AT91SAM7S32B-AU
32-bit ARM7TDMI microcontroller with 32KB Flash and 8KB RAMAT91SAM7S32B-AU
32-bit ARM7TDMI microcontroller with 32KB Flash and 8KB RAM
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Manufacturer Part # : AT91SAM7S32B-AU
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Package/Case: LQFP-48
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Brand: Microchip Technology
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Product Categories : Microcontrollers
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AT91SAM7S32B-AU DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
In summary, the AT91SAM7S32B-AU microcontroller from Microchip Technology is a versatile and robust solution for embedded control applications. With its ARM Thumb Processor Core, ample on-chip memory, and support for various communication interfaces, it offers the performance and flexibility needed for modern electronic designs. Its compact 64-pin LQFP package and wide operating voltage range further enhance its suitability for a range of low-power and portable device applications. With advanced power-saving modes, this microcontroller enables efficient energy management, making it an ideal choice for battery-powered applications
Key Features
- Incorporates the ARM7TDMI® ARM® Thumb® Processor
- – High-performance 32-bit RISC Architecture
- – High-density 16-bit Instruction Set
- – Leader in MIPS/Watt
- – EmbeddedICE™ In-circuit Emulation, Debug Communication Channel Support
- Internal High-speed Flash
- – 512 Kbytes (AT91SAM7S512) Organized in Two Contiguous Banks of 1024 Pages of 256 Bytes (Dual Plane)
- – 256 Kbytes (AT91SAM7S256) Organized in 1024 Pages of 256 Bytes (Single Plane)
- – 128 Kbytes (AT91SAM7S128) Organized in 512 Pages of 256 Bytes (Single Plane)
- – 64 Kbytes (AT91SAM7S64) Organized in 512 Pages of 128 Bytes (Single Plane)
- – 32 Kbytes (AT91SAM7S321/32) Organized in 256 Pages of 128 Bytes (Single Plane)
- – 16 Kbytes (AT91SAM7S161/16 Organized in 256 Pages of 64 Bytes (Single Plane)
- – Single Cycle Access at Up to 30 MHz in Worst Case Conditions
- – Prefetch Buffer Optimizing Thumb Instruction Execution at Maximum Speed
- – Page Programming Time: 6 ms, Including Page Auto-erase, Full Erase Time: 15 ms
- – 10,000 Write Cycles, 10-year Data Retention Capability, Sector Lock Capabilities, Flash Security Bit
- – Fast Flash Programming Interface for High Volume Production
- Internal High-speed SRAM, Single-cycle Access at Maximum Speed
- – 64 Kbytes (AT91SAM7S512/256)
- – 32 Kbytes (AT91SAM7S128)
- – 16 Kbytes (AT91SAM7S64)
- – 8 Kbytes (AT91SAM7S321/32)
- – 4 Kbytes (AT91SAM7S161/16)
- Memory Controller (MC)
- – Embedded Flash Controller, Abort Status and Misalignment Detection
- Reset Controller (RSTC)
- – Based on Power-on Reset and Low-power Factory-calibrated Brown-out Detector
- – Provides External Reset Signal Shaping and Reset Source Status
- Clock Generator (CKGR)
- – Low-power RC Oscillator, 3 to 20 MHz On-chip Oscillator and one PLL
- Power Management Controller (PMC)
- – Software Power Optimization Capabilities, Including Slow Clock Mode (Down to 500 Hz) and Idle Mode
- – Three Programmable External Clock Signals
- Advanced Interrupt Controller (AIC)
- – Individually Maskable, Eight-level Priority, Vectored Interrupt Sources
- – Two (AT91SAM7S512/256/128/64/321/161) or One (AT91SAM7S32/16) External Interrupt Source(s) and One Fast Interrupt Source, Spurious Interrupt Protected
- Debug Unit (DBGU)
- – 2-wire UART and Support for Debug Communication Channel interrupt, Programmable ICE Access Prevention
- – Mode for General Purpose 2-wire UART Serial Communication
- Periodic Interval Timer (PIT)
- – 20-bit Programmable Counter plus 12-bit Interval Counter
- Windowed Watchdog (WDT)
- – 12-bit key-protected Programmable Counter
- – Provides Reset or Interrupt Signals to the System
- – Counter May Be Stopped While the Processor is in Debug State or in Idle Mode
- (Continue ...)
