ue of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA -40C to 85C Tape and reel SN74CB3Q3253RGYR BU253 SSOP (QSOP) - DBQ Tape and reel SN74CB3Q3253DBQR BU253 Tube SN74CB3Q3253PW Tape and reel SN74CB3Q3253PWR Tape and reel SN74CB3Q3253DGVR TSSOP - PW BU253 BU253 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (EACH MULTIPLEXER/DEMULTIPLEXER) INPUTS 2 TOP-SIDE MARKING QFN - RGY TVSOP - DGV (1) ORDERABLE PART NUMBER OE S1 L L INPUT/OUTPUT FUNCTION S0 A L L B1 A port = B1 port L H B2 A port = B2 port L H L B3 A port = B3 port L H H B4 A port = B4 port H X X Z Disconnect SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH www.ti.com SCDS145A - OCTOBER 2003 - REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 7 6 1A SW 5 SW 1B1 1B2 4 SW 1B3 3 1B4 SW 9 10 2A 2B1 SW 11 SW 2B2 12 2B3

ue of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA -40C to 85C Tape and reel SN74CB3Q3253RGYR BU253 SSOP (QSOP) - DBQ Tape and reel SN74CB3Q3253DBQR BU253 Tube SN74CB3Q3253PW Tape and reel SN74CB3Q3253PWR Tape and reel SN74CB3Q3253DGVR TSSOP - PW BU253 BU253 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (EACH MULTIPLEXER/DEMULTIPLEXER) INPUTS 2 TOP-SIDE MARKING QFN - RGY TVSOP - DGV (1) ORDERABLE PART NUMBER OE S1 L L INPUT/OUTPUT FUNCTION S0 A L L B1 A port = B1 port L H B2 A port = B2 port L H L B3 A port = B3 port L H H B4 A port = B4 port H X X Z Disconnect SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH www.ti.com SCDS145A - OCTOBER 2003 - REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 7 6 1A SW 5 SW 1B1 1B2 4 SW 1B3 3 1B4 SW 9 10 2A 2B1 SW 11 SW 2B2 12 2B3

ue of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA -40C to 85C Tape and reel SN74CB3Q3253RGYR BU253 SSOP (QSOP) - DBQ Tape and reel SN74CB3Q3253DBQR BU253 Tube SN74CB3Q3253PW Tape and reel SN74CB3Q3253PWR Tape and reel SN74CB3Q3253DGVR TSSOP - PW BU253 BU253 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (EACH MULTIPLEXER/DEMULTIPLEXER) INPUTS 2 TOP-SIDE MARKING QFN - RGY TVSOP - DGV (1) ORDERABLE PART NUMBER OE S1 L L INPUT/OUTPUT FUNCTION S0 A L L B1 A port = B1 port L H B2 A port = B2 port L H L B3 A port = B3 port L H H B4 A port = B4 port H X X Z Disconnect SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH www.ti.com SCDS145A - OCTOBER 2003 - REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 7 6 1A SW 5 SW 1B1 1B2 4 SW 1B3 3 1B4 SW 9 10 2A 2B1 SW 11 SW 2B2 12 2B3

ue of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA -40C to 85C Tape and reel SN74CB3Q3253RGYR BU253 SSOP (QSOP) - DBQ Tape and reel SN74CB3Q3253DBQR BU253 Tube SN74CB3Q3253PW Tape and reel SN74CB3Q3253PWR Tape and reel SN74CB3Q3253DGVR TSSOP - PW BU253 BU253 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (EACH MULTIPLEXER/DEMULTIPLEXER) INPUTS 2 TOP-SIDE MARKING QFN - RGY TVSOP - DGV (1) ORDERABLE PART NUMBER OE S1 L L INPUT/OUTPUT FUNCTION S0 A L L B1 A port = B1 port L H B2 A port = B2 port L H L B3 A port = B3 port L H H B4 A port = B4 port H X X Z Disconnect SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH www.ti.com SCDS145A - OCTOBER 2003 - REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 7 6 1A SW 5 SW 1B1 1B2 4 SW 1B3 3 1B4 SW 9 10 2A 2B1 SW 11 SW 2B2 12 2B3

