SAM7SE256 Atmel Corporation, SAM7SE256 Datasheet - Page 634

• 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 40-27. SAM7SE512/256 SMC Read Signals
Notes:
Table 40-28. SAM7SE32 SMC Read Signals
634
Symbol
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
Symbol
SMC
SMC
SMC
SMC
35
36
37
38
40
41
42
43
44
45
35
36
37
38
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.
SAM7SE512/256/32
Parameter
NRD High to NUB Change
NRD High to NLB/A0 Change
NRD High to A1-A22 Change
NRD High to Chip Select Inactive
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
Parameter
NRD High to NUB Change
NRD High to NLB/A0 Change
NRD High to A1-A22 Change
NRD High to Chip Select
Inactive
(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
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
Conditions
(h
(h
(2
(2
(h
(h
(h
(h
(h
(h
(n +1)
(n +1)
x
x
(h
x
x
(h
(h
x
x
x
x
x
x
(h
(h
(h
(h
(h
t
t
n +1)
n +1)
CPMCK
CPMCK
t
t
t
t
t
t
x
x
x
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
x
x
x
x
x
t
t
t
Min
CPMCK
CPMCK
CPMCK
t
x
t
t
t
t
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
x
t
22.2
23.2
CPMCK
x
x
Min
t
) - 1.5
) - 2.5
1
1
35
37
CPMCK
0.5
0.5
) - 2
) - 2
) - 2
) - 3
) - 3
) - 3
0
0
0
0
(3)
(3)
) - 3.5
) - 1.5
) - 1.5
) - 3
) - 2
) - 2
) - 2
) - 2
x
x
(4)
(4)
(4)
(4)
(4)
(4)
- 1.5
(4)
(4)
t
t
- 1
CPMCK
CPMCK
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(3)
(3)
-
-
(h
(h
(h
(h
(h
(h
(h
(h
(h
(h
(h
(h
(h
(h
(h
(h
x
x
x
x
x
x
x
x
x
x
t
t
t
x
x
x
x
CPMCK
CPMCK
CPMCK
x
x
t
t
t
t
t
t
t
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
t
t
t
t
t
t
CPMCK
CPMCK
CPMCK
CPMCK
Max
CPMCK
CPMCK
Max
)+ 1.5
)+ 1.5
)+ 6.5
)+ 7
)+ 3
)+ 8
)+ 2
)+ 2
)+ 1.5
)+ 3.5
)+ 1
)+ 1
)+ 1
)+ 2
)+ 1
)+ 2
6222F–ATARM–14-Jan-11
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
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
ns
ns