Key Features ........................................................................................................................................................4
PSD3XX Family Feature Summary ......................................................................................................................5
Partial Listing of Microcontrollers Supported ........................................................................................................6
I/O Port Functions ...............................................................................................................................................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
11.4 Programming and Erasure.......................................................................................................................21
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
Program/Data Space and the 8031 ....................................................................................................................26
Systems Applications..........................................................................................................................................27
Power Management............................................................................................................................................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
Calculating Power ...............................................................................................................................................34
18.1 Absolute Maximum Ratings .....................................................................................................................37
18.2 Operating Range .....................................................................................................................................37
18.5 AC/DC Characteristics – PSD3XX/ZPSD3XX (All 5 V devices) ..............................................................38
18.6 AC/DC Characteristics – PSD3XXV (3 V devices only)...........................................................................39
18.7 Timing Parameters – PSD3XX/ZPSD3XX (All 5 V devices)....................................................................40
18.8 Timing Parameters – ZPSD3XXV (3 V devices only) ..............................................................................42
18.9 Timing Diagrams for PSD3XX Parts.......................................................................................................44
18.10 AC Testing ...............................................................................................................................................65
Package Information ...........................................................................................................................................67
22.2 Part Number Construction .......................................................................................................................73
Data Sheet Revision History ...............................................................................................................................80
19
20
21
22
23
ii
Programmable Peripheral
PSD3XX Family
Field-Programmable Microcontroller Peripheral
1.0
Introduction
The low cost PSD3XX family integrates high-performance and user-configurable blocks of
EPROM, programmable logic, and optional SRAM into one part. The PSD3XX products
also provide a powerful microcontroller interface that eliminates the need for external
“glue logic”. The part’s integration, small form factor, low power consumption, and ease of
use make it the ideal part for interfacing to virtually any microcontroller.
The major functional blocks of the PSD3XX include:
•
Two programmable logic arrays
•
256Kb to 1 Mb of EPROM
•
Optional 16 Kb SRAM
•
Input latches
•
Programmable I/O ports
•
Page logic
•
Programmable security.
The PSD3XX family architecture (Figure 1) can efficiently interface with, and enhance,
almost any 8- or 16-bit microcontroller system. This solution provides microcontrollers the
following:
•
Chip-select logic, control logic, and latched address signals that are otherwise
implemented discretely
•
Port expansion (reconstructs lost microcontroller I/O)
•
Expanded microcontroller address space (up to 16 times)
•
An EPROM (with security) and optional SRAM
•
Compatible with 8031-type architectures that use separate Program and Data Space
•
Interface to shared external resources.
1
PSD3XX Family
1.0
Introduction
(cont.)
The PSD3XX I/O ports can be used for:
•
Standard I/O ports
•
Programmable chip select outputs
•
Address inputs
•
Demultiplexed address outputs
•
A data bus port for non-multiplexed MCU applications
•
A data bus “repeater” port that shares and arbitrates the local MCU data bus with
external devices.
Implementing your design has never been easier than with PSDsoft —ST’s software
development suite. Using PSDsoft, you can do the following:
•
Configure your PSD3XX to work with virtually any microcontroller
•
Specify what you want implemented in the programmable logic using a high-level
Hardware Description Language (HDL)
•
Simulate your design
•
Download your design to the part using a programmer.
2.
Notation
For a complete product comparison, refer to Table 1.
PSD3XX
references the standard version of the PSD3XX family, which are ideal for
general-purpose embedded control applications.
PSD3XXR
SRAM-less version of the PSD3XX. If you don’t require the 16 Kb SRAM or
need a larger external SRAM, go with this part to save cost.
ZPSD3XX
has improved technology that helps reduce current consumption using the Turbo
bit. Excellent if you require a 5 V version of the PSD3XX that uses less power.
ZPSD3XXR
SRAM-less version of the ZPSD3XX.
ZPSD3XXV
2.7 V to 5.5 V operation, ideal for very low-power and low-voltage
applications.
ZPSD3XXRV
SRAM-less version of the ZPSD3XXV.
Throughout this data sheet, references are made to the PSD3XX. In most cases, these
references also cover the entire family. Exceptions will be noted. References, such as
“3X1 only” cover all parts that have a 301 or 311 in the part number. Use the following table
to determine what references cover which product versions:
I would like to ask what is wrong with my initialization that causes the Bluetooth to not turn on the receiving function and report the error failed:0x48. Specifically, I would like to ask where the p...
All the components were purchased from Taobao. As we all know, the Taobao Special Price APP is very suitable for buying these gadgets.MaterialEverything is here. The battery box and 4056 charging boar...
After I burned the program into the flash, SCI can no longer receive anything, but sending can still run normally. What is the problem?Why can't I enter the ECAN interrupt? How do I configure those re...
Senior Software Engineer (Beijing) Job Description: - Establish software and necessary environment for debugging and testing of FPGA and ASIC; - Develop firmware such as I2C, SPI, MPEG2/MPEG4 and USB;...
Most of the houses we live in now are elevator buildings, mainly because it is more convenient to go up and down the stairs! It can also make life more comfortable. It even helps to increase the ad...[Details]
Is electromagnetic radiation from electric vehicles harmful to the human body? Recently, the issue of electromagnetic radiation from electric vehicles has garnered widespread attention. However, pu...[Details]
Long ago, the lifespan of cars in my country was 15 years. Once a car reached 15 years old, it was forced to be scrapped. However, the policy was later changed. As long as the car does not exceed 6...[Details]
Introduction to the principles of speech recognition technology
Automatic speech recognition (ASR) technology aims to enable computers to understand human speech and extract the textual inform...[Details]
With the rapid adoption of smart electric vehicles, automotive chips are evolving from auxiliary control units to the foundation of the entire vehicle's intelligence. Their applications extend from...[Details]
On August 22, according to the Ministry of Industry and Information Technology's official website, my country's first mandatory national standard for the control of hazardous substances in electric...[Details]
1 Source of creativity
With the further development of electronic technology, electronic pets have gradually entered people's family life. At present, there are two main categories of relative...[Details]
introduction
As “energy conservation and emission reduction” has become an indicator of the National Economic Development Outline of the 11th Five-Year Plan, people’s awareness of green enviro...[Details]
introduction
According to the China Fire Statistics Yearbook, electrical fires accounted for more than 30% of fire accidents in the past decade, and the trend is increasing year by year. They ...[Details]
With the development of science, the use of variable frequency technology is becoming more and more widespread, and it is used in both industrial equipment and household appliances. Inverter air co...[Details]
In the scorching summer, electric fans are a must-have for cooling down people's homes. However, I believe most people have encountered this situation: the fan is plugged in, the switch is pressed,...[Details]
Tires are a very important component for cars. They are related to the driving experience of the vehicle. We are almost inseparable from cars in our daily lives. For tires, according to the role of...[Details]
With the increasing popularity of automated equipment, linear modules, a common auxiliary device for automated equipment, have also seen a bright future. In particular, in recent years, many small ...[Details]
Shenzhen Baowei Power Supply high frequency pure sine wave power, communication inverter power supply has two communication interfaces, RS232 and R485 interfaces, their functions and characteristic...[Details]
We often hear about the precautions for using pure electric vehicles in winter, and many owners even develop relevant strategies, such as adopting a "charge as you go" principle for their vehicles,...[Details]
Talking
京公网安备 11010802033920号
EEWORLD
