IDTQS3251 HIGH-SPEED CMOS QUICKSWITCH 8:1 MUX/DEMUX INDUSTRIAL TEMPERATURE RANGE IDTQS3251 QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH 8:1 MUX/DEMUX FEATURES: DESCRIPTION: Enhanced N channel FET with no inherent diode to Vcc The QS3251 is a high-speed CMOS TTL-compatible 8:1 multiplexer/ 5 bidirectional switches connect inputs to outputs demultiplexer. The QS3251 has 3-state outputs. The QS3251 is a function Pin compatible with the 74F251, 74FCT251, and 74FCT251T and pinout compatible version of the 74F251, 74FCT251 and the 74ALS/ Zero propagation delay, zero ground bounce AS/LS251 8:1 multiplexers. The low ON resistance of the QS3251 allows Undershoot clamp diodes on all switch and control inputs inputs to be connected to outputs without adding propagation delay and TTL-compatible control inputs without generating additional ground bounce noise. Available in SOIC and QSOP packages Mux/Demux devices provide an order of magnitude faster speed than equivalent logic devices. The QS3251 is characterized for operation at -40C to +85C. APPLICATIONS: Logic replacement Video, audio, graphics switching, muxing Hot-swapping, hot-docking Voltage translation (5V to 3.3V) FUNCTIONAL BLOCK DIAGRAM S0 S1 S2 E I0 I1 I2 I3 Y I4 I5 I6 I7 INDUSTRIAL TEMPERATURE RANGE FEBRUARY 2011 1 c 2011 Integrated Device Technology, Inc. DSC-5754/5IDTQS3251 HIGH-SPEED CMOS QUICKSWITCH 8:1 MUX/DEMUX INDUSTRIAL TEMPERATURE RANGE (1) PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS Symbol Description Max Unit (2) VTERM Supply Voltage to Ground 0.5 to +7 V (3) VTERM DC Switch Voltage Vs 0.5 to +7 V (3) VTERM DC Input Voltage VIN 0.5 to +7 V I3 VCC 1 16 VAC AC Input Voltage (pulse width 20ns) 3 V IOUT DC Output Current 120 mA I2 2 15 I4 PMAX Maximum Power Dissipation (TA = 85C) 0.5 W 3 14 I5 TSTG Storage Temperature 65 to +150 C I1 NOTE: I0 I6 4 13 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational Y I7 5 12 sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. NC 6 11 S0 2. Vcc terminals. 3. All terminals except Vcc. S1 E 7 10 S2 GND 8 9 CAPACITANCE (TA = +25C, f = 1MHz, VIN = 0V, VOUT = 0V) (1) Pins Typ. Max. Unit Control Inputs 4 5 pF Quickswitch Channels Demux 5 7 pF SOIC/ QSOP (Switch OFF) Mux 21 23 TOP VIEW NOTE: 1. This parameter is guaranteed but not production tested. (1) FUNCTION TABLE PIN DESCRIPTION Select Pin Names I/O Description E S2 S1 S0 Y Function I0 - I7 I Data Inputs H X X X Hi-Z Disable S0 - S2 I Select Inputs LL L L I0 S2 - S 0 = 0 E I Enable Input LL L H I1 S2 - S 0 = 1 Y O Data Output LL H L I2 S2 - S 0 = 2 LL H H I3 S2 - S 0 = 3 LH L L I4 S2 - S 0 = 4 LH L H I5 S2 - S 0 = 5 LH H L I6 S2 - S 0 = 6 LH H H I7 S2 - S 0 = 7 NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Dont Care Z = High-Impedence 2