ue of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA -40C to 85C Tape and reel SN74CB3Q3253RGYR BU253 SSOP (QSOP) - DBQ Tape and reel SN74CB3Q3253DBQR BU253 Tube SN74CB3Q3253PW Tape and reel SN74CB3Q3253PWR Tape and reel SN74CB3Q3253DGVR TSSOP - PW BU253 BU253 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (EACH MULTIPLEXER/DEMULTIPLEXER) INPUTS 2 TOP-SIDE MARKING QFN - RGY TVSOP - DGV (1) ORDERABLE PART NUMBER OE S1 L L INPUT/OUTPUT FUNCTION S0 A L L B1 A port = B1 port L H B2 A port = B2 port L H L B3 A port = B3 port L H H B4 A port = B4 port H X X Z Disconnect SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH www.ti.com SCDS145A - OCTOBER 2003 - REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 7 6 1A SW 5 SW 1B1 1B2 4 SW 1B3 3 1B4 SW 9 10 2A 2B1 SW 11 SW 2B2 12 2B3

ue of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA -40C to 85C Tape and reel SN74CB3Q3253RGYR BU253 SSOP (QSOP) - DBQ Tape and reel SN74CB3Q3253DBQR BU253 Tube SN74CB3Q3253PW Tape and reel SN74CB3Q3253PWR Tape and reel SN74CB3Q3253DGVR TSSOP - PW BU253 BU253 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (EACH MULTIPLEXER/DEMULTIPLEXER) INPUTS 2 TOP-SIDE MARKING QFN - RGY TVSOP - DGV (1) ORDERABLE PART NUMBER OE S1 L L INPUT/OUTPUT FUNCTION S0 A L L B1 A port = B1 port L H B2 A port = B2 port L H L B3 A port = B3 port L H H B4 A port = B4 port H X X Z Disconnect SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH www.ti.com SCDS145A - OCTOBER 2003 - REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 7 6 1A SW 5 SW 1B1 1B2 4 SW 1B3 3 1B4 SW 9 10 2A 2B1 SW 11 SW 2B2 12 2B3

ue of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA -40C to 85C Tape and reel SN74CB3Q3253RGYR BU253 SSOP (QSOP) - DBQ Tape and reel SN74CB3Q3253DBQR BU253 Tube SN74CB3Q3253PW Tape and reel SN74CB3Q3253PWR Tape and reel SN74CB3Q3253DGVR TSSOP - PW BU253 BU253 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (EACH MULTIPLEXER/DEMULTIPLEXER) INPUTS 2 TOP-SIDE MARKING QFN - RGY TVSOP - DGV (1) ORDERABLE PART NUMBER OE S1 L L INPUT/OUTPUT FUNCTION S0 A L L B1 A port = B1 port L H B2 A port = B2 port L H L B3 A port = B3 port L H H B4 A port = B4 port H X X Z Disconnect SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH www.ti.com SCDS145A - OCTOBER 2003 - REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 7 6 1A SW 5 SW 1B1 1B2 4 SW 1B3 3 1B4 SW 9 10 2A 2B1 SW 11 SW 2B2 12 2B3

