參數(shù)資料
      型號(hào): PSD4235F3-A-20U
      廠商: 意法半導(dǎo)體
      英文描述: Flash In-System-Programmable Peripherals for 16-Bit MCUs
      中文描述: Flash在系統(tǒng)可編程外設(shè)的16位微控制器
      文件頁(yè)數(shù): 39/93頁(yè)
      文件大?。?/td> 503K
      代理商: PSD4235F3-A-20U
      MCU
      CNTL0
      CNTL1
      CNTL2
      PD3
      PD0**
      ADIO0
      PF3-PF0
      68302, 68306
      MMC2001
      68330, 68331
      68332, 68340
      68LC302,
      MMC2001
      68HC16
      68HC912
      68HC812***
      80196
      80196SP
      80186
      80C161
      80C164-80C167
      80C51XA
      H8/3044
      M37702M2
      R/W
      LDS
      UDS
      *
      AS
      *
      R/W
      DS
      SIZ0
      *
      AS
      A0
      *
      WEL
      OE
      WEH
      AS
      *
      R/W
      R/W
      R/W
      WR
      WRL
      WR
      DS
      E
      E
      RD
      RD
      RD
      SIZ0
      LSTRB
      LSTRB
      BHE
      *
      BHE
      *
      AS
      E
      *
      ALE
      ALE
      ALE
      A0
      A0
      A0
      A0
      A0
      A0
      *
      *
      *
      *
      *
      *
      *
      DBE
      *
      *
      WRH
      *
      *
      WR
      RD
      BHE
      ALE
      A0
      WRL
      WRL
      R/W
      RD
      RD
      E
      PSEN
      *
      BHE
      WRH
      WRH
      *
      ALE
      AS
      ALE
      A4/D0
      A0
      A0
      A3-A1
      *
      PSD4000 Series
      Preliminary Information
      36
      The
      PSD4000
      Functional
      Blocks
      (cont.)
      9.3 Microcontroller Bus Interface
      The
      no-glue logic
      PSD4000 Microcontroller Bus Interface can be directly connected to
      most popular microcontrollers and their control signals. Key 16-bit microcontrollers with
      their bus types and control signals are shown in Table 14. The MCU interface type is
      specified using the PSDsoft.
      Table 14. Microcontrollers and their Control Signals
      **
      *
      Unused CNTL2 pin can be configured as GPLD input. Other unused pins (PD3-0, PF3-0) can be
      ***
      configured for other I/O functions.
      *
      **
      ALE/AS input is optional for microcontrollers with a non-multiplexed bus.
      ***
      This configuration is for 68C812A4_EC at 5MHz, 3V only.
      9.3.1. PSD4000 Interface to a Multiplexed Bus
      Figure 16 shows an example of a system using a microcontroller with a 16-bit multiplexed
      bus and a PSD4000. The ADIO port on the PSD4000 is connected directly to the
      microcontroller address/data bus. ALE latches the address lines internally. Latched
      addresses can be brought out to Port E, F or G. The PSD4000 drives the ADIO data bus
      only when one of its internal resources is accessed and the RD input is active. Should the
      system address bus exceed sixteen bits, Ports A, B, C, or F may be used as additional
      address inputs.
      9.3.2. PSD4000 Interface to a Non-Multiplexed Bus
      Figure 17 shows an example of a system using a microcontroller with a 16-bit
      non-multiplexed bus and a PSD4000. The address bus is connected to the ADIO Port, and
      the data bus is connected to Port F and G. Port F and G are in tri-state mode when the
      PSD4000 is not accessed by the microcontroller. Should the system address bus exceed
      sixteen bits, Ports A, B or C may be used for additional address inputs.
      相關(guān)PDF資料
      PDF描述
      PSD4235F3-A-20UI Flash In-System-Programmable Peripherals for 16-Bit MCUs
      PSD4235F3-A-70B81 Flash In-System-Programmable Peripherals for 16-Bit MCUs
      PSD4235F3-A-90JI Flash In-System-Programmable Peripherals for 16-Bit MCUs
      PSD4235F3-A-90M CAP 1UF 35V 20% TANT SMD-3216-18 TR-13-PL SN100%
      PSD4235F3-A-90MI CAP 1UF 35V 20% TANT SMD-3216-18 TR-13-PL SN100%
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