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:
"20-bit voltage source circuit for high-precision applications" video introduction [media=x,500,375]http://videos.analog.com/video/chinese/1853907223001/20/[/media]...
Recently I saw a board with a chip and a 5-pin patch with DE-F1Z written on it. I don't know what model it is? What is its function? And there is such a piece around the power supply pins of each chip...
I am a newbie here, and I need help urgently. I need to design a circuit to detect the peak value of a signal, and the detection range is required to be 100mv-3v. It is a pulse signal with a pulse wid...
On August 25th, SK Hynix announced that it has completed development and entered mass production of its 321-layer, 2Tb QLC NAND flash memory product. This achievement marks the world's first applic...[Details]
Electric vehicles' 12V batteries don't rely on a generator to power them. Only gasoline-powered vehicles rely on the engine to drive a generator to generate electricity while driving, which is used...[Details]
A multilevel inverter converts a DC signal into a multilevel staircase waveform. Instead of a straight positive-negative output waveform, the output waveform of a multilevel inverter alternates in ...[Details]
A human-machine interface (HMI) refers to the platform used by people to operate a PLC. This platform provides an interface between programs and humans, serving as a medium for information transmis...[Details]
According to Nikkei, a survey found that global electric vehicle battery supply is expected to reach more than three times the required quantity due to
cooling
demand for electric vehicles,...[Details]
Tiantai Robot's official Weibo account announced on the evening of August 20 that Tiantai Robot Co., Ltd., together with strategic partners including Shandong Future Robot Technology Co., Ltd., Sha...[Details]
The difference between a series inverter and a parallel inverter is that they use different oscillation circuits. A series inverter connects L, R, and C in series, while a parallel inverter connect...[Details]
Lightweighting of automobiles is still a relatively unfamiliar term for automobiles. With the continuous improvement of environmental protection requirements, relevant regulations have also put for...[Details]
High-definition media consumption is experiencing a dual growth: an increase in the number of consumers and a transition to higher-definition content. This growth is driven by increasingly widespre...[Details]
In camera and display systems, the demand for high-performance and low-power data interfaces is driving continuous technological evolution. The evolution of MIPI D-PHY and MIPI C-PHY clearly ...[Details]
Traditionally, electrical energy is transmitted primarily through wires, requiring direct physical contact between the power source and the load. With the increasing number of electrical devices in...[Details]
At present, the most troubling thing about pure electric vehicles as new energy sources is not only the range anxiety, but also the disadvantage of long charging time. At present, ternary lithium b...[Details]
While aberration theory is a vast subject, a basic understanding of some fundamental concepts can make it easier to understand: spherical aberration, astigmatism, field curvature, and chromatic abe...[Details]
In this era of transition, traditional fuel vehicles and new energy vehicles are at odds with each other. Many people say new energy vehicles are too complicated. While pure electric vehicles are f...[Details]
The field of AI is constantly evolving. We are witnessing a profound shift from the era of "generative AI" to the era of "agent AI." This transformation has the potential to reshape industries an...[Details]
Microcontroller MCU
京公网安备 11010802033920号
EEWORLD
