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ZPSD301-B-70J Datasheet(PDF) 2 Page - STMicroelectronics

Part # ZPSD301-B-70J
Description  Low Cost Field Programmable Microcontroller Peripherals
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ZPSD301-B-70J Datasheet(HTML) 2 Page - STMicroelectronics

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Obsolete
Product(s)
- Obsolete
Product(s)
Obsolete
Product(s)
- Obsolete
Product(s)
i
PSD3XX Family
PSD3XX
ZPSD3XX
ZPSD3XXV
PSD3XXR
ZPSD3XXR
ZPSD3XXRV
Low Cost Microcontroller Peripherals
Table of Contents
1
Introduction ...........................................................................................................................................................1
2
Notation ................................................................................................................................................................2
3
Key Features ........................................................................................................................................................4
4
PSD3XX Family Feature Summary ......................................................................................................................5
5
Partial Listing of Microcontrollers Supported ........................................................................................................6
6
Applications ..........................................................................................................................................................6
7
ZPSD Background ................................................................................................................................................6
7.1
Integrated Power ManagementTM Operation .............................................................................................7
8
Operating Modes (MCU Configurations) ............................................................................................................10
9
Programmable Address Decoder (PAD).............................................................................................................12
10
I/O Port Functions ...............................................................................................................................................15
10.1
CSIOPORT Registers..............................................................................................................................15
10.2
Port A (PA0-PA7).....................................................................................................................................16
10.2.1 Port A (PA0-PA7) in Multiplexed Address/Data Mode................................................................16
10.2.2 Port A (PA0-PA7) in Non-Multiplexed Address/Data Mode ........................................................17
10.3
Port B (PB0-PB7).....................................................................................................................................18
10.3.1 Port B (PA0-PA7) in Multiplexed Address/Data Mode................................................................18
10.3.2 Port B (PA0-PA7) in Non-Multiplexed Address/Data Mode ........................................................19
10.4
Port C (PC0-PC2) ....................................................................................................................................20
10.5
ALE/AS Input Pin .....................................................................................................................................20
11
PSD Memory ......................................................................................................................................................21
11.1
EPROM....................................................................................................................................................21
11.2
SRAM (Optional)......................................................................................................................................21
11.3
Page Register (Optional) .........................................................................................................................21
11.4
Programming and Erasure.......................................................................................................................21
12
Control Signals ...................................................................................................................................................22
12.1
ALE or AS ................................................................................................................................................22
12.2
WR or R/W...............................................................................................................................................22
12.3
RD/E/DS (DS option not available on 3X1 devices) ................................................................................22
12.4
PSEN or PSEN ........................................................................................................................................22
12.5
A19/CSI ...................................................................................................................................................23
12.6
Reset Input ..............................................................................................................................................24
13
Program/Data Space and the 8031 ....................................................................................................................26
14
Systems Applications..........................................................................................................................................27
15
Security Mode .....................................................................................................................................................30
16
Power Management............................................................................................................................................30
16.1
CSI Input..................................................................................................................................................30
16.2
CMiser Bit ................................................................................................................................................30
16.3
Turbo Bit (ZPSD Only).............................................................................................................................31
16.4
Number of Product Terms in the PAD Logic............................................................................................31
16.5
Composite Frequency of the Input Signals to the PAD Logic..................................................................32
16.6
Loading on I/O Pins .................................................................................................................................33
17
Calculating Power ...............................................................................................................................................34
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