AT91SAM7SE256B-AUR Atmel, AT91SAM7SE256B-AUR Datasheet - Page 8

• 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

Table 3-1.
Note:
8
Signal Name
NANDCS
NANDOE
NANDWE
NANDCLE
NANDALE
SDCK
SDCKE
SDCS
BA[1:0]
SDWE
RAS - CAS
NBS[3:0]
SDA10
1. Refer to
SAM7SE512/256/32 Preliminary
Signal Description List (Continued)
Section 6. ”I/O Lines Considerations”
NAND Flash Output Enable
NAND Flash Write Enable
Function
NAND Flash Chip Select Line
NAND Flash Command Line Enable
NAND Flash Address Line Enable
SDRAM Clock
SDRAM Clock Enable
SDRAM Controller Chip Select Line
Bank Select
SDRAM Write Enable
Row and Column Signal
Byte Mask Signals
SDRAM Address 10 Line
EBI for NAND Flash Support
SDRAM Controller
.
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Type
Active
Level
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Comments
Tied low after reset
6222F–ATARM–14-Jan-11