Status: | Active |
---|---|
Series: | AT91SAM7S256 |
RoHS: | Compliant |
Microchip's ARM®-based SAM7S256 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 64KB 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 SAM7S256 operates from 1.65V to 3.6V and is available in 64-pin LQFP and QFN packages.
Prices starting from US$8.08
Distributor | Stock | ||
---|---|---|---|
RS
from US$10.19
|
632
in stock
|
Buy Now | |
Microchip Technology
from US$8.12
|
78,446
in stock
|
Buy Now | |
Avnet America
from US$11.25
|
3,737
in stock
|
Buy Now | |
Distrelec
from US$11.78
|
320
in stock
|
Buy Now | |
Transfer Multisort Elektronik
from US$9.31
|
286
in stock
|
Buy Now | |
Schukat Electronic
from US$8.08
|
104
in stock
|
Buy Now | |
Newark Electronics
from US$9.63
|
100
in stock
|
Buy Now | |
element14
from US$9.74
|
100
in stock
|
Buy Now | |
Farnell
from US$9.48
|
100
in stock
|
Buy Now | |
Micros
from US$9.27
|
19
in stock
|
Buy Now | |
EBV Elektronik
-
|
8,160
in stock
|
Buy Now | |
Avnet Silica
-
|
3,040
in stock
|
Buy Now | |
Future Electronics
from US$9.83
|
-
|
Buy Now |
ARM7TDMI® ARM® Thumb® Processor 32-bit RISC Architecture |
High-density 16-bit Instruction Set |
EmbeddedICEâ„¢ In-circuit Emulation, Debug Communication Channel Support |
256 Kbytes, Organized in 1024 Pages of 256 Bytes (Single Plane) |
64 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 85â‹… C Worst Case Conditions |
Up to 48 MHz at 1.65V and 85â‹… C Worst Case Conditions |
SAM-BA - Interface with SAM-BA Graphic User Interface |
IEEE® 1149.1 JTAG Boundary Scan on All Digital Pins |
Part Family | AT91SAM7S256 |
---|---|
CPU Type | ARM7 |
MaxSpeed (MHz) | 55 |
Program Memory Size (KB) | 256 |
SRAM (KB) | 64 |
Data EEPROM (bytes) | 0 |
Temp. Range Min. | -40 |
Temp. Range Max. | 85 |
Operation Voltage Min.(V) | 3 |
Operation Voltage Max.(V) | 3.6 |
Direct Memory Access (DMA) Channels | 11 |
SPIâ„¢ | 1 |
I2C | 1 |
UART | 3 |
I2S | 0 |
Ethernet | None |
Quadrature Encoder Interface (QEI) | 0 |
Crypto Engine | No |
Number of USB Modules | 1 |
USB Interface | None |
Number of CAN Modules | 0 |
Type of CAN module | None |
ADC Channels | 8 |
Max ADC Resolution (bits) | 10 |
Max ADC Sampling Rate (ksps) | 384 |
Number of DACs | 0 |
Input Capture | 3 |
Standalone Output Compare/ Standard PWM | 0 |
Motor Control PWM Channels | 0 |
Max 16 Bit Digital Timers | 3 |
Number of Comparators | 0 |
Internal Oscillator | 32Khz |
Max I/O Pins | 32 |
Pin Count | 64 |
Low Power | No |
Pins | Packaging | 64 | LQFP |
Temp Range | -40C to +85C |
Packing Media | Tray (160) |
Data Sheets |
---|
ARM7TDMI Technical Reference Manual Datasheet - This document may have been updated by ARM, please check the ARM web site for its latest version. |
SAM7S Series Datasheet |
Brochures |
---|
Atmel Flash Microcontroller Product Portfolio |
Product Selection Guide |
Atmel-Integrating the Internet of Things |
Supporting Collateral |
---|
Atmel ARM-based Flash Microcontrollers Optimized for Real-Time Control Applicat |
User Guides |
---|
AT91SAM7S-EK Evaluation Board User Guide |
JEDEC Indicator | e3 |
---|---|
ROHS | Compliant |
China EFUP | Compliant |
Device Weight (g) | 0.3683 |
Shipping Weight (kg) | 1.0875 |
Lead Count | 64 |
Package Type | LQFP |
Package Width or Size | 10x10x1.4mm |
Soldering Composition | Matte Tin |
LQFP, GREEN, IND TEMP, MRLD | Microchip Technology |
HighEnd MCU | Avnet America |
MCU 32-bit SAM7S ARM7TDMI RISC 256KB | RS |
Microchip ARM7TDMI SAM Microcontroller ARM7TDMI 55MHz 256KB / 64KB LQFP-64 32bit 256KB LQFP | Distrelec |
IC: ARM7TDMI microcontroller | Transfer Multisort Elektronik |
MC 32bit 1,8V 256kB Flash 55MHz LQFP64 | Schukat Electronic |
Mcu, 32Bit, Arm7, 55Mhz, Lqfp-64 | Newark Electronics |
MCU, 32BIT, ARM7, 55MHZ, LQFP-64 | element14 |
16/32-bit MCU | Micros |
AT91 Series 256 kB Flash 64 kB SRAM 55 MHz 16/32-Bit Microcontroller - LQFP-64 | Future Electronics |
Where can I find additional details, specifications and documents for a AT91SAM7S256D-AU?
Additional datasheets, footprints and schematics for AT91SAM7S256D-AU are listed on our Part Details page. You can also find images and similar parts to AT91SAM7S256D-AU on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for AT91SAM7S256D-AU on our Product Comparison page. Access via the 'View Pricing & Stock' button to view AT91SAM7S256D-AU price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does AT91SAM7S256D-AU fall under?
The AT91SAM7S256D-AU is listed under Semiconductors - ICs > Microcontrollers - MCU > 16 / 32 Bit Microcontrollers - MCU - ARM.
Can I view similar or alternative parts?
You can view similar parts to AT91SAM7S256D-AU when available in the 16 / 32 Bit Microcontrollers - MCU - ARM range under the specifications section at the bottom of the details page.
Who can I contact for technical support of the product?
Submit any questions directly to the customer support team of the distributor listing the product. For the AT91SAM7S256D-AU you can contact the distributor directly for product support, shipping queries etc.
Is the AT91SAM7S256D-AU RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for AT91SAM7S256D-AU have stock available?
Authorised distributors including Microchip Technology, Avnet America, RS, Distrelec and Transfer Multisort Elektronik have stock available or on a lead time for AT91SAM7S256D-AU.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for AT91SAM7S256D-AU often in real-time on the comparison pages.
What if I can't find stock of AT91SAM7S256D-AU?
You can fill out our help required form which you can use to request a quote for AT91SAM7S256D-AU from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.