Product Summary

The SN74CBTLV3257DBQR is a 4-bit 1-of-2 high-speed FET multiplexer/demultiplexer. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The select (S) input controls the data flow. The FET multiplexers/demultiplexers are disabled when the output-enable (OE) input is high. The SN74CBTLV3257DBQR is fully specified for partial-power-down applications using Ioff. The Ioff feature ensures that damaging current will not backflow through the device when it is powered down. The SN74CBTLV3257DBQR has isolation during power off. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Parametrics

SN74CBTLV3257DBQR absolute maximum ratings: (1)Supply voltage range, VCC: -0.5 V to 4.6 V; (2)Input voltage range, VI: -0.5 V to 4.6 V; (3)Continuous channel current: 128 mA; (4)Input clamp current, IIK (VI/O < 0): -50 mA; (5)Package thermal impedance, θJA (see Note 2): D package: 73℃/W; (see Note 2): DBQ package: 90℃/W; (6)Storage temperature range, Tstg: -65℃ to 150℃.

Features

SN74CBTLV3257DBQR features: (1)5-Ω Switch Connection Between Two Ports; (2)Rail-to-Rail Switching on Data I/O Ports; (3)Ioff Supports Partial-Power-Down Mode Operation; (4)Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II; (5)ESD Protection Exceeds JESD 22.

Diagrams

SN74CBTLV3257DBQR diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
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SN74CBTLV3257DBQR
SN74CBTLV3257DBQR

Texas Instruments

Multiplexer Switch ICs LV 4-Bit 1-of-2 FET

Data Sheet

0-1: $0.43
1-25: $0.33
25-100: $0.30
100-250: $0.26
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
SN7400
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1-25: $0.71
25-100: $0.62
100-250: $0.55
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