-

±20

mA

output current

-

±35

mA

supply current

-

+70

mA

ground current

-

−70

mA

storage temperature

−65

+150

°C

total power dissipation

DIP16 package

[1] -

750

mW

SO16 package

[2] -

500

mW

SSOP16 package

[3] -

500

mW

TSSOP16 package

[3] -

500

mW

Table 5.

Recommended operating conditions

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Type 74HC257

supply voltage

2.0

5.0

6.0

V

input voltage

0

-

V

output voltage

0

-

V

Δt/ΔV

input transition rise and

fall rates

-

-

625

ns

-

1.67

139

ns

-

-

83

ns

ambient temperature

−40

-

+125

°C

Type 74HCT257

supply voltage

4.5

5.0

5.5

V

input voltage

0

-

V

output voltage

0

-

V

Δt/ΔV

input transition rise and

fall rates

-

1.67

139

ns

ambient temperature

−40

-

+125

°C