Overview
The ZPSD302B-90JI is a microcontroller peripheral produced by STMicroelectronics. It is a low-cost, field-programmable device designed for use in various digital systems that require programmable logic and memory. This component is particularly useful in applications where custom logic control and storage are necessary.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 5 V ± 10% |
| EPROM Capacity | Up to 1 Mbit (configurable as 32, 64, or 128 K x 8; or 16, 32, or 64 K x 16) |
| SRAM Capacity | Optional 16 Kbit (configurable as 2K x 8 or 1K x 16) |
| Access Time | As fast as 70 ns (including address decoding) |
| I/O Pins | 19 I/O pins (individually configurable) |
| Programmable Arrays | Two Programmable Arrays (PAD A and PAD B) with up to 18 inputs and 24 outputs |
| Package Types | PLDCC44 (J), CLDCC44 (L), PQFP44 (M), TQFP44 (U) |
| Operating Temperature | Industrial temperature range |
Key Features
- Single-chip programmable peripheral for microcontroller-based applications
- Up to 1 Mbit of UV EPROM with configurable block sizes and fast access times
- Optional 16 Kbit SRAM with configurable configurations and fast access times
- 19 I/O pins that can be individually configured for various functions (I/O port expansion, PAD I/O, latched address output, etc.)
- Two Programmable Arrays (PAD A and PAD B) to replace PLD or decoder logic
- Ability to interface with multiplexed and non-multiplexed buses with built-in address latches
- Programmable power management with low standby current (as low as 1µA for low-voltage versions)
- Optional built-in page logic to expand MCU address space by up to 16 times
- Built-in security locks to protect device and PAD decoding configuration
- Wide operating voltage range (4.5 to 5.5 volts for standard versions, 2.7 to 5.5 volts for V-versions)
Applications
- Embedded Systems: Ideal for systems requiring custom logic control and storage, such as instrumentation and industrial control systems.
- Communication Systems: Used in circuits for managing communication protocols and buffering data in telecommunication equipment.
- Consumer Electronics: Found in custom logic control circuits for consumer devices like home appliances, toys, and other gadgets.
- Data Logging: Used in circuits designed for data logging, managing the flow of data to non-volatile memory storage.
- Automotive Electronics: Employed in various modules within vehicles to handle specific logic controls and data storage tasks.
- Prototyping and Development Boards: Part of development kits and prototyping boards used by engineers to design and test new digital circuits and systems.
Q & A
- What is the primary function of the ZPSD302B-90JI?
The ZPSD302B-90JI is a microcontroller peripheral that provides programmable logic and memory capabilities for various digital systems.
- What are the key memory features of the ZPSD302B-90JI?
The device includes up to 1 Mbit of UV EPROM and optional 16 Kbit SRAM, both with configurable configurations and fast access times.
- How many I/O pins does the ZPSD302B-90JI have, and what are their functions?
The device has 19 I/O pins that can be individually configured for various functions such as I/O port expansion, PAD I/O, latched address output, etc.
- What types of programmable arrays does the ZPSD302B-90JI offer?
The device features two Programmable Arrays (PAD A and PAD B) with up to 18 inputs and 24 outputs.
- Can the ZPSD302B-90JI operate in both multiplexed and non-multiplexed bus configurations?
Yes, it can interface with both multiplexed and non-multiplexed buses and includes built-in address latches for multiplexed address/data buses.
- What is the power management capability of the ZPSD302B-90JI?
The device offers programmable power management with low standby current (as low as 1µA for low-voltage versions) and features like CMiser bit and Turbo Bit to reduce power consumption.
- What is the operating voltage range of the ZPSD302B-90JI?
The standard versions operate between 4.5 to 5.5 volts, while the V-versions operate between 2.7 to 5.5 volts.
- Can the ZPSD302B-90JI be used in automotive electronics?
Yes, it is employed in various modules within vehicles to handle specific logic controls and data storage tasks.
- Is the ZPSD302B-90JI suitable for prototyping and development boards?
Yes, it can be part of development kits and prototyping boards used by engineers to design and test new digital circuits and systems.
- What security features does the ZPSD302B-90JI offer?
The device includes built-in security locks to protect the device and PAD decoding configuration.
