AT91SAM7S256C-MU Atmel, AT91SAM7S256C-MU Datasheet - Page 766

• 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

756
Version
6175F
Version
6175E
AT91SAM7S Series Preliminary
Comments (Continued)
Section 40. ”Errata”
TWI: Behavior of OVRE bit: eliminated.
change or added to all:
PIO: Leakage on PA17 - PA20...”
RTT: Possible Event Loss when Reading RTT_SR
SPI: Chip Select and Fixed Mode
SPI: Baudrate Set to 1
SPI: Disable in Slave Mode
TWI: Software Reset
USART: Hardware Handshaking – Two Characters are Sent
USART: XOFF Character Bad Behavior
added to AT91SAM7S64/32 only:
SPI: Disable Issue
SPI: Software Reset and SPIEN Bit
SPI: CSAAT = 1 and Delay
Change to AT91SAM7S321 only:
Voltage Regulator errata removed.
PWM: Constraints on Duty Cycle Value, updated all
Comments
“Features” on page
Pinout”“Absolute Maximum Ratings” on page
page
Section 39. ”AT91SAM7S Ordering
Section 40. ”Errata”
Section 40. ”Errata”
Section 40. ”Errata”
537and
Added
1,
QFN package errata added,
SPI: SPCK Behavior in Master Mode added.
PIO: Leakage in worst case changed to 9 µA.
Table 1-1, “Configuration Summary,” on page
Section 40.1 ”Marking”
the leakage can be 9 µA in worst case...”
Information”QFN package information added.
553,
Table 37-1, “Thermal Resistance Data,” on
3,
Section 4. ”Package and
6175K–ATARM–30-Aug-10
Change
Request
Ref.
3173
Change
Request
Ref
#2403
#2453
#2607