SAM7XC256 Atmel Corporation, SAM7XC256 Datasheet - Page 86
SAM7XC256
Manufacturer Part Number
SAM7XC256
Description
Manufacturer
Atmel Corporation
Specifications of SAM7XC256
Flash (kbytes)
256 Kbytes
Pin Count
100
Max. Operating Frequency
55 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
62
Ext Interrupts
62
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
2
Twi (i2c)
1
Uart
3
Can
1
Ssc
1
Ethernet
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
Dac Resolution (bits)
No
Temp. Sensor
No
Crypto Engine
AES/DES
Sram (kbytes)
64
Self Program Memory
NO
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.3
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
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Memory Interface
3-16
If ALE is to be used to change address timing, then you must tie APE HIGH. Similarly,
if APE is to be used, ALE must be tied HIGH.
You can obtain better system performance when the address pipeline is enabled with
APE HIGH. This allows longer time for address decoding.
Note
Copyright © 1994-2001. All rights reserved.
nMREQ
D[31:0]
A[31:0]
MCLK
SEQ
APE
ALE
Figure 3-10 SRAM compatible address timing
ARM DDI 0029G
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