AT91SAM7SE256B-CUR Atmel, AT91SAM7SE256B-CUR Datasheet - Page 445

• Manufacturer Part Number: AT91SAM7SE256B-CUR
• Description: IC ARM7 MCU FLASH 256K 128-LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7SE256B-CUR

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: EBI/EMI, I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 88
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K 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: *
• Processor Series: SAM7SE256
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: SPI, USB
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 88
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 85 C
• Processor To Be Evaluated: AT91SAM7SE256B
• Supply Current (max): 60 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

6222F–ATARM–14-Jan-11
Table 34-1.
• Four output signals on I/O lines 4 to 7 (to drive LEDs for example), driven high and low, no
• Four input signals on I/O lines 8 to 11 (to read push-button states for example), with pull-up
• Four input signals on I/O line 12 to 15 to read an external device status (polled, thus no input
• I/O lines 16 to 19 assigned to peripheral A functions with pull-up resistor
• I/O lines 20 to 23 assigned to peripheral B functions, no pull-up resistor
• I/O line 24 to 27 assigned to peripheral A with Input Change Interrupt and pull-up resistor
pull-up resistor
resistors, glitch filters and input change interrupts
change interrupt), no pull-up resistor, no glitch filter
PIO_OWER
PIO_OWDR
PIO_SODR
PIO_CODR
PIO_MDER
PIO_MDDR
PIO_PUDR
PIO_PUER
PIO_ODR
PIO_IFER
PIO_IFDR
PIO_PDR
PIO_OER
PIO_PER
PIO_ASR
PIO_BSR
Register
PIO_IDR
PIO_IER
Programming Example
SAM7SE512/256/32 Preliminary
Value to be Written
0x0FFF F0FF
0x0FFF FFFF
0x0FFF FFF0
0x0FFF FFF0
0x0000 FFFF
0x0FFF FF00
0x00FF F0FF
0x0F0F FF0F
0x0FFF 0000
0x0000 00FF
0x0000 0F00
0x0F00 0F00
0x0000 000F
0x00F0 00F0
0x0F0F 0000
0x00F0 0000
0x0000 000F
0x0000 0000
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