AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 759

• Manufacturer Part Number: AT91SAM7S256D-AU
• Description: ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
• Manufacturer: Atmel
• Series: SAM7S256r

Specifications of AT91SAM7S256D-AU

• Rohs: yes
• Core: ARM
• Processor Series: AT91SAM
• Data Bus Width: 16 bit/32 bit
• Maximum Clock Frequency: 55 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-64
• Mounting Style: SMD/SMT
• Interface Type: 2-Wire, I2S, SPI, USART
• Length: 7 mm

Version
6175H
Version
6175G
Comments (Continued)
All AT91SAM7S:
“Analog-to-Digital Converter (ADC)”
“USART: DCD is active High instead of Low”
“SPI: Bad Serial Clock Generation on 2nd Chip Select”
“SPI: Bad Behavior when CSAAT = 1 and SCBR =
AT91SAM7S256 Mfg # 58818C, AT91SAM7S256 Parts.A, AT91SAM7S128 Mfg # 58818C,
AT91SAM7S128 Parts A,
added the following:
Section 40.6.14.2 ”WDT: The Watchdog Timer Status Register and Interrupt”
Section 40.7.13.2 ”WDT: The Watchdog Timer Status Register and Interrupt”
Section 40.11.14.2 ”WDT: The Watchdog Timer Status Register and Interrupt”
Section 40.12.13.2 ”WDT: The Watchdog Timer Status Register and Interrupt”
AT91SAM7S512
AT91SAM7S512/256/128, added the following: (and in newly added “B Parts”)
Section 40.4.9.4 ”USART: RXBRK Flag Error in Asynchronous Mode”
Section 40.6.12.4 ”USART: RXBRK Flag Error in Asynchronous Mode”
Section 40.11.12.4 ”USART: RXBRK Flag Error in Asynchronous Mode”
Section 40.12.11.4 ”USART: RXBRK Flag Error in Asynchronous Mode”
Comments
Added note to
TC: added
SAM-BA Boot:
no longer available on web.)
UDP:
Errata: items added to the Errata Sections listed below.
Section 40.6 ”SAM7S256 Errata - Manufacturing Number 58818C”
Section 40.7 ”SAM7S256 Errata - Revision A Parts”
Section 40.11 ”SAM7S128 Errata - Manufacturing Number 58818C”
Section 40.12 ”SAM7S128 Errata - Revision A Parts”
Watchdog Timer:”The Watchdog Timer May Lock the Device in a Reset State”
Real-time Timer: “RTT_VR May be Corrupted”
Power Management Controller: “Slow Clock Selected in PMC and a Transition Occurs on PA1” and
“Programming CSS in PMC_MCKR Register”
Table 35-2, “USB Communication
Figure 32-2 ”Clock Chaining Selection” page 393
Section 40.4.9.1 ”USART: CTS in Hardware Handshaking”
“Description” on page 3
Section 21.5.3 ”USB Device
, errata applies to all AT91SAM7S products.
Flow”, Isochronous supported endpoint size is 64.
, errata applies to all AT91SAM7S products.
Port”reference to INF example and lit°6123 removed. (Doc
1”, errata applies to all AT91SAM7S products.
, errata applies to all AT91SAM7S products.
updated
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
Change
Request
Ref.
3442
3342
3647
3475
3652
Change
Request
Ref.
4752
rfo
3811
3954
4646
759