SN74CB3T3383PW

Overview

The SN74CB3T3383PW is a high-speed TTL-compatible FET bus-exchange switch manufactured by Texas Instruments. It operates within a VCC range of 2.3 V to 3.6 V and supports mixed-mode signal operation on all data I/O ports, enabling voltage translation that tracks VCC. The device features 5-V-tolerant I/Os, bidirectional data flow with near-zero propagation delay, and low ON-state resistance (ron) characteristics. It includes undershoot clamp diodes for data and control inputs, ensuring robust performance in portable equipment applications.

Feature Summary

• Supports mixed-mode signal operation with voltage translation tracking VCC
• Provides 5-V-tolerant I/Os compatible with powered-up or powered-down states
• Enables partial-power-down mode operation via Ioff feature
• Features bidirectional data flow with low ON-state resistance

Applications

• Level translation between different logic families
• Memory interleaving systems
• Bus isolation circuits

Procurement Notes

Verify the specific ordering suffix 'PW' corresponds to the TSSOP-24 tube package configuration. Confirm RoHS compliance status and lead finish details against the latest TI Package Option Addendum. Ensure the operating temperature range meets system requirements of -40°C to 85°C. Check for any recent lifecycle status changes or alternative package options if tube quantities are not suitable for production needs.

Selection Notes

Select this component when designing systems requiring simultaneous support for 5-V, 3.3-V, and 2.5-V signaling standards. The device is suitable for applications needing voltage translation without external level shifters. Consider the low input/output capacitance for minimizing loading effects in high-speed digital interfaces. Ensure control inputs are driven by TTL or 5-V/3.3-V CMOS outputs for proper functionality.

Part Context

This part belongs to the SN74CB3T3383 family of bus-exchange switches. It is distinct from standard bus switches by its ability to exchange data between four signal ports using BE and BX control inputs. The PW suffix indicates a TSSOP package, differing from SOIC (DW), SSOP (DBQ), or TVSOP (DGV) variants which share similar electrical characteristics but differ in physical dimensions and thermal properties.

Replacement Considerations

SN74CB3T3383PWRG4 offers identical electrical specifications in a tape-and-reel format. SN74CBTLV3383 series devices provide similar functionality but may have different pinouts or electrical parameters; verify datasheet compatibility before substitution.