74FR25900 Datasheet 9-Bit / 3-Port Latchable Datapath Multiplexer

Manufacturer: Fairchild (now onsemi)

74FR25900 9-bit / 3-port latchable datapath multiplexer by Fairchild (now onsemi) - Datasheet Preview

Datasheet Details

Part number	74FR25900
Manufacturer	Fairchild (now onsemi)
File Size	49.57 KB
Description	9-Bit / 3-Port Latchable Datapath Multiplexer
Download	74FR25900 Download (PDF)

General Description

The 74FR25900 is a data bus multiplexer routing any of three 9-bit ports to any other one of the three ports.

Readback of data latched from any port onto itself is also possible.

The 74FR25900 maintains separate control of all latchenable, output enable and select inputs for maximum flexibility.

Overview

74FR25900 9-Bit, 3-Port Latchable Datapath Multiplexer July 1992 Revised August 1999 74FR25900 9-Bit, 3-Port Latchable Datapath Multiplexer with 25Ω Output Series.

Key Features

s 25Ω series resistors in the port A and B outputs eliminate the need for external resistors when driving MOS inputs such as DRAM arrays s 9-bit data ports for systems carrying parity bits s Readback capability for system self checks. s Independent control lines for maximum flexibility s Guaranteed multiple output switching and 250 pF load delays s Outputs optimized for dynamic bus drive capability s PINV parity control facilitates system diagnostics s 74FR900 option available without output ser.

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