AT32UC3C2512C Atmel Corporation, AT32UC3C2512C Datasheet - Page 334

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AT32UC3C2512C

Manufacturer Part Number
AT32UC3C2512C
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of AT32UC3C2512C

Flash (kbytes)
512 Kbytes
Pin Count
64
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
45
Ext Interrupts
64
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
5
Twi (i2c)
2
Uart
4
Can
2
Lin
4
Ssc
1
Ethernet
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
11
Adc Resolution (bits)
12
Adc Speed (ksps)
2000
Analog Comparators
2
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
12
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
68
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0 to 3.6 or 4.5 to 5.5
Operating Voltage (vcc)
3.0 to 3.6 or 4.5 to 5.5
Fpu
Yes
Mpu / Mmu
Yes / No
Timers
3
Output Compare Channels
13
Input Capture Channels
6
Pwm Channels
14
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes

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18.6.7.4
Figure 18-29. NWAIT Latency
32117C–AVR-08/11
nternally synchronized
NWAIT signal
A[AD_MSB:2]
NBS0, NBS1,
CLK_SMC
A0, A1
NWAIT
NWAIT latency and read/write timings
NRD
There may be a latency between the assertion of the read/write controlling signal and the asser-
tion of the NWAIT signal by the device. The programmed pulse length of the read/write
controlling signal must be at least equal to this latency plus the two cycles of resynchronization
plus one cycle. Otherwise, the SMC may enter the hold state of the access without detecting the
NWAIT signal assertion. This is true in frozen mode as well as in ready mode. This is illustrated
on
When the MODE.EXNWMODE field is enabled (ready or frozen), the user must program a pulse
length of the read and write controlling signal of at least:
Figure 18-29 on page
4
minimal pulse length
NWAIT latency 2 cycle resynchronization
3
Minimal pulse length
334.
2
EXNWMODE = 2 or 3
READMODE = 1 (NRD controlled)
NRDPULSE = 5
=
Read cycle
NWAIT latency
1
0
+
2 synchronization cycles
0
Wait STATE
0
AT32UC3C
+
1 cycle
334

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