ue of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA -40C to 85C Tape and reel SN74CB3Q3253RGYR BU253 SSOP (QSOP) - DBQ Tape and reel SN74CB3Q3253DBQR BU253 Tube SN74CB3Q3253PW Tape and reel SN74CB3Q3253PWR Tape and reel SN74CB3Q3253DGVR TSSOP - PW BU253 BU253 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (EACH MULTIPLEXER/DEMULTIPLEXER) INPUTS 2 TOP-SIDE MARKING QFN - RGY TVSOP - DGV (1) ORDERABLE PART NUMBER OE S1 L L INPUT/OUTPUT FUNCTION S0 A L L B1 A port = B1 port L H B2 A port = B2 port L H L B3 A port = B3 port L H H B4 A port = B4 port H X X Z Disconnect SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH www.ti.com SCDS145A - OCTOBER 2003 - REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 7 6 1A SW 5 SW 1B1 1B2 4 SW 1B3 3 1B4 SW 9 10 2A 2B1 SW 11 SW 2B2 12 2B3

ue of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA -40C to 85C Tape and reel SN74CB3Q3253RGYR BU253 SSOP (QSOP) - DBQ Tape and reel SN74CB3Q3253DBQR BU253 Tube SN74CB3Q3253PW Tape and reel SN74CB3Q3253PWR Tape and reel SN74CB3Q3253DGVR TSSOP - PW BU253 BU253 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (EACH MULTIPLEXER/DEMULTIPLEXER) INPUTS 2 TOP-SIDE MARKING QFN - RGY TVSOP - DGV (1) ORDERABLE PART NUMBER OE S1 L L INPUT/OUTPUT FUNCTION S0 A L L B1 A port = B1 port L H B2 A port = B2 port L H L B3 A port = B3 port L H H B4 A port = B4 port H X X Z Disconnect SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH www.ti.com SCDS145A - OCTOBER 2003 - REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 7 6 1A SW 5 SW 1B1 1B2 4 SW 1B3 3 1B4 SW 9 10 2A 2B1 SW 11 SW 2B2 12 2B3

ue of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA -40C to 85C Tape and reel SN74CB3Q3253RGYR BU253 SSOP (QSOP) - DBQ Tape and reel SN74CB3Q3253DBQR BU253 Tube SN74CB3Q3253PW Tape and reel SN74CB3Q3253PWR Tape and reel SN74CB3Q3253DGVR TSSOP - PW BU253 BU253 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (EACH MULTIPLEXER/DEMULTIPLEXER) INPUTS 2 TOP-SIDE MARKING QFN - RGY TVSOP - DGV (1) ORDERABLE PART NUMBER OE S1 L L INPUT/OUTPUT FUNCTION S0 A L L B1 A port = B1 port L H B2 A port = B2 port L H L B3 A port = B3 port L H H B4 A port = B4 port H X X Z Disconnect SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH www.ti.com SCDS145A - OCTOBER 2003 - REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 7 6 1A SW 5 SW 1B1 1B2 4 SW 1B3 3 1B4 SW 9 10 2A 2B1 SW 11 SW 2B2 12 2B3

ue of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA -40C to 85C Tape and reel SN74CB3Q3253RGYR BU253 SSOP (QSOP) - DBQ Tape and reel SN74CB3Q3253DBQR BU253 Tube SN74CB3Q3253PW Tape and reel SN74CB3Q3253PWR Tape and reel SN74CB3Q3253DGVR TSSOP - PW BU253 BU253 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (EACH MULTIPLEXER/DEMULTIPLEXER) INPUTS 2 TOP-SIDE MARKING QFN - RGY TVSOP - DGV (1) ORDERABLE PART NUMBER OE S1 L L INPUT/OUTPUT FUNCTION S0 A L L B1 A port = B1 port L H B2 A port = B2 port L H L B3 A port = B3 port L H H B4 A port = B4 port H X X Z Disconnect SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH www.ti.com SCDS145A - OCTOBER 2003 - REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 7 6 1A SW 5 SW 1B1 1B2 4 SW 1B3 3 1B4 SW 9 10 2A 2B1 SW 11 SW 2B2 12 2B3

