AT91SAM7S256C-MU Atmel, AT91SAM7S256C-MU Datasheet - Page 762

• Manufacturer Part Number: AT91SAM7S256C-MU
• Description: IC ARM7 MCU 32BIT 256K 64-QFN
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S256C-MU

• 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: 32
• 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-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
• Processor Series: AT91
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 64 KB
• Interface Type: SPI, TWI, USART, USB
• Maximum Clock Frequency: 55 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 5
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• 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-MU; AT91SAM7S256-MU

752
Version
6175H
Version
6175G
AT91SAM7S Series Preliminary
Comments (Continued)
All AT91SAM7S:
“Analog-to-Digital Converter
“USART: DCD is active High instead of
“SPI: Bad Serial Clock Generation on 2nd Chip
“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 40.10.14.2 ”WDT: The Watchdog Timer Status Register and Interrupt”
Section 40.11.13.2 ”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 40.10.12.4 ”USART: RXBRK Flag Error in Asynchronous Mode”
Section 40.11.11.4 ”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 ”AT91SAM7S256 Errata - Manufacturing Number 58818C”
Section 40.7 ”AT91SAM7S256 Errata - Revision A Parts”
Section 40.10 ”AT91SAM7S128 Errata - Manufacturing Number 58818C”
Section 40.11 ”AT91SAM7S128 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
(ADC)”, errata applies to all AT91SAM7S products.
Low”, errata applies to all AT91SAM7S products.
Flow”, Isochronous supported endpoint size is 64.
Port”reference to INF example and lit°6123 removed. (Doc
Select”, errata applies to all AT91SAM7S products.
1”, errata applies to all AT91SAM7S products.
updated
6175K–ATARM–30-Aug-10
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