AT91SAM7SE256B-AU Atmel, AT91SAM7SE256B-AU Datasheet - Page 194

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

Specifications of AT91SAM7SE256B-AU

• 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: *
• Core: ARM7TDMI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Figure 22-44. 0 Wait State, 16-bit Bus Width, Byte Transfer
194
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·
·
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Standard Read Protocol
Early Read Protocol
Byte Write Option
Byte Select Option
Read Access
Write Access
SAM7SE512/256/32 Preliminary
Internal Address Bus
D[15:0]
D[15:0]
D[15:0]
A[22:1]
NWR0
NWR1
NWE
MCK
NRD
NRD
NCS
NUB
NLB
addr X X X 0
addr X X X 0
B
XB
X B
1
B
1
1
1
addr X X X 0
addr X X X 1
B
B
2
2
B
B
X
2
2
X
6222F–ATARM–14-Jan-11