SCES917B December   2019  – March 2021 SN74LXCH8T245

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics
    6. 6.6  Switching Characteristics, VCCA = 1.2 ± 0.1 V
    7. 6.7  Switching Characteristics, VCCA = 1.5 ± 0.1 V
    8. 6.8  Switching Characteristics, VCCA = 1.8 ± 0.15 V
    9. 6.9  Switching Characteristics, VCCA = 2.5 ± 0.2 V
    10. 6.10 Switching Characteristics, VCCA = 3.3 ± 0.3 V
    11. 6.11 Switching Characteristics, VCCA = 5.0 ± 0.5 V
    12. 6.12 Switching Characteristics: Tsk, TMAX
    13. 6.13 Operating Characteristics
    14. 6.14 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Load Circuit and Voltage Waveforms
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  CMOS Schmitt-Trigger Inputs with Integrated Pulldowns
        1. 8.3.1.1 Control Inputs with Integrated Static Pull-Down Resistors
      2. 8.3.2  Balanced High-Drive CMOS Push-Pull Outputs
      3. 8.3.3  Partial Power Down (Ioff)
      4. 8.3.4  VCC Isolation and VCC Disconnect
      5. 8.3.5  Over-Voltage Tolerant Inputs
      6. 8.3.6  Glitch-Free Power Supply Sequencing
      7. 8.3.7  Negative Clamping Diodes
      8. 8.3.8  Fully Configurable Dual-Rail Design
      9. 8.3.9  Supports High-Speed Translation
      10. 8.3.10 Bus-Hold Data Inputs
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

5 Pin Configuration and Functions

GUID-94F1890B-65FB-4149-9E66-91541CCAADA7-low.gif
All packages are on the same relative scale.
Figure 5-1 PW, and RHL Package 24-Pin TSSOP, and VQFN Transparent Top View
Table 5-1 Pin Functions
PIN I/O DESCRIPTION
NAME PW, RHL
A1 3 I/O Input or output A1. Referenced to VCCA.
A2 4 I/O Input or output A2. Referenced to VCCA.
A3 5 I/O Input or output A3. Referenced to VCCA.
A4 6 I/O Input or output A4. Referenced to VCCA.
A5 7 I/O Input or output A5. Referenced to VCCA.
A6 8 I/O Input or output A6. Referenced to VCCA.
A7 9 I/O Input or output A7. Referenced to VCCA.
A8 10 I/O Input or output A8. Referenced to VCCA.
B1 21 I/O Input or output B1. Referenced to VCCB.
B2 20 I/O Input or output B2. Referenced to VCCB.
B3 19 I/O Input or output B3. Referenced to VCCB.
B4 18 I/O Input or output B4. Referenced to VCCB.
B5 17 I/O Input or output B5. Referenced to VCCB.
B6 16 I/O Input or output B6. Referenced to VCCB.
B7 15 I/O Input or output B7. Referenced to VCCB.
B8 14 I/O Input or output B8. Referenced to VCCB.
DIR 2 I Direction-control signal for all ports. Referenced to VCCA.
GND 11 — Ground.
12 — Ground.
13 — Ground.
OE 22 I Output Enable. Pull to GND to enable all outputs. Pull to VCCA to place all outputs in high-impedance mode. Referenced to VCCA.
VCCA 1 — A-port supply voltage. 1.1 V ≤ VCCA ≤ 5.5 V.
VCCB 23 — B-port supply voltage. 1.1 V ≤ VCCB ≤ 5.5 V.
24 — B-port supply voltage. 1.1 V ≤ VCCB ≤ 5.5 V.
PAD — — Thermal pad. May be grounded (recommended) or left floating.