ue of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA -40C to 85C Tape and reel SN74CB3Q3253RGYR BU253 SSOP (QSOP) - DBQ Tape and reel SN74CB3Q3253DBQR BU253 Tube SN74CB3Q3253PW Tape and reel SN74CB3Q3253PWR Tape and reel SN74CB3Q3253DGVR TSSOP - PW BU253 BU253 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (EACH MULTIPLEXER/DEMULTIPLEXER) INPUTS 2 TOP-SIDE MARKING QFN - RGY TVSOP - DGV (1) ORDERABLE PART NUMBER OE S1 L L INPUT/OUTPUT FUNCTION S0 A L L B1 A port = B1 port L H B2 A port = B2 port L H L B3 A port = B3 port L H H B4 A port = B4 port H X X Z Disconnect SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH www.ti.com SCDS145A - OCTOBER 2003 - REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 7 6 1A SW 5 SW 1B1 1B2 4 SW 1B3 3 1B4 SW 9 10 2A 2B1 SW 11 SW 2B2 12 2B3

ue of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA -40C to 85C Tape and reel SN74CB3Q3253RGYR BU253 SSOP (QSOP) - DBQ Tape and reel SN74CB3Q3253DBQR BU253 Tube SN74CB3Q3253PW Tape and reel SN74CB3Q3253PWR Tape and reel SN74CB3Q3253DGVR TSSOP - PW BU253 BU253 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (EACH MULTIPLEXER/DEMULTIPLEXER) INPUTS 2 TOP-SIDE MARKING QFN - RGY TVSOP - DGV (1) ORDERABLE PART NUMBER OE S1 L L INPUT/OUTPUT FUNCTION S0 A L L B1 A port = B1 port L H B2 A port = B2 port L H L B3 A port = B3 port L H H B4 A port = B4 port H X X Z Disconnect SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH www.ti.com SCDS145A - OCTOBER 2003 - REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 7 6 1A SW 5 SW 1B1 1B2 4 SW 1B3 3 1B4 SW 9 10 2A 2B1 SW 11 SW 2B2 12 2B3

ue of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA -40C to 85C Tape and reel SN74CB3Q3253RGYR BU253 SSOP (QSOP) - DBQ Tape and reel SN74CB3Q3253DBQR BU253 Tube SN74CB3Q3253PW Tape and reel SN74CB3Q3253PWR Tape and reel SN74CB3Q3253DGVR TSSOP - PW BU253 BU253 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (EACH MULTIPLEXER/DEMULTIPLEXER) INPUTS 2 TOP-SIDE MARKING QFN - RGY TVSOP - DGV (1) ORDERABLE PART NUMBER OE S1 L L INPUT/OUTPUT FUNCTION S0 A L L B1 A port = B1 port L H B2 A port = B2 port L H L B3 A port = B3 port L H H B4 A port = B4 port H X X Z Disconnect SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH www.ti.com SCDS145A - OCTOBER 2003 - REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 7 6 1A SW 5 SW 1B1 1B2 4 SW 1B3 3 1B4 SW 9 10 2A 2B1 SW 11 SW 2B2 12 2B3

ue of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA -40C to 85C Tape and reel SN74CB3Q3253RGYR BU253 SSOP (QSOP) - DBQ Tape and reel SN74CB3Q3253DBQR BU253 Tube SN74CB3Q3253PW Tape and reel SN74CB3Q3253PWR Tape and reel SN74CB3Q3253DGVR TSSOP - PW BU253 BU253 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (EACH MULTIPLEXER/DEMULTIPLEXER) INPUTS 2 TOP-SIDE MARKING QFN - RGY TVSOP - DGV (1) ORDERABLE PART NUMBER OE S1 L L INPUT/OUTPUT FUNCTION S0 A L L B1 A port = B1 port L H B2 A port = B2 port L H L B3 A port = B3 port L H H B4 A port = B4 port H X X Z Disconnect SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH www.ti.com SCDS145A - OCTOBER 2003 - REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 7 6 1A SW 5 SW 1B1 1B2 4 SW 1B3 3 1B4 SW 9 10 2A 2B1 SW 11 SW 2B2 12 2B3