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AT91SAM7S321

Status: Not Recommended for new designs

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Device Overview

Summary

The Microchip's ARM®-based SAM7S321 is a member of the SAM7S series of flash microcontrollers based on the 32-bit ARM7TDMI?? RISC processor. It operates at a maximum speed of 55MHz and features 16KB of flash memory and 4KB of SRAM. The peripheral set includes a Full Speed USB device and PHY at 12Mbps, UART, two USARTs, TWI (I2C), SPI, SSC, two PWM timers, three 16-bit timers, RTT, 8x10-bit ADC and 32 IO lines. It achieves single-cycle instruction access from embedded flash at 27 MIPS. The multi-layer bus matrix, multiple SRAM banks, PDC, and DMA support parallel tasks and maximize data throughput. The SAM7S321 operates from 1.65V to 3.6V and is available in 64-pin QFN and LQFP packages.

Parametrics
Name
Value
Part Family
ARM7TDMI
Max CPU Speed MHz
55
Program Memory Size (KB)
32
SRAM (KB)
8
Temperature Range (C)
-40 to 85
Operating Voltage Range (V)
3 to 3.6
Direct Memory Access Channels
11
SPI
1
I2C
1
Peripheral Pin Select / Pin Muxing
Yes
Number of USB Modules
1
USB Interface
FS Device
ADC Input
8
Max ADC Resolution (Bits)
10
Max ADC Sampling Rate (ksps)
384
Input Capture
3
Max 16-bit Digital Timers
3
Internal Oscillator
32Khz
Max I/O Pins
32
Pincount
64

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Development Environment

  • Integrated Development Environments
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Integrated Development Environments
Atmel-Studio
Atmel Studio IDE ( Atmel-Studio )

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Compilers
MPLAB-XC32
MPLAB XC32 Compiler ( MPLAB-XC32 )

Available as free, unrestricted-use downloads, our award-winning MPLAB® XC C Compilers are comprehensive solutions for your project’s software development. Finding the right compiler to support your device is simple:

MPLAB XC8 supports all 8-bit PIC® and AVR® microcontrollers (MCUs)
MPLAB XC16 supports all 16-bit PIC MCUs and dsPIC® Digital Signal...

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ARM-GCC
ARM GCC ( ARM-GCC )

The ARM® Toolchain is a collection of tools/libraries used to create applications for ARM microcontrollers. This collection includes compiler, assembler, linker and Standard C and math libraries.

Most of these tools are based on efforts from GNU (www.gnu.org), and some are developed by Microchip. For more information please refer to the release notes.

The Atmel...

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Emulators & Debuggers
J-32 Debug Probe
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The J-32 Debug Probe Debugger/Programmer provides affordable, fast and easy debugging and programming for Microchip’s PIC32 and SAM MCU and MPU products. Plus, SEGGER offers free, stand-alone applications to extend J-32 Debug Probe functionality:

J-32 Debug Probe is fully integrated into Microchip’s powerful MPLAB® X Integrated Development Environment and

...

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Production Programmers
J-32 Debug Probe
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...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Dimension
Solder Composition
JEDEC Indicator
RoHS
China EFUP
AT91SAM7S32B-MU-999
0.144300
0.060857
48
VQFN
7x7x0.9mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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