AT91SAM7S256C-AU Atmel, AT91SAM7S256C-AU Datasheet

AT91SAM7S256C-AU

Manufacturer Part Number

AT91SAM7S256C-AU

Description

IC ARM7 MCU 32BIT 256K 64LQFP

Manufacturer

Atmel

Series

AT91SAMr

Datasheets

1.AT91SAM7S16-MU.pdf (51 pages)

2.AT91SAM7S16-MU.pdf (779 pages)

3.AT91SAM7S256C-MU.pdf (2 pages)

4.AT91SAM7S256C-AU.pdf (781 pages)

Specifications of AT91SAM7S256C-AU

Core Processor

ARM7

Core Size

16/32-Bit

Speed

55MHz

Connectivity

I²C, SPI, SSC, UART/USART, USB

Peripherals

Brown-out Detect/Reset, DMA, POR, PWM, WDT

Number Of I /o

Program Memory Size

256KB (256K x 8)

Program Memory Type

FLASH

Ram Size

64K x 8

Voltage - Supply (vcc/vdd)

1.65 V ~ 1.95 V

Data Converters

A/D 8x10b

Oscillator Type

Internal

Operating Temperature

-40°C ~ 85°C

Package / Case

64-LQFP

Core

ARM7TDMI

Cpu Family

AT91

Device Core

ARM7TDMI

Device Core Size

32b

Frequency (max)

55MHz

Total Internal Ram Size

64KB

# I/os (max)

Number Of Timers - General Purpose

Operating Supply Voltage (typ)

1.8/3.3V

Operating Supply Voltage (max)

1.95/3.6V

Operating Supply Voltage (min)

1.65/3V

On-chip Adc

8-chx10-bit

Instruction Set Architecture

RISC

Operating Temp Range

-40C to 85C

Operating Temperature Classification

Industrial

Mounting

Surface Mount

Pin Count

Package Type

LQFP

For Use With

AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Eeprom Size

Lead Free Status / Rohs Status

Details

Other names

AT91SAM7S256-AU-001
AT91SAM7S256AU001
AT91SAM7S256AU001

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

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Bonase Electronics (HK) Co., Limited

Part Number:

AT91SAM7S256C-AU

Manufacturer:

ATMEL

Quantity:

513

Company:

BOSTOCK HK LIMITED

Part Number:

AT91SAM7S256C-AU

Manufacturer:

Atmel

Quantity:

10 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

AT91SAM7S256C-AU

Manufacturer:

ATMEL/爱特梅尔

Quantity:

20 000

Company:

BOSTOCK HK LIMITED

Part Number:

AT91SAM7S256C-AU-999

Manufacturer:

Atmel

Quantity:

10 000

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Subject:

Date:

Device Part Numbers Affected (all Date Codes)

Watchdog Timer (WDT)

Under certain rare circumstances, if the Watchdog Timer is used with the Watchdog Reset enabled (WDRSTEN set at 1), the

watchdog timer may lock the device in a reset state when the user restarts the watchdog (WDDRSTT). The only way to recover

from this state is a power-on reset. The issue depends on the values of WDD and WDV in register WDT_MR.

Workaround:

Two workarounds are possible.

0xFFF, 0xDFF, 0xBFF, 0x9FF, 0x7FF, 0x77F,0x6FF, 0x67F,0x5FF, 0x57F,0x4FF,0x47F,0x3FF,0x37F, 0x2FF, 0x27F, 0x1FF,

0x1BF, 0x17F, 0x13F, 0x0FF, 0x0DF, 0x0BF, 0x09F, 0x07F, 0x06F, 0x05F, 0x04F, 0x03F, 0x037, 0x02f, 0x027, 0x01F, 0x01B,

0x017, 0x013 and 0x00F.

Real-time Timer (RTT)

Under certain rare circumstances, the Real-time Timer Value (RTT_VR) may be corrupted.

Workaround

Use RTTINC as an increment for a software counter.

Slow clock selected in PMC and a Transition occurs on PA1

Under certain rare circumstances, when CSS=00 in PMC_MCKR, and PA1 is set as an input, and a transition occurs on PA1,

device malfunction might occur.

Workaround

Do not transition PA1 as an input when CSS=00 in PMC_MCKR.

contains information from Atmel which may be privileged, confidential, and exempt from disclosure under applicable law. If you have received

IMPORTANT/CONFIDENTIAL: This message is intended only for the use of the individual or entity to which it is addressed. This message

this communication in error, please notify us immediately. We will be happy to arrange for the return of this message at no cost to you.

AT91SAM7S256-AU-001

AT91SAM7S256-AU-999

AT91SAM7S256-MU

AT91SAM7S256-MU-999

Either do not use the Watchdog Timer with the Watchdog Reset enabled (WDRSTEN set at 1),

or set WDD to 0xFFF and in addition use only one of the following values for WDV:

AT91SAM7S256 and AT91SAMS128 Errata Update

November 13

Tel.: (+33) 4 42 53 60 00 Fax.: (+33) 4 42 53 60 01 www.atmel.com

Atmel Rousset Zone Industrielle 13106 Rousset Cedex France

, 2006

Page 1 of 2

AT91SAM7S128-AU-001

AT91SAM7S128-AU-999

AT91SAM7S128-MU

AT91SAM7S128-MU-999

AT91SAM7S256 and AT91SAMS128 Errata Update

Related parts for AT91SAM7S256C-AU

AT91SAM7S256C-AU Summary of contents

Page 1

... IMPORTANT/CONFIDENTIAL: This message is intended only for the use of the individual or entity to which it is addressed. This message contains information from Atmel which may be privileged, confidential, and exempt from disclosure under applicable law. If you have received this communication in error, please notify us immediately. We will be happy to arrange for the return of this message at no cost to you. ...

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