SCPS245C December   2012  – December 2018 TCA9517A

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 I2C Interface Switching Characteristics
    8. 7.8 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Two-Channel Bidirectional Buffer
      2. 9.3.2 Active-High Repeater-Enable Input
      3. 9.3.3 VOL B-Side Offset Voltage
      4. 9.3.4 Standard Mode and Fast Mode Support
      5. 9.3.5 Clock Stretching Support
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Clock Stretching Support
        2. 10.2.2.2 VILC and Pullup Resistor Sizing
      3. 10.2.3 Application Curve
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Receiving Notification of Documentation Updates
    2. 13.2 Community Resource
    3. 13.3 Trademarks
    4. 13.4 Electrostatic Discharge Caution
    5. 13.5 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

7.7 I2C Interface Switching Characteristics

VCCB = 2.7 V to 5.5 V, GND = 0 V, TA = –40°C to 85°C (unless otherwise noted)(1)(4)
PARAMETER FROM
(INPUT)		 TO
(OUTPUT)		 TEST CONDITIONS MIN TYP(5) MAX UNIT
tPLZ Propagation delay SDAB, SCLB(3) (see Figure 6) SDAA, SCLA(3) (see Figure 6) 80 141 350 ns
SDAA, SCLA(2) (see Figure 5) SDAB, SCLB(2) (see Figure 5) 25 74 110
tPZL Propagation delay SDAB, SCLB SDAA, SCLA VCCA ≤ 2.7 V (see Figure 4) 30 76(6) 110 ns
VCCA ≥ 3 V
(see Figure 4)		 10 86 230
SDAA, SCLA(2) (see Figure 5) SDAB, SCLB(2) (see Figure 5) 60 107 230
tTLH Transition time B-side to A side 80% 20% VCCA ≤ 2.7 V
(see Figure 5)		 10 12 15 ns
VCCA ≥ 3 V
(see Figure 5)		 40 42 45
A side to B-side
(see Figure 4)		 110 125 140
tTHL Transition time B-side to A side 80% 20% VCCA ≤ 2.7 V
(see Figure 5)		 1 52(6) 105 ns
VCCA ≥ 3 V
(see Figure 5)		 20 67 175
A side to B-side
(see Figure 4)		 30 48 90
(1) Times are specified with loads of 1.35-kΩ pull-up resistance and 50-pF load capacitance on the B-side and 167-Ω pull-up and 57-pF load capacitance on the A side. Different load resistance and capacitance alter the RC time constant, thereby changing the propagation delay and transition times.
(2) The proportional delay data from A to B-side is measured at 0.3 VCCA on the A side to 1.5 V on the B-side.
(3) The tPLH delay data from B to A side is measured at 0.4 V on the B-side to 0.5 VCCA on the A side when VCCA is less than 2 V, and 1.5 V on the A side if VCCA is greater than 2 V.
(4) pull-up voltages are VCCA on the A side and VCCB on the B-side.
(5) Typical values were measured with VCCA = VCCB = 3.3 V at TA = 25°C, unless otherwise noted.
(6) Typical value measured with VCCA = 2.7 V at TA = 25°C