SAM7SE256 Atmel Corporation, SAM7SE256 Datasheet - Page 633

• Manufacturer Part Number: SAM7SE256
• Manufacturer: Atmel Corporation

Specifications of SAM7SE256

• Flash (kbytes): 256 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 48 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 88
• Ext Interrupts: 88
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 1
• Uart: 3
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: sdram
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

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
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
SAM7SE512/256/32
- 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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