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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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Integrated Development Environments
AT91SAM-ICE
SAM-ICE ( AT91SAM-ICE )

SAM-ICE is a JTAG emulator designed for SAMA5, SAM3, SAM4, SAM7 and SAM9 ARM® core-based MCUs and MPUs, including Thumb mode. It supports download speeds up to 720K Bytes per second and maximum JTAG speeds up to 12 MHZ. It also supports Serial Wire Debug (SWD) and Serial Wire Viewer (SWV) from SAM-ICE hardware V6.

The AT91SAM-ICE catalog part number (CPN) will be moving to End of

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