AT91SAM7SE256B-CU Atmel, AT91SAM7SE256B-CU Datasheet - Page 189

• Manufacturer Part Number: AT91SAM7SE256B-CU
• Description: IC ARM7 MCU FLASH 256K 144-LFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7SE256B-CU

• 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 22-39. 1 Wait State, 16-bit Bus Width, Word Transfer
6222F–ATARM–14-Jan-11
·
·
·
Standard Read Protocol
Write Access
Early Read Protocol
Byte Write/
Byte Select Option
Read Access
D[15:0]
D[15:0]
D[15:0]
A[22:1]
NWE
MCK
NRD
NRD
NCS
NUB
NLB
1 Wait State
addr
B
SAM7SE512/256/32 Preliminary
B
2
B
2
B
1
1
B
2
B
1
1 Wait State
addr+1
B
4
B
3
B
4
B
3
B
4
B
3
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