AT91SAM7SE256B-AUR Atmel, AT91SAM7SE256B-AUR Datasheet - Page 635

• 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 40-28. SAM7SE32 SMC Read Signals (Continued)
Notes:
6222F–ATARM–14-Jan-11
Symbol
SMC
SMC
SMC
SMC
SMC
SMC
40
41
42
43
44
45
1. Early Read Protocol.
2. Standard Read Protocol.
3. n = Number of standard Wait States inserted.
4. h = Number of Hold Cycles inserted.
5. Not applicable when Address to Chip Select Setup Cycles are inserted.
Parameter
Data Setup before NRD High
Data Hold after NRD High
Data Setup before NCS High
Data Hold after NCS High
NRD Minimum Pulse Width
NRD Minimum Pulse Width
(1) (5)
(2) (5)
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
Conditions
(2
(2
x
SAM7SE512/256/32 Preliminary
(n +1)
(n +1)
n +1)
x
n +1)
x
x
x
0.5
6.5
23.2
25.2
x
Min
t
t
CPMCK
CPMCK
37
39
-0
-0
0.5
0
0
(3)
x
t
x
CPMCK
t
- 2
- 6
CPMCK
(3)
(3)
- 2
-
(3)
Max
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
635