Details, datasheet, quote on part number: PSD954F2-90JI
PartPSD954F2-90JI
CategoryMemory => PSD(Programmable System Memories)
TitlePSD(Programmable System Memories)
DescriptionConfigurable Memory System on a Chip For 8-BIT Microcontrollers
CompanyST Microelectronics, Inc.
DatasheetDownload PSD954F2-90JI datasheet
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Features, Applications
Flash In-System Programmable (ISP) Peripherals For 8-bit MCUs

2Mbit of Primary Flash Memory (8 uniform sectors) 256Kbit Secondary Flash Memory (4 uniform sectors) to 256Kbit SRAM Over 2,000 Gates of PLD: DPLD 27 Reconfigurable I/O ports Enhanced JTAG Serial Port Programmable power management High Endurance: 100,000 Erase/Write Cycles of Flash Memory 1,000 Erase/Write Cycles of PLD

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

Introduction....................................................................................................................................................................1 In-System Programming (ISP) JTAG....................................................................................................................2 In-Application Programming (IAP)........................................................................................................................2 Key Features.................................................................................................................................................................3 Block PSD9XX Family.............................................................................................................................................................5 Architectural Overview...................................................................................................................................................6 Memory.................................................................................................................................................................6 Page Register.......................................................................................................................................................6 PLDs.....................................................................................................................................................................6 I/O Ports................................................................................................................................................................7 Microcontroller Bus Interface................................................................................................................................7 JTAG Port.............................................................................................................................................................7 In-System Programming.......................................................................................................................................8 Power Management Unit......................................................................................................................................8 Development System....................................................................................................................................................9 Pin Descriptions...........................................................................................................................................................10 Register Description and Address Offset....................................................................................................................14 Functional Blocks........................................................................................................................................................15 Memory Blocks...................................................................................................................................................15 Main Flash and Secondary Flash Memory Description.................................................................................15 SRAM............................................................................................................................................................27 Memory Chip Selects....................................................................................................................................27 Page Register...............................................................................................................................................30 PLDs...................................................................................................................................................................31 Decode PLD (DPLD).....................................................................................................................................33 General Purpose PLD (GPLD)......................................................................................................................33 Microcontroller Bus Interface..............................................................................................................................35 Interface to a Multiplexed 8-bit Bus...............................................................................................................35 Interface to a Non-multiplexed 8-bit Bus.......................................................................................................35 Microcontroller Interface Examples...............................................................................................................37 I/O Ports..............................................................................................................................................................42 General Port Architecture..............................................................................................................................42 Port Operating Modes...................................................................................................................................44 Port Configuration Registers (PCRs)............................................................................................................47 Port Data Registers.......................................................................................................................................49 Ports A and B Functionality and Structure.................................................................................................49 Port C Functionality and Structure.............................................................................................................51 Port D Functionality and Structure.............................................................................................................51

For additional information, Call 800-832-6974 Fax: 510-657-8495 Web Site: http://www.psdst.com E-mail: ask.psd@st.com

Power Management............................................................................................................................................54 Automatic Power Down (APD) Unit and Power Down Mode........................................................................54 Other Power Savings Options.......................................................................................................................58 Reset and Power On Requirement...............................................................................................................59 Programming In-Circuit using the JTAG Interface..............................................................................................60 Standard JTAG Signals.................................................................................................................................61 JTAG Extensions..........................................................................................................................................61 Security and Flash Memories Protection......................................................................................................61 Absolute Maximum Ratings.........................................................................................................................................62 Operating Range.........................................................................................................................................................62 Recommended Operating Conditions.........................................................................................................................62 AC/DC Parameters......................................................................................................................................................63 Example of Typical Power Calculation at Vcc 5..0 V.......................................................................................64 Example of Typical Power Calculation at Vcc V in Turbo Off Mode.........................................................65 DC Characteristics 10% versions)....................................................................................................................66 Microcontroller Interface AC/DC Parameters 10% versions).........................................................................67 Read Timing.......................................................................................................................................................68 Write Timing........................................................................................................................................................69 PLD Combinatorial Timing..................................................................................................................................69 Power Down Timing............................................................................................................................................70 Vstbyon Timing...................................................................................................................................................70 Reset Pin Timing................................................................................................................................................70 Flash Program, Write and Erase Times..............................................................................................................71 ISC PSD9XXFV DC Characteristics 3.6 V Versions) Advance Information.......................................................72 Microcontroller Interface AC/DC Parameters V versions)....................................................................................73 Read Timing V versions)................................................................................................................................73 Write Timing V versions)................................................................................................................................74 PLD Combinatorial Timing V versions)...........................................................................................................74 Power Down Timing V Versions)..................................................................................................................75 Vstbyon Timing V Versions).........................................................................................................................75 Reset Pin Timing V Versions).......................................................................................................................75 Flash Program, Write and Erase Times V Versions)....................................................................................76 ISC Timing V Versions)................................................................................................................................76


 

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