AT91SAM7SE256B-AUR Atmel, AT91SAM7SE256B-AUR Datasheet - Page 137

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

Specifications of AT91SAM7SE256B-AUR

• 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

21.3
Table 21-1.
6222F–ATARM–14-Jan-11
Name
D[31:0]
A[22:0]
NWAIT
NCS[7:0]
NWR[1:0]
NRD
NWE
NUB
NLB
CFCE[2:1]
CFOE
CFWE
CFIOR
CFIOW
CFRNW
CFCS[1:0]
NANDCS
NANDOE
NANDWE
NANDCLE
NANDALE
SDCK
SDCKE
SDCS
BA[1:0]
SDWE
RAS - CAS
NBS[3:0]
SDA10
I/O Lines Description
I/O Lines Description
Data Bus
Address Bus
External Wait Signal
Chip Select Lines
Read Signal
NLB: Lower Byte Select
CompactFlash Chip Enable
CompactFlash Output Enable
CompactFlash Write Enable
CompactFlash I/O Read Signal
CompactFlash I/O Write Signal
CompactFlash Read Not Write Signal
CompactFlash Chip Select Lines
NAND Flash Chip Select Line
NAND Flash Output Enable
NAND Flash Write Enable
NAND Flash Command Line Enable
NAND Flash Address Line Enable
SDRAM Clock
SDRAM Clock Enable
SDRAM Controller Chip Select Line
Row and Column Signal
Function
Write Signals
Write Enable
NUB: Upper Byte Select
Bank Select
SDRAM Write Enable
Byte Mask Signals
SDRAM Address 10 Line
EBI for CompactFlash Support
EBI for NAND Flash Support
SDRAM Controller
SMC
EBI
SAM7SE512/256/32 Preliminary
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Type
Input
I/O
Active Level
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
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