AT91SAM7SE256B-CUR Atmel, AT91SAM7SE256B-CUR Datasheet - Page 633

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

Specifications of AT91SAM7SE256B-CUR

• 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 40-25. SAM7SE512/256 SMC Write Signals (Continued)
Notes:
Table 40-26. SAM7SE32 SMC Write Signals
Notes:
6222F–ATARM–14-Jan-11
Symbol
SMC
SMC
Symbol
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
26
27
15
16
17
18
19
20
21
22
23
26
27
1. n = Number of standard Wait States inserted.
2. h = Number of Hold Cycles inserted.
3. Not applicable when Address to Chip Select Setup Cycles are inserted.
1. n = Number of standard Wait States inserted.
2. h = Number of Hold Cycles inserted.
3. Not applicable when Address to Chip Select Setup Cycles are inserted.
Parameter
NWR Minimum Pulse Width
(No Wait States)
NWR Minimum Pulse Width
(Wait States)
Parameter
NWR High to NUB Change
NWR High to NLB/A0 Change
NWR High to A1 - A22 Change
NWR High to Chip Select Inactive
Data Out Valid before NWR High
(No Wait States)
Data Out Valid before NWR High
(Wait States)
Data Out Valid after NWR High
(No Wait States)
Data Out Valid after NWR High
(Wait States without Hold Cycles)
Data Out Valid after NWR High
(Wait States with Hold Cycles)
NWR Minimum Pulse Width
(No Wait States)
NWR Minimum Pulse Width
(Wait States)
(3)
(3)
(3)
.
(3))
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
Conditions
Conditions
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
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
3.3V domain
1.8V domain
SAM7SE512/256/32 Preliminary
0.5 * t
n
n
0.5 * t
0.5 * t
n
n
0.5 * t
0.5 * t
h
0.5 * t
0.5 * t
n
n
0.5 * t
h
0.5 * t
0.5 * t
x
x
x
x
x
x
x
x
t
t
t
t
t
t
t
t
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
Min
Min
CPMCK
6.0
9.0
6.0
9.0
6.0
9.0
5.5
9.0
CPMCK
- 1.5
- 1.5
- 3.5
- 6.0
- 6.0
- 2.5
- 7.0
- 12
- 1.5
- 3.5
- 6.0
- 5.5
- 5.2
- 2.0
- 6.5
- 12
- 1
- 8
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
Max
Max
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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