SCES980A December   2024  – February 2025 TXB0108-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  Handling Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Electrical Characteristics
    6. 5.6  Timing Requirements: VCCA = 1.2V
    7. 5.7  Timing Requirements: VCCA = 1.5V ± 0.1V
    8. 5.8  Timing Requirements: VCCA = 1.8V ± 0.15V
    9. 5.9  Timing Requirements: VCCA = 2.5V ± 0.2V
    10. 5.10 Timing Requirements: VCCA = 3.3V ± 0.3V
    11. 5.11 Switching Characteristics: VCCA = 1.2V
    12. 5.12 Switching Characteristics: VCCA = 1.5V ± 0.1V
    13. 5.13 Switching Characteristics: VCCA = 1.8V ± 0.15V
    14. 5.14 Switching Characteristics: VCCA = 2.5V ± 0.2V
    15. 5.15 Switching Characteristics: VCCA = 3.3V ± 0.3V
    16. 5.16 Operating Characteristics
    17. 5.17 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Architecture
      2. 7.3.2 Input Driver Requirements
      3. 7.3.3 Output Load Considerations
      4. 7.3.4 Enable and Disable
      5. 7.3.5 Pullup or Pulldown Resistors on I/O Lines
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
  10. 9 Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

4 Pin Configuration and Functions

TXB0108-Q1 PW Package (Top View)Figure 4-1 PW Package (Top View)
A. For the RKS package, the exposed center thermal pad must be connected to ground.
B. Pullup resistors are not required on both sides for Logic I/O.
C. If pullup or pulldown resistors are needed, the resistor value must be over 50kΩ.
D. 50 kΩ is a safe recommended value, if the customer can accept higher VOL or lower VOH, smaller pullup or pulldown resistor is allowed, the draft estimation is VOL = VCCOUT × 4.5 k/(4.5 k + RPU) and VOH = VCCOUT × RDW/(4.5 k + RDW).
E. If pullup resistors are needed, please refer to the TXS0108 or contact TI.
F. For detailed information, please refer A Guide to Voltage Translation With TXB-Type Translators.
TXB0108-Q1 RKS Package (Top View)Figure 4-2 RKS Package (Top View)
Table 4-1 Pin Functions
PINI/O(1)FUNCTION
SIGNAL
NAME		PW, RGY NO.DQS NO.YZP
GRID LOCATOR
A111A3I/OInput/output 1. Referenced to VCCA.
VCCA25C4SA-port supply voltage. 1.1 V ≤ VCCA ≤ 3.6 V, VCCA ≤ VCCB.
A232A4I/OInput/output 2. Referenced to VCCA.
A343B3I/OInput/output 3. Referenced to VCCA.
A454B4I/OInput/output 4. Referenced to VCCA.
A567C3I/OInput/output 5. Referenced to VCCA.
A678E4I/OInput/output 6. Referenced to VCCA.
A789D3I/OInput/output 7. Referenced to VCCA.
A8910E3I/OInput/output 8. Referenced to VCCA.
OE106D4IOutput enable. Pull OE low to place all outputs in 3-state mode. Referenced to VCCA.
GND1115D1SGround
B81211E2I/OInput/output 8. Referenced to VCCB.
B71312D2I/OInput/output 7. Referenced to VCCB.
B61413E1I/OInput/output 6. Referenced to VCCB.
B51514C2I/OInput/output 5. Referenced to VCCB.
B41617B1I/OInput/output 4. Referenced to VCCB.
B31718B2I/OInput/output 3. Referenced to VCCB.
B21819A1I/OInput/output 2. Referenced to VCCB.
VCCB1916C1SB-port supply voltage. 1.65 V ≤ VCCB  ≤ 5.5 V.
B12020A2I/OInput/output 1. Referenced to VCCB.
Thermal Pad——For the RKS package, the exposed center thermal pad must be connected to ground.
(1) I = input, O = output, I/O = input and output, S = power supply