74HC243DB データシートの表示（PDF） - NXP Semiconductors.

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74HC243DB

Quad bus transceiver; 3-state

NXP Semiconductors. 

Philips Semiconductors

74HC243

Quad bus transceiver; 3-state

7. Functional description

7.1 Function table

Table 4:

Control

OEA

L

H

L

H

Function table [1]

OEB

L

L

H

H

[1] H = HIGH voltage level;

L = LOW voltage level;

Z = high-impedance OFF-state.

8. Limiting values

Input or output

An

input

Z

Z

A=B

Bn

B=A

Z

Z

input

Table 5: 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

VCC

supply voltage

−0.5 +7 V

IIK

input diode current

VI < −0.5 V or VI > VCC + 0.5 V

-

±20 mA

IOK

output diode current

VO < −0.5 V or

VO > VCC + 0.5 V

-

±20 mA

IO

output source or sink

VO = −0.5 V to VCC + 0.5 V

current

-

±35 mA

ICC, IGND VCC or GND current

Tstg

storage temperature

-

±70 mA

−65 +150 °C

Ptot

power dissipation

DIP14 package

[1] -

750 mW

SO14 and SSOP16

packages

[2] -

500 mW

[1] Above 70 °C: Ptot derates linearly with 12 mW/K.

[2] Above 70 °C: Ptot derates linearly with 8 mW/K.

9397 750 13808

Product data sheet

Rev. 03 — 12 November 2004

© Koninklijke Philips Electronics N.V. 2004. All rights reserved.

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