ZHCSI49C September   2014  – March 2021

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Functional Block Diagram
  5. 5 Revision History
  6. 6 Device Comparison
    1. 6.1 Related Products
  7. 7 Terminal Configuration and Functions
    1. 7.1 Pin Diagrams
    2. 7.2 Signal Descriptions
    3. 7.3 Pin Multiplexing
    4. 7.4 Connection of Unused Pins
  8. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Active Mode Supply Current (Into VCC) Excluding External Current
    5. 8.5 Low-Power Mode Supply Currents (Into VCC) Excluding External Current
    6. 8.6 Thermal Resistance Characteristics
    7. 8.7 Timing and Switching Characteristics
      1. 8.7.1  Reset Timing
        1. 8.7.1.1 Reset Timing
      2. 8.7.2  Clock Specifications
        1. 8.7.2.1 DCO in External Resistor Mode
        2. 8.7.2.2 DCO in Internal Resistor Mode
        3. 8.7.2.3 DCO Overall Tolerance Table
        4. 8.7.2.4 DCO in Bypass Mode Recommended Operating Conditions
      3. 8.7.3  Wake-up Characteristics
        1. 8.7.3.1 Wake-up Times From Low Power Modes
      4. 8.7.4  I/O Ports
        1. 8.7.4.1 Schmitt-Trigger Inputs – General-Purpose I/O
        2. 8.7.4.2 Inputs – Ports P1 and P2
        3. 8.7.4.3 Leakage Current – General-Purpose I/O
        4. 8.7.4.4 Outputs – General-Purpose I/O
        5. 8.7.4.5 Output Frequency – General-Purpose I/O
        6. 8.7.4.6 Typical Characteristics – Outputs
      5. 8.7.5  Power Management Module
        1. 8.7.5.1 PMM, High-Side Brownout Reset (BORH)
        2. 8.7.5.2 PMM, Low-Side SVS (SVSL)
        3. 8.7.5.3 PMM, Core Voltage
        4. 8.7.5.4 PMM, Voltage Monitor (VMON)
      6. 8.7.6  Reference Module
        1. 8.7.6.1 Voltage Reference (REF)
        2. 8.7.6.2 Temperature Sensor
      7. 8.7.7  SD24
        1. 8.7.7.1 SD24 Power Supply and Recommended Operating Conditions
        2. 8.7.7.2 SD24 Internal Voltage Reference
        3. 8.7.7.3 SD24 External Voltage Reference
        4. 8.7.7.4 SD24 Input Range
        5. 8.7.7.5 SD24 Performance, Internal Reference (SD24REFS = 1, SD24OSRx = 256)
        6. 8.7.7.6 SD24 Performance, External Reference (SD24REFS = 0, SD24OSRx = 256)
        7. 8.7.7.7 Typical Characteristics
      8. 8.7.8  eUSCI
        1. 8.7.8.1 eUSCI (UART Mode) Clock Frequency
        2. 8.7.8.2 eUSCI (UART Mode) Deglitch Characteristics
        3. 8.7.8.3 eUSCI (SPI Master Mode) Clock Frequency
        4. 8.7.8.4 eUSCI (SPI Master Mode) Timing
        5. 8.7.8.5 eUSCI (SPI Slave Mode) Timing
        6. 8.7.8.6 eUSCI (I2C Mode) Timing
      9. 8.7.9  Timer_A
        1. 8.7.9.1 Timer_A
      10. 8.7.10 Flash
        1. 8.7.10.1 Flash Memory
      11. 8.7.11 Emulation and Debug
        1. 8.7.11.1 JTAG and Spy-Bi-Wire Interface
  9. 9 Detailed Description
    1. 9.1  Overview
    2. 9.2  Functional Block Diagrams
    3. 9.3  CPU
    4. 9.4  Instruction Set
    5. 9.5  Operating Modes
    6. 9.6  Interrupt Vector Addresses
    7. 9.7  Special Function Registers
    8. 9.8  Flash Memory
    9. 9.9  JTAG Operation
      1. 9.9.1 JTAG Standard Interface
      2. 9.9.2 Spy-Bi-Wire Interface
      3. 9.9.3 JTAG Disable Register
    10. 9.10 Peripherals
      1. 9.10.1 Clock System
      2. 9.10.2 Power-Management Module (PMM)
      3. 9.10.3 Digital I/O
      4. 9.10.4 Watchdog Timer (WDT)
      5. 9.10.5 Timer TA0
      6. 9.10.6 Timer TA1
      7. 9.10.7 Enhanced Universal Serial Communication Interface (eUSCI)
      8. 9.10.8 Hardware Multiplier
      9. 9.10.9 SD24
    11. 9.11 Input/Output Diagrams
      1. 9.11.1 Port P1, P1.0 to P1.3, Input/Output With Schmitt Trigger
      2. 9.11.2 Port P1, P1.4 to P1.7, Input/Output With Schmitt Trigger
      3. 9.11.3 Port P2, P2.0 to P2.2 and P2.4 to P2.7, Input/Output With Schmitt Trigger
      4. 9.11.4 Port P2, P2.3, Input/Output With Schmitt Trigger
    12. 9.12 Device Descriptor
    13. 9.13 Memory
      1. 9.13.1 Peripheral File Map
    14. 9.14 Identification
      1. 9.14.1 Device Identification
      2. 9.14.2 JTAG Identification
  10. 10Applications, Implementation, and Layout
  11. 11Device and Documentation Support
    1. 11.1 Getting Started and Next Steps
    2. 11.2 Device Nomenclature
    3. 11.3 Tools and Software
    4. 11.4 Documentation Support
    5. 11.5 支持资源
    6. 11.6 Trademarks
    7. 11.7 静电放电警告
    8. 11.8 术语表
  12. 12Mechanical, Packaging, and Orderable Information

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

7.4 Connection of Unused Pins

Table 7-2 lists the correct termination of all unused pins.

Table 7-2 Connection of Unused Pins
PIN(1) POTENTIAL COMMENT
AVCC DVCC
AVSS DVSS
VREF Open
ROSC AVSS Connect the ROSC pin to AVSS when the DCO is used in internal resistor mode.
Px.0 to Px.7 Open Set to port function, output direction.
Ax.0+ and Ax.0- AVSS Short unused analog input pairs and connect them to analog ground.
RST/NMI DVCC or VCC 47-kΩ pullup with 10 nF (or 2.2 nF(2)) pulldown
TEST Open This pin always has an internal pulldown enabled.
P1.3/TDO
P1.2/TDI
P1.1/TMS
P1.0/TCK		 Open The JTAG pins are shared with general-purpose I/O function (P1.x). If these pins are not used, set them to port function and output direction. When used as JTAG pins, leave these pins open.
(1) For any unused pin with a secondary function that is shared with general-purpose I/O, follow the guidelines for the Px.0 to Px.7 unused pin connection.
(2) The pulldown capacitor should not exceed 2.2 nF when using devices with Spy-Bi-Wire interface in Spy-Bi-Wire mode or in 4-wire JTAG mode with TI tools like FET interfaces or GANG programmers.
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