Texas Instruments SN74CB3T3384 Data Sheet
Summary
The SN74CB3T3384 is a high-speed, TTL-compatible FET bus switch designed for complex digital systems needing reliable signal integrity. It supports mixed-mode operation and provides robust voltage translation across 2.5V, 3.3V, and 5V levels. This manual details its operation as two independent 5-bit switches or a single 10-bit bus, highlighting features like low ON-state resistance, partial-power-down mode with isolation, and minimal power consumption. Ideal for engineers developing portable equipment requiring precise data level shifting and robust high-speed interconnections.
Page 1 Text Content
查询74CB3T3384DBQRE4供应商
SCDS159B − OCTOBER 2003 − REVISED MARCH 2004
Output Voltage Translation Tracks VCC VCC Operating Range From 2.3 V to 3.6 V Supports Mixed-Mode Signal Operation On Data I/Os Support 0 to 5-V Signaling Levels All Data I/O Ports (For Example: 0.8-V, 1.2-V, 1.5-V, 1.8-V, − 5-V Input Down To 3.3-V Output Level 2.5-V, 3.3-V, 5-V) Shift With 3.3-V VCC
Control Inputs Can Be Driven by TTL or
− 5-V/3.3-V Input Down To 2.5-V Output
5-V/3.3-V/2.5-V CMOS Outputs
Level Shift With 2.5-V VCC
Ioff Supports Partial-Power-Down Mode
5-V-Tolerant I/Os With Device Powered-Up
Operation
or Powered-Down
Latch-Up Performance Exceeds 250 m A Per
Bidirectional Data Flow, With Near-Zero
JESD 17
Propagation Delay
ESD Performance Tested Per JESD 22
Low ON-State Resistance (ron)
− 2000-V Human-Body Model
Characteristics (ron = 5 Ω Typical)
(A114-B, Class II)
Low Input/Output Capacitance Minimizes − 1000-V Charged-Device Model (C101) Loading (Cio(OFF) = 5 p F Typical)
Supports Digital Applications: Level
Data and Control Inputs Provide Translation, Memory Interleaving, Bus Undershoot Clamp Diodes Isolation Low Power Consumption Ideal for Low-Power Portable Equipment (ICC = 40 µA Max)
DBQ, DGV, DW, OR PW PACKAGE
(TOP VIEW)
1OE VCC
1B1 2B5 1A1 2A5 1A2 2A4 1B2 2B4 1B3 2B3 1A3 2A3 1A4 2A2 1B4 2B2 1B5 2B1 1A5 2A1 GND 2OE
description/ordering information
ORDERING INFORMATION
ORDERABLE TOP-SIDE
TA PACKAGE†
PART NUMBER MARKING
Tube SN74CB3T3384DW
SOIC − DW CB3T3384
Tape and reel SN74CB3T3384DWR
SSOP (QSOP) − DBQ Tape and reel SN74CB3T3384DBQR CB3T3384
−40°C to 85°C
Tube SN74CB3T3384PW
TSSOP − PW KS384
Tape and reel SN74CB3T3384PWR
TVSOP − DGV Tape and reel SN74CB3T3384DGVR
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Page Summary Contents For Texas Instruments SN74CB3T3384 Data Sheet
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 15 |
| File Size | 336.65 KB |
| Published | June 18, 2026 |
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Frequently Asked Questions
What voltage range does the device operate within?
The operating voltage range is from 2.3 V to 3.6 V (VCC).
Does it support various signal standards?
Yes, it supports TTL (5-V), LVTTL (3.3-V), and CMOS (2.5-V) switching standards.
How can I ensure the high-impedance state when powering down?
To achieve a high-impedance state during power up or power down, tie the OE input to V through a pullup resistor.
Can it be used as multiple smaller switches?
The SN74CB3T3384 is organized as two 5-bit bus switches, meaning it can operate as two separate switches or one 10-bit switch.