74F863 datasheet(4/12 Pages) PHILIPS

4 / 12 page

Philips Semiconductors

Product specification

74F862, 74F863

Bus transceivers (3-State)

2000 Mar 24

LOGIC DIAGRAM

74F862

OEAB

OEBA

SF00531

LOGIC DIAGRAM

74F863

OEAB0

OEAB1

OEBA0

OEBA1

SF00532

INPUT AND OUTPUT LOADING AND FAN-OUT TABLE

PINS

DESCRIPTION

74F(U.L.)

HIGH/LOW

LOAD VALUE

HIGH/LOW

A0 – A9

Data transmit inputs

3.5/0.117

µA/70µA

B0 – B9

Data receive inputs

3.5/0.117

µA/70µA

74F862

OEBA

Transmit output enable input

1.0/0.033

µA/20µA

74F862

OEAB

Receive output enable input

1.0/0.033

µA/20µA

A0 – A9

Data transmit outputs

1200/106.7

24mA/64mA

B0 – B9

Data receive outputs

1200/106.7

24mA/64mA

A0 – A9

Data transmit inputs

3.5/0.117

µA/70µA

B0 – B9

Data receive inputs

3.5/0.117

µA/70µA

74F863

OEBAn

Transmit output enable input

1.0/0.033

µA/20µA

74F863

OEABn

Receive output enable input

1.0/0.033

µA/20µA

A0 – A9

Data transmit outputs

1200/106.7

24mA/64mA

B0 – B9

Data receive outputs

1200/106.7

24mA/64mA

NOTE: One (1.0) FAST Unit Load is defined as: 20

µA in the High state and 0.6mA in the Low state.

FUNCTION TABLE FOR 74F862

INPUTS

OPERATING MODES

OEAB

OEBA

74F862

A data to B bus

B bus to A data

H = High voltage level

= Low voltage level

= High impedance “off” state

FUNCTION TABLE FOR 74F863

INPUTS

OPERATING MODES

OEAB0

OEAB1

OEBA0

OEBA1

74F863

A data to B bus

B bus to A data

H = High voltage level

= Low voltage level

= High impedance “off” state

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