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Product Category ! | ARM Microcontrollers - MCU | RoHS | Details |
Series | SAM7S/SE | Mounting Style | SMD/SMT |
Package / Case | LQFP-48 | Core | ARM7TDMI |
Program Memory Size | 32 kB | Data Bus Width | 32 bit/16 bit |
ADC Resolution | 10 bit | Maximum Clock Frequency | 55 MHz |
Number of I/Os | 21 I/O | Data RAM Size | 8 kB |
Supply Voltage - Min | 1.65 V | Supply Voltage - Max | 1.95 V |
Minimum Operating Temperature | - 40 C | Maximum Operating Temperature ! | + 85 C |
Analog Supply Voltage | 3.3 V | Brand | Microchip Technology |
Data RAM Type | RAM | Height | 1.4 mm |
I/O Voltage | 1.65 V to 3.6 V | Interface Type | I2C, SPI, USART |
Length | 7 mm | Moisture Sensitive | Yes |
Number of ADC Channels | 8 Channel | Number of Timers/Counters | 3 Timer |
Processor Series | SAM7S | Product | MCUs |
Product Type ! | ARM Microcontrollers - MCU | Program Memory Type ! | Flash |
Factory Pack Quantity | 250 | Subcategory | Microcontrollers - MCU |
Watchdog Timers | Watchdog Timer | Width | 7 mm |
Unit Weight | 0.006409 oz |
Specification Comparison
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is AT91SAM7S32B-AU?
The AT91SAM7S32B-AU is a 32-bit ARM®-based microcontroller designed by Microchip Technology (formerly Atmel Corporation). It is part of the AT91SAM7S series and is ideal for applications requiring high performance, low power consumption, and peripheral integration, such as industrial automation, consumer electronics, and automotive systems.
How Does AT91SAM7S32B-AU Work?
The AT91SAM7S32B-AU operates as a versatile microcontroller with a 32-bit ARM processor core. It provides various on-chip peripherals, including timers, serial interfaces, and analog-to-digital converters, for interfacing with external components and sensors. The microcontroller's embedded flash memory enables program storage and execution, while its low-power modes support energy-efficient operation.
How Many Pins does AT91SAM7S32B-AU have and What are the Functions of the Pinout Configuration?
The AT91SAM7S32B-AU is housed in an LQFP (Low-profile Quad Flat Package) with 48 pins. The pinout configuration includes:
- GPIO: General-purpose input/output pins for interfacing with external devices.
- Power Supply Pins: Including VDD, VDDIO, VDDCORE, VDDANA, and ground pins for power distribution and grounding.
- Serial Communication Interfaces: Such as USART, SPI, and I2C interfaces for serial data exchange.
- Analog Interfaces: Including ADC and DAC pins for analog signal acquisition and generation.
- Timer/Counter Pins: for timer and counter functions.
- Interrupt and Control Pins: for system control and interrupt handling.
What are the Pros and Cons of AT91SAM7S32B-AU?
Pros:
- High-Performance ARM Core: Provides 32-bit processing power for complex tasks and computation.
- Peripheral Integration: Offers a wide range of on-chip peripherals for versatile system integration.
- Low Power Consumption: Supports low-power modes for energy-efficient operation in battery-powered applications.
- Embedded Flash Memory: Enables program storage for standalone operation without external memory.
- Industry-standard Package: The LQFP package ensures easy integration into various PCB designs.
Cons:
- Complexity: The advanced features and capabilities may require a learning curve for new users.
- External Components: Some applications may require external components for specific functionality.
- Cost: Higher performance and integration may lead to a higher initial cost compared to simpler microcontrollers.
Are There Any Equivalents/Alternatives to AT91SAM7S32B-AU for Recommendation?
- The STM32F103 series from STMicroelectronics offers comparable 32-bit ARM-based microcontrollers with similar features.
- Alternatives to the AT91SAM7S32B-AU include the LPC1768 from NXP Semiconductors and the PIC32 series from Microchip Technology.
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