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AT91SAM7S16

Status: End of Life

Features:

  • ARM7TDMI® ARM® Thumb® Processor 32-bit RISC Architecture
  • High-density 16-bit Instruction Set
  • EmbeddedICE™ In-circuit Emulation, Debug Communication Channel Support
  • 16 Kbytes, Organized in 256 Pages of 64 Bytes (Single Plane)
  • 4 Kbytes embedded SRAM, Single-cycle Access at Maximum Speed  
  • Memory Controller (MC)
  • Memory Protection Unit
  • Embedded 1.8V Regulator, Drawing up to 100 mA for the Core and External Components
  • Based on Power-on Reset Cells and Low-power Factory-calibrated Brownout Detector
  • Low-power RC Oscillator, 3 to 20 MHz On-chip Oscillator and One PLL
  • Power Management Controller (PMC)
  • Advanced Interrupt Controller (AIC)
  • Two-wire UART and Support for Debug Communication Channel interrupt, Programmable ICE Access Prevention
  • 20-bit Programmable Counter plus 12-bit Interval Counter
  • Windowed Watchdog (WDT)
  • Real-time Timer (RTT)
  • 32 Parallel Input/Output Controllers (PIO)
  • Eleven Peripheral DMA Controller (PDC) Channels
  • Four High-current Drive I/O lines, Up to 16 mA Each
  • 48-lead LQFP
  • 48-pad QFN
  • One Synchronous Serial Controller (SSC)
  • Two Universal Synchronous/Asynchronous Receiver Transmitters (USART)
  • One Master/Slave Serial Peripheral Interfaces (SPI)
  • One USB 2.0 Full Speed (12 Mbits per second) Device Port
  • One Three-channel 16-bit Timer/Counter (TC)
  • One Four-channel 16-bit PWM Controller (PWMC)
  • One Two-wire Interface (TWI)
  • One 8-channel 10-bit Analog-to-Digital Converter, Four Channels Multiplexed with Digital I/Os
  • Up to 55 MHz at 1.65V and 85°C Worst Case Conditions
  • SAM-BA - Interface with SAM-BA Graphic User Interface
  • IEEE® 1149.1 JTAG Boundary Scan on All Digital Pins
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Device Overview

Summary

Microchip's ARM®-based SAM7S161 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 SAM7S161 operates from 1.65V to 3.6V and is available in 64-pin QFN and LQFP packages.

Additional Features

    Microcontroller Features

    Core

    • ARM7TDMI® ARM® Thumb® Processor 32-bit RISC Architecture

    • High-density 16-bit Instruction Set

    • EmbeddedICE™ In-circuit Emulation, Debug Communication Channel Support

    Memories

    • 16 Kbytes, Organized in 256 Pages of 64 Bytes (Single Plane)

    • 4 Kbytes embedded SRAM, Single-cycle Access at Maximum Speed  

    • Memory Controller (MC)

    • Memory Protection Unit

    System

    • Embedded 1.8V Regulator, Drawing up to 100 mA for the Core and External Components

    • Based on Power-on Reset Cells and Low-power Factory-calibrated Brownout Detector

    • Low-power RC Oscillator, 3 to 20 MHz On-chip Oscillator and One PLL

    • Power Management Controller (PMC)

    • Advanced Interrupt Controller (AIC)

    • Two-wire UART and Support for Debug Communication Channel interrupt, Programmable ICE Access Prevention

    • 20-bit Programmable Counter plus 12-bit Interval Counter

    • Windowed Watchdog (WDT)

    • Real-time Timer (RTT)

    • 32 Parallel Input/Output Controllers (PIO)

    • Eleven Peripheral DMA Controller (PDC) Channels

    • Four High-current Drive I/O lines, Up to 16 mA Each

    Package

    • 48-lead LQFP

    • 48-pad QFN

    Peripheral Features

    • One Synchronous Serial Controller (SSC)

    • Two Universal Synchronous/Asynchronous Receiver Transmitters (USART)

    • One Master/Slave Serial Peripheral Interfaces (SPI)

    • One USB 2.0 Full Speed (12 Mbits per second) Device Port

    • One Three-channel 16-bit Timer/Counter (TC)

    • One Four-channel 16-bit PWM Controller (PWMC)

    • One Two-wire Interface (TWI)

    Analog Features

    • One 8-channel 10-bit Analog-to-Digital Converter, Four Channels Multiplexed with Digital I/Os

    Fully Static Operation

    • Up to 55 MHz at 1.65V and 85°C Worst Case Conditions

    Debugger Development Support

    • SAM-BA - Interface with SAM-BA Graphic User Interface

    • IEEE® 1149.1 JTAG Boundary Scan on All Digital Pins

Parametrics
Name
Value
Part Family
AT91SAM7S16
Max CPU Speed MHz
55
Program Memory Size (KB)
16
SRAM (KB)
4
Temperature Range (C)
-40 to 85
Operating Voltage Range (V)
3 to 3.6
Direct Memory Access Channels
9
SPI
1
I2C
1
Peripheral Pin Select / Pin Muxing
Yes
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
21
Pincount
48

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Data Sheet

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Product Document

01/01/2010
411KB

User Guides

Development Environment

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Demo & Evaluation Boards
SAM-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.

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