Overview
The UPSD3234A-40U6 is a Flash Programmable System Device produced by STMicroelectronics. It combines a fast 8-bit 8032 microcontroller core with a flexible memory structure, programmable logic, and a rich set of peripherals. This device is part of the uPSD32xx series, which is designed to optimize the 8032 memory structure and provide advanced features for embedded system applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Part Number | UPSD3234A-40U6 | |
| Max Clock Frequency | 40 | MHz |
| First Flash Memory | 256 KB | |
| Second Flash Memory | 32 KB | |
| SRAM | 8 KB | |
| GPIO | 46 | |
| USB | Yes (v1.1, low-speed) | |
| 8032 Bus | Yes (available on TQFP80 package) | |
| Operating Voltage | 4.5 to 5.5 V | V |
| Package | TQFP80 | |
| Operating Temperature | –40°C to 85°C | °C |
Key Features
- Fast 8-bit 8032 MCU: Operates at up to 40 MHz at 5.0 V and 24 MHz at 3.3 V, with a 12-clock per instruction cycle.
- Dual Flash Memories: Two independent banks of Flash memory that can be placed in either the 8032 program or data address space, supporting read-while-write operations for in-application programming and EEPROM emulation.
- Programmable Logic: 16 macrocells for implementing state machines, glue-logic, and other functions.
- Communication Interfaces: USB v1.1 low-speed interface with three endpoints, I2C master/slave bus controller, two UARTs with independent baud rates, and six I/O ports with up to 46 I/O pins.
- Clock, Reset, and Supply Management: Normal, idle, and power-down modes, power-on and low voltage reset supervisor, and a programmable watchdog timer.
- A/D Converter: Four channels with 8-bit resolution and a conversion time of 10 µs.
- Timers and Interrupts: Three 8032 standard 16-bit timers and 10 interrupt sources with two external interrupt pins.
- JTAG In-System Programming: Allows programming the entire device in as little as 10 seconds.
Applications
The UPSD3234A-40U6 is suitable for a wide range of embedded system applications, including:
- Industrial control systems
- Medical devices
- Consumer electronics
- Automotive systems
- USB-based peripherals and devices
- IoT devices requiring programmable logic and multiple communication interfaces
Q & A
- What is the maximum clock frequency of the UPSD3234A-40U6?
The maximum clock frequency is 40 MHz at 5.0 V and 24 MHz at 3.3 V.
- How much Flash memory does the UPSD3234A-40U6 have?
The device has two Flash memory banks: 256 KB and 32 KB.
- What type of USB interface does the UPSD3234A-40U6 support?
The device supports a USB v1.1 low-speed interface with three endpoints.
- What is the operating voltage range of the UPSD3234A-40U6?
The operating voltage range is 4.5 to 5.5 V.
- What package types are available for the UPSD3234A-40U6?
The device is available in a TQFP80 package.
- Does the UPSD3234A-40U6 support in-system programming?
Yes, it supports JTAG in-system programming, allowing the entire device to be programmed in as little as 10 seconds.
- How many GPIO pins does the UPSD3234A-40U6 have?
The device has up to 46 GPIO pins.
- What is the resolution of the A/D converter on the UPSD3234A-40U6?
The A/D converter has an 8-bit resolution with a conversion time of 10 µs.
- Does the UPSD3234A-40U6 support EEPROM emulation?
Yes, the dual Flash memories support EEPROM emulation.
- What are the operating temperature ranges for the UPSD3234A-40U6?
The operating temperature range is –40°C to 85°C.
