74CBTLV3257 LOW-VOLTAGE QUAD 2:1 MUX/DEMUX BUS SWITCH INDUSTRIAL TEMPERATURE RANGE 74CBTLV3257 LOW-VOLTAGE QUAD 2:1MUX/DEMUX BUS SWITCH FEATURES: DESCRIPTION: Functionally equivalent to QS3257 The CBTLV3257 is a quad 2:1 multiplexer/demultiplexer. The low on- 5 bi-directional switch connection between two ports state resistance of the switch allows connections to be made with minimal Isolation under power-off conditions propagation delay. Over-voltage tolerant The select (S) input controls the data flow. The multiplexers/demultiplexers Latch-up performance exceeds 100mA are enabled when the output-enable (OE) input is low. VCC = 2.3V - 3.6V, Normal Range To ensure the high-impedance state during power up or power down, ESD > 2000V per MIL-STD-883, Method 3015 OE should be tied to VCC through a pullup resistor the minimum value of > 200V using machine model (C = 200pF, R = 0) the resistor is determined by the current-sinking capability of the driver. Available in QSOP and TSSOP packages APPLICATIONS: 3.3V High Speed Bus Switching, Multiplexing, and Bus Isolation FUNCTIONAL BLOCK DIAGRAM SIMPLIFIED SCHEMATIC, EACH SWITCH 1A SW 1B1 SW 1B2 2A 2B1 SW A B SW 2B2 3A SW 3B1 3B2 SW SW 4B1 4A FROM ENABLE CIRCUITRY SW 4B2 S OE INDUSTRIAL TEMPERATURE RANGE MAY 2019 1 2019 Integrated Device Technology, Inc. DSC-5744/674CBTLV3257 LOW-VOLTAGE QUAD 2:1 MUX/DEMUX BUS SWITCH INDUSTRIAL TEMPERATURE RANGE (1) PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS Symbol Description Max Unit VCC SupplyVoltage Range 0.5 to +4.6 V S 1 16 VCC VI Input Voltage Range 0.5 to +4.6 V 1B1 2 15 OE Continuous Channel Current 128 mA IIK Input Clamp Current, VI/O < 0 50 mA 1B2 314 4B1 TSTG Storage Temperature 65 to +150 C 1A 413 4B2 NOTE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause 2B1 512 4A 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 2B2 6 11 3B1 sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2A 7 10 3B2 GND 8 9 3A TOP VIEW Package Type Package Code Order Code (1) FUNCTION TABLE TSSOP PGG16 PGG Inputs QSOP PCG16 QG OE S Function L L A Port = B1 Port L H A Port = B2 Port H X Disconnect NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don t Care (1) OPERATING CHARACTERISTICS, TA = 25C Symbol Parameter Test Conditions Min. Max. Unit VCC Supply Voltage 2.3 3.6 V VIH High-Level Control Input Voltage VCC = 2.3V to 2.7V 1.7 V VCC = 2.7V to 3.6V 2 VIL Low-Level Control Input Voltage VCC = 2.3V to 2.7V 0.7 V VCC = 2.7V to 3.6V 0.8 TA Operating Free-Air Temperature 40 85 C NOTE: 1. All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. 2