SAM7SE256 Atmel Corporation, SAM7SE256 Datasheet - Page 632

• 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

40.8.4
Table 40-23.
Note:
Table 40-24.
Note:
Table 40-25. SAM7SE512/256 SMC Write Signals
632
Symbol
SMC
SMC
Symbol
SMC
SMC
Symbol
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
7
8
7
8
15
16
17
18
19
20
21
22
23
1. n = Number of standard Wait States inserted.
1. n = Number of standard Wait States inserted.
SAM7SE512/256/32
SMC Signals
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)
Parameter
NCS Minimum Pulse Width
(Address to Chip Select Setup)
NWAIT Minimum Pulse Width
Parameter
NCS Minimum Pulse Width
(Address to Chip Select Setup)
NWAIT Minimum Pulse Width
SAM7SE512/256 General-purpose SMC Signals
SAM7SE32 General-purpose SMC Signals
(3)
These timings are given for a maximum 10 pF load on SDCK and a maximum 50 pF load on the
databus.
.
(3))
(3)
(3)
(3)
(3)
(3)
(3)
(3)
Conditions
Conditions
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
(n + 1)
(n + 1)
(n + 1)
(n + 1)
x
x
x
x
t
t
t
t
t
t
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
Min
Min
h
h
0.5 * t
n
0.5 * t
0.5 * t
0.5 * t
n
0.5 * t
0.5 * t
x
x
x
x
t
t
t
CPMCK
CPMCK
CPMCK
t
- 2.5
- 3.0
- 2.5
- 5.0
CPMCK
CPMCK
CPMCK
CPMCK
Min
7.0
9.5
7.5
8.5
7.0
9.0
CPMCK
CPMCK
CPMCK
10
8
(1)
(1)
(1)
(1)
- 5.7
- 8.0
- 0.5
- 1
- 0.5
- 5.7
- 5.2
- 1
- 8
- 8
(1)
(1)
(2)
(2)
Max
Max
Max
6222F–ATARM–14-Jan-11
Units
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