ZHCSA11G May   2012  – November 2019 TCA9548A

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化应用示意图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin 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 I2C Interface Timing Requirements
    7. 6.7 Reset Timing Requirements
    8. 6.8 Switching Characteristics
    9. 6.9 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
      1. 8.4.1 RESET Input
      2. 8.4.2 Power-On Reset
    5. 8.5 Programming
      1. 8.5.1 I2C Interface
      2. 8.5.2 Device Address
      3. 8.5.3 Bus Transactions
        1. 8.5.3.1 Writes
        2. 8.5.3.2 Reads
      4. 8.5.4 Control Register
      5. 8.5.5 RESET Input
      6. 8.5.6 Power-On Reset
  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 Curves
  10. 10Power Supply Recommendations
    1. 10.1 Power-On Reset Requirements
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 文档支持
      1. 12.1.1 相关文档
    2. 12.2 接收文档更新通知
    3. 12.3 支持资源
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 Glossary
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.5 Electrical Characteristics(2)

VCC = 1.65 V to 5.5 V, over recommended operating free-air temperature ranges supported by Recommended Operating Conditions (unless otherwise noted)
PARAMETER TEST CONDITIONS VCC MIN TYP(1) MAX UNIT
VPORR Power-on reset voltage, VCC rising No load, VI = VCC or GND(5) 1.2 1.5 V
VPORF Power-on reset voltage, VCC falling(3) No load, VI = VCC or GND(5) 0.8 1 V
Vo(sw) Switch output voltage Vi(sw) = VCC, ISWout = –100 μA 5 V 3.6 V
4.5 V to 5.5 V 2.6 4.5
3.3 V 1.9
3 V to 3.6 V 1.6 2.8
2.5 V 1.5
2.3 V to 2.7 V 1.1 2
1.8 V 1.1
1.65 V to 1.95 V 0.6 1.25
IOL SDA VOL = 0.4 V 1.65 V to 5.5 V 3 6 mA
VOL = 0.6 V 6 9
II SCL, SDA VI = VCC or GND(5) 1.65 V to 5.5 V –1 1 μA
SC7–SC0, SD7–SD0 –1 1
A2–A0 –1 1
RESET –1 1
ICC Operating mode fSCL = 400 kHz VI = VCC or GND(5), IO = 0 5.5 V 50 80 μA
3.6 V 20 35
2.7 V 11 20
1.65 V 6 10
fSCL = 100 kHz VI = VCC or GND(5), IO = 0 5.5 V 9 30
3.6 V 6 15
2.7 V 4 8
1.65 V 2 4
Standby mode Low inputs VI = GND(5), IO = 0, -40 ℃ ≤ TA ≤ 85 ℃ 5.5 V 0.2 2
3.6 V 0.1 2
2.7 V 0.1 1
1.65 V 0.1 1
High inputs VI = VCC, IO = 0, -40 ℃ ≤ TA ≤ 85 ℃ 5.5 V 0.2 2
3.6 V 0.1 2
2.7 V 0.1 1
1.65 V 0.1 1
Low and High Inputs VI = VCC or GND, IO = 0, 85 ℃ < TA ≤ 125 ℃ 3.6 V 1 2
2.7 V 0.7 1.5
1.65 V 0.4 1
ΔICC Supply-current change SCL, SDA SCL or SDA input at 0.6 V,
Other inputs at VCC or GND(5) 		1.65 V to 5.5 V 3 20 μA
SCL or SDA input at VCC – 0.6 V,
Other inputs at VCC or GND(5) 		3 20
Ci A2–A0 VI = VCC or GND(5) 1.65 V to 5.5 V 4 5 pF
RESET 4 5
SCL VI = VCC or GND(5), Switch OFF 20 28
Cio(off)(4) SDA VI = VCC or GND(5), Switch OFF 1.65 V to 5.5 V 20 28 pF
SC7–SC0, SD7–SD0 5.5 7.5
RON Switch-on resistance VO = 0.4 V, IO = 15 mA 4.5 V to 5.5 V 4 10 20 Ω
3 V to 3.6 V 5 12 30
VO = 0.4 V, IO = 10 mA 2.3 V to 2.7 V 7 15 45
1.65 V to 1.95 V 10 25 70
(1) All typical values are at nominal supply voltage (1.8-, 2.5-, 3.3-, or 5-V VCC), TA = 25°C.
(2) For operation between specified voltage ranges, refer to the worst-case parameter in both applicable ranges.
(3) The power-on reset circuit resets the I2C bus logic with VCC < VPORF.
(4) Cio(ON) depends on internal capacitance and external capacitance added to the SCn lines when channels(s) are ON.
(5) RESET = VCC (held high) when all other input voltages, VI = GND.