SN74CBT3257

SN74CBT3257 4-BIT 1-OF-2 FET MULTIPLEXER/DEMULTIPLEXER D 5-Ω Switch Connection Between Two Ports D, DB, DBQ, OR PW PACKAGE (TOP VIEW) S1 1B1 2 1B2 3 1A 4 2B1 5 2B2 6 2A 7 GND 8 16 VCC 15 OE 14 4B1 13 4B2 12 4A 11 3B1 10 3B2 9 3A SCDS017M − MAY 1995 − REVISED JANUARY 2004 D TTL-Compatible Input Levels RGY PACKAGE (TOP VIEW) VCC S 1 1B1 2 1B2 3 1A 4 2B1 5 2B2 6 2A 7 8 16 15 OE 14 4B1 13 4B2 12 4A 11 3B1 10 3B2 9 3A GND description/ordering information The SN74CBT3257 is a 4-bit 1-of-2 high-speed TTL-compatible FET multiplexer/demultiplexer. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. Output-enable (OE) and select-control (S) inputs select the appropriate B1 and B2 outputs for the A-input data. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING QFN − RGY Tape and reel SN74CBT3257RGYR CU257 SOIC − D Tube Tape and reel SN74CBT3257D SN74CBT3257DR CBT3257 −40°C to 85°C SSOP − DB Tape and reel SSOP (QSOP) − DBQ Tape and reel SN74CBT3257DBR CU257 SN74CBT3257DBQR CU257 TSSOP − PW Tube Tape and reel SN74CBT3257PW SN74CBT3257PWR CU257 † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE INPUTS OE S FUNCTION L L A port = B1 port L H A port = B2 port H X Disconnect Please be aware that an important notice concerning availability, standard warranty, and use in cr...