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74F757

Buffer (Open Collector)

Philips Electronics 

Philips Semiconductors

Buffers

Product specification

74F756/74F757/74F760

74F756 Octal Inverter Buffer (Open Collector)

74F757 Octal Buffer (Open Collector)

74F760 Octal Buffer (Open Collector)

FEATURES

• Octal bus interface

• Open collector versions of 74F240, 74F241 and 74F244

DESCRIPTION

The 74F756, 74F757 and 74F760 are octal buffers that are ideal for

driving bus lines of buffer memory address registers. The 74F756 is

the open collector version of 74F240, 74F757 is the open collector

version of 74F241 and 74760 is the open collector version of

74F244. These devices feature two Output Enables. OEa and OEb

(or OEb for the 74F757), each controlling four of the outputs.

TYPE

74F756

74F757

74F760

TYPICAL

PROPAGATION DELAY

9.0ns

9.0ns

9.0ns

TYPICAL SUPPLY

CURRENT (TOTAL)

40mA

45mA

45mA

ORDERING INFORMATION

DESCRIPTION

20–pin plastic DIP

20–pin plastic SOL

ORDER CODE

COMMERCIAL RANGE

VCC = 5V ±10%, Tamb = 0°C to +70°C

N74F756N, N74F757AN, N74F760N

N74F756D, N74F757AD, N74F760D

PKG DWG #

SOT146-1

SOT163-1

INPUT AND OUTPUT LOADING AND FAN OUT TABLE

PINS

DESCRIPTION

Ian, Ibn

Data inputs

OEa, OEb

Output enable input (active Low)

OEb

Output enable input (active High 74F757)

Yan, Ybn

Data outputs (74F757, 74F760)

Yan, Ybn

Data outputs (74F756)

Notes:

One (1.0) FAST unit load is defined as: 20µA in the high state and 0.6mA in the Low state.

OC=Open Collector

74F (U.L.)

HIGH/LOW

1.0/1.67

1.0/1.67

1.0/1.67

OC/106.7

OC/106.7

LOAD VALUE

HIGH/LOW

20µA/1.0mA

20µA/0.2mA

20µA/1.0mA

OC/64mA

OC/64mA

1989 Nov 27

2

853–0270 98220

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