ZHCS275D July   2010  – January 2023 TCA6424A

PRODUCTION DATA  

  1. 1 特性
  2. 2 说明
  3. 3 Revision History
  4. 4 Description (continued)
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings (1)
    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
      1. 8.1.1 Voltage Translation
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 I/O Port
      2. 8.3.2 I2C Interface
    4. 8.4 Device Functional Modes
      1. 8.4.1 Device Address
    5. 8.5 Programming
      1. 8.5.1 Power-On Reset
      2. 8.5.2 Reset Input ( RESET)
      3. 8.5.3 Interrupt Output ( INT)
      4. 8.5.4 Bus Transactions
        1. 8.5.4.1 Writes
        2. 8.5.4.2 Reads
    6. 8.6 Register Maps
      1. 8.6.1 Control Register and Command Byte
      2. 8.6.2 Register Descriptions
  9. 9 Application and Implementation
    1. 9.1 Typical Application
      1. 9.1.1 Detailed Design Procedure
        1. 9.1.1.1 Minimizing ICC When I/Os Control LEDs
    2. 9.2 Power Supply Recommendation
  10. 10Device and Documentation Support
    1. 10.1 Receiving Notification of Documentation Updates
    2. 10.2 支持资源
    3. 10.3 商标
    4. 10.4 静电放电警告
    5. 10.5 术语表
      1.      Mechanical, Packaging, and Orderable Information

5 Pin Configuration and Functions

GUID-35CEDD75-3D25-4D1C-A6ED-C61A8F2923EE-low.gif
If used, the exposed center pad must be connected as a secondary ground or left electrically open.
Figure 5-1 RGJ Package
(Bottom View)
Table 5-1 Pin Functions
PINDESCRIPTION
PIN NO.NAME
1P00P-port input/output (push-pull design structure). At power on, P00 is configured as an input.
2P01P-port input/output (push-pull design structure). At power on, P01 is configured as an input.
3P02P-port input/output (push-pull design structure). At power on, P02 is configured as an input.
4P03P-port input/output (push-pull design structure). At power on, P03 is configured as an input.
5P04P-port input/output (push-pull design structure). At power on, P04 is configured as an input.
6P05P-port input/output (push-pull design structure). At power on, P05 is configured as an input.
7P06P-port input/output (push-pull design structure). At power on, P06 is configured as an input.
8P07P-port input/output (push-pull design structure). At power on, P07 is configured as an input.
9P10P-port input/output (push-pull design structure). At power on, P10 is configured as an input.
10P11P-port input/output (push-pull design structure). At power on, P11 is configured as an input.
11P12P-port input/output (push-pull design structure). At power on, P12 is configured as an input.
12P13P-port input/output (push-pull design structure). At power on, P13 is configured as an input.
13P14P-port input/output (push-pull design structure). At power on, P14 is configured as an input.
14P15P-port input/output (push-pull design structure). At power on, P15 is configured as an input.
15P16P-port input/output (push-pull design structure). At power on, P16 is configured as an input.
16P17P-port input/output (push-pull design structure). At power on, P17 is configured as an input.
17P20P-port input/output (push-pull design structure). At power on, P20 is configured as an input.
18P21P-port input/output (push-pull design structure). At power on, P21 is configured as an input.
19P22P-port input/output (push-pull design structure). At power on, P22 is configured as an input.
20P23P-port input/output (push-pull design structure). At power on, P23 is configured as an input.
21P24P-port input/output (push-pull design structure). At power on, P24 is configured as an input.
22P25P-port input/output (push-pull design structure). At power on, P25 is configured as an input.
23P26P-port input/output (push-pull design structure). At power on, P26 is configured as an input.
24P27P-port input/output (push-pull design structure). At power on, P27 is configured as an input.
25GNDGround
26ADDRAddress input. Connect directly to VCCP or ground.
27VCCPSupply voltage of TCA6424A for P port
28RESETActive-low reset input. Connect to VCCI through a pullup resistor, if no active connection is used.
29SCLSerial clock bus. Connect to VCCI through a pullup resistor.
30SDASerial data bus. Connect to VCCI through a pullup resistor.
31VCCISupply voltage of I2C bus. Connect directly to the VCC of the external I2C controller. Provides voltage-level translation.
32INTInterrupt output. Connect to VCCI through a pullup resistor.
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