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ZPSD211RVM Datasheet(PDF) 2 Page - STMicroelectronics |
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2 / 51 page i PSD211R Family PSD211R ZPSD211R ZPSD211RV Low Cost Microcontroller Peripherals Table of Contents 1 Introduction ...........................................................................................................................................................1 2 Notation ................................................................................................................................................................2 3 Key Features ........................................................................................................................................................4 4 PSD211R Family Feature Summary ....................................................................................................................5 5 Partial Listing of Microcontrollers Supported ........................................................................................................5 6 Applications ..........................................................................................................................................................5 7 ZPSD Background ................................................................................................................................................5 7.1 Integrated Power ManagementTM Operation .............................................................................................6 8 Operating Mode ....................................................................................................................................................9 9 Programmable Address Decoder (PAD)...............................................................................................................9 10 I/O Port Functions ...............................................................................................................................................12 10.1 CSIOPORT Registers..............................................................................................................................12 10.2 Port A (PA0-PA7).....................................................................................................................................12 10.3 Port B (PB0-PB7).....................................................................................................................................14 10.4 Port C (PC0-PC2) ....................................................................................................................................15 11 PSD Memory ......................................................................................................................................................16 11.1 EPROM....................................................................................................................................................16 11.2 Programming and Erasure.......................................................................................................................16 12 Control Signals ...................................................................................................................................................16 12.1 ALE or AS ................................................................................................................................................17 12.2 WR or R/W...............................................................................................................................................17 12.3 RD/E ........................................................................................................................................................17 12.4 PSEN .......................................................................................................................................................17 12.5 A19/CSI ...................................................................................................................................................17 12.6 Reset Input ..............................................................................................................................................18 13 Program/Data Space and the 8031 ....................................................................................................................20 14 Systems Applications..........................................................................................................................................21 15 Security Mode .....................................................................................................................................................23 16 Power Management............................................................................................................................................23 16.1 CSI Input..................................................................................................................................................23 16.2 CMiser Bit ................................................................................................................................................23 16.3 Turbo Bit (ZPSD Only).............................................................................................................................24 16.4 Number of Product Terms in the PAD Logic............................................................................................24 16.5 Composite Frequency of the Input Signals to the PAD Logic..................................................................25 16.6 Loading on I/O Pins .................................................................................................................................26 17 Calculating Power ...............................................................................................................................................27 18 Specifications......................................................................................................................................................30 18.1 Absolute Maximum Ratings .....................................................................................................................30 18.2 Operating RAnge .....................................................................................................................................30 18.3 Recommended Operating Conditions......................................................................................................30 18.4 Pin Capacitance.......................................................................................................................................30 18.5 AC/DC Characteristics – PSD211R/ZPSD211R (All 5 V devices)...........................................................31 18.6 AC/DC Characteristics – PSD211RV (3 V devices only).........................................................................32 18.7 Timing Parameters – PSD211R/ZPSD211R (All 5 V devices) ................................................................33 18.8 Timing Parameters – ZPSD211RV (3 V devices only) ............................................................................34 18.9 Timing Diagrams for PSD211R Parts .....................................................................................................36 18.10 AC Testing ...............................................................................................................................................39 |
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