Product Summary

The SN74CBTLV3257DR is a low-voltage 24-bit FET bus-exchange switch. It provides 24 bits of high-speed bus switching or exchanging. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The SN74CBTLV3257DR operates as a 24-bit bus switch or a 12-bit bus exchanger, which provides data exchanging between the four signal ports via the data-select (S0, S1, S2) terminals. It is specified by the break-before-make feature to have no through current when switching between B ports. The SN74CBTLV3257DR is characterized for operation from –40 to 85℃.

Parametrics

SN74CBTLV3257DR absolute maximum ratings: (1)Supply voltage range, VCC: –0.5V to 4.6V; (2)Input voltage range, VI: -0.5V to 4.6V; (3)Continuous channel current: 128mA; (4)Input clamp current, IIK (VI < 0): –50mA; (5)Package thermal impedance, qJA: DGG package: 81℃/W; DGV package: 86℃/W; DL package: 74℃/W; (6)Storage temperature range, Tstg:-65 to 150℃.

Features

SN74CBTLV3257DR features: (1)4Ω Switch Connection Between Two Ports; (2)Isolation Under Power-Off Conditions; (3)Break-Before-Make Feature; (4)ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0); (5)Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II; (6)Package Options Include Plastic Thin Shrink Small-Outline (DGG), Thin Very Small-Outline (DGV), and 300-mil Shrink Small-Outline (DL) Packages.

Diagrams

SN74CBTLV3257DR block diagram

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