Datasheet

ManualsBrandsFAIRCHILD SEMICONDUCTOR ManualsLogic ICsLogic IC - Multiplexer, demux FET multiplexer/demultiplexer Single supply TSSOP 56

September 1997

Revised November 2000

FST16233 16-Bit to 32-Bit Multiplexer/Demultiplexer Bus Switch

FST16233

16-Bit to 32-Bit Multiplexer/Demultiplexer Bus Switch

General Description

The Fairchild Switch FST16233 is a 16-bit to 32-bit high-

speed CMOS TTL-compatible multiplexer/demultiplexer

bus switch. The low on resistance of the switch allows

inputs to be connected to outputs without adding propaga-

tion delay or generating additional ground bounce noise.

The device can be used in applications where two buses

need to be addressed simultaneously. The FST16233 can

be used as two 8-bit to 16-bit multiplexers or as one 16-bit

to 32-bit multiplexer.

Two select (S

, S

) and two test (TEST

, TEST

) inputs

provide switch enable and multiplexer select control.

The FST16233 is designed to prevent through-current

when switching buses.

Features

■ 4Ω switch connection between two ports.

■ Minimal propagation delay through the switch.

■ Low l

■ Zero bounce in flow-through mode.

■ Control inputs compatible with TTL level.

Ordering Code:

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Logic Diagram

Order Number Package Number Package Description

FST16233MEA MS56A 56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide

FST16233MTD MTD56 56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide

Summary of content (6 pages)

PAGE 1
Revised November 2000 FST16233 16-Bit to 32-Bit Multiplexer/Demultiplexer Bus Switch General Description Features The Fairchild Switch FST16233 is a 16-bit to 32-bit highspeed CMOS TTL-compatible multiplexer/demultiplexer bus switch. The low on resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. ■ 4Ω switch connection between two ports.
PAGE 2
FST16233 Connection Diagram Pin Descriptions Pin Name Description S0 , S1 Select Inputs TEST0, TEST1 Test Inputs A Bus A B1 , B2 Bus B Truth Table Inputs www.fairchildsemi.
PAGE 3
Recommended Operating Conditions (Note 3) Supply Voltage (VCC) −0.5V to +7.0V DC Switch Voltage (VS) −0.5V to +7.0V Power Supply Operating (VCC) DC Input Voltage (VIN) (Note 2) −0.5V to +7.0V Input Voltage (VIN) 0V to 5.5V 0V to 5.5V DC Input Diode Current (lIK) VIN < 0V −50mA Output Voltage (VOUT) DC Output (IOUT) Sink Current 128mA Input Rise and Fall Time (tr, tf) +/− 100mA DC VCC/GND Current (ICC/IGND) Storage Temperature Range (TSTG) 4.0V to 5.
PAGE 4
FST16233 AC Electrical Characteristics TA = −40 °C to +85 °C, Symbol Parameter CL = 50pF, RU= RD = 500Ω VCC = 4.5 − 5.5V Min tPHL, tPLH A or B, to B or A (Note 6) tPHL,tPLH S to A tPZH, tPZL Output Enable Time, S or TEST to B tPHZ, tPLZ Output Disable Time, S or TEST to B VCC = 4.0V Max Min Units Conditions Figure No. Max 0.25 0.25 ns VI = OPEN Figures 1, 2 1.5 6.1 6.8 ns VI = OPEN Figures 1, 2 1.0 6.5 7.2 ns VI = 7V for tPZL, Figures 1, 2 1.5 7.8 8.
PAGE 5
FST16233 Physical Dimensions inches (millimeters) unless otherwise noted 56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide Package Number MS56A 5 www.fairchildsemi.
PAGE 6
FST16233 16-Bit to 32-Bit Multiplexer/Demultiplexer Bus Switch Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Package Number MTD56 Technology Description The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its 74LVX3L384 (FST3384) bus switch product.