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AT91SAM7S128

Status: In Production

Features:

  • ARM7TDMI® ARM® Thumb® Processor 32-bit RISC Architecture
  • High-density 16-bit Instruction Set
  • EmbeddedICE™ In-circuit Emulation, Debug Communication Channel Support
  • 128 Kbytes, Organized in 512 Pages of 256 Bytes (Single Plane)
  • 32 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
  • 64-lead LQFP
  • 64-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 1.8V and 85⋅ C Worst Case Conditions
  • Up to 48 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 SAM7S128 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 128KB of flash memory and 32KB of SRAM.

The peripheral set includes a Full Speed USB device and PHY at 12Mbps, UART, two USARTs, TWI (I2C), SPI, SSC,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 SAM7S128 operates from 1.65V to 3.6V and is available in 64-pin LQFP and QFN 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

    • 128 Kbytes, Organized in 512 Pages of 256 Bytes (Single Plane)

    • 32 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

    • 64-lead LQFP

    • 64-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 1.8V and 85⋅ C Worst Case Conditions
    • Up to 48 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
AT91SAM7S128
Max CPU Speed MHz
55
Program Memory Size (KB)
128
SRAM (KB)
32
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
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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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
AT91SAM7S128D-MU
0.224700
0.969231
64
VQFN
9x9x1mm
Matte Tin
e3
AT91SAM7S128D-MU-999
0.224700
0.225143
64
VQFN
9x9x1mm
Matte Tin
e3
AT91SAM7S128D-AU
0.368300
1.087500
64
LQFP
10x10x1.4mm
Matte Tin
e3
AT91SAM7S128D-AU-999
0.368300
0.366667
64
LQFP
10x10x1.4mm
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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