AT32UC3L064 Atmel Corporation, AT32UC3L064 Datasheet - Page 797

• Manufacturer Part Number: AT32UC3L064
• Manufacturer: Atmel Corporation

Specifications of AT32UC3L064

• Flash (kbytes): 64 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 50 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 17
• Hardware Qtouch Acquisition: Yes
• Max I/o Pins: 36
• Ext Interrupts: 36
• Usb Speed: No
• Usb Interface: No
• Spi: 5
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 460
• Analog Comparators: 8
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 16
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.62 to 3.6
• Operating Voltage (vcc): 1.62 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 18
• Input Capture Channels: 12
• Pwm Channels: 35
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Table 32-42. TWI-Bus Timing Requirements
Notes:
32099G–06/2011
t
t
t
t
t
f
SU-DAT-TWI
SU-DAT
LOW-TWI
LOW
HIGH
TWCK
Symbol
1. Standard mode:
2. A device must internally provide a hold time of at least 300 ns for TWD with reference to the falling edge of TWCK.
Data set-up time
TWCK LOW period
TWCK HIGH period
TWCK frequency
Parameter
Notations:
C
t
t
The maximum t
of TWCK.
f
clkpb
prescaled
TWCK
b
= total capacitance of one bus line in pF
= period of TWI peripheral bus clock
≤
100 kHz
= period of TWI internal prescaled clock (see chapters on TWIM and TWIS)
Standard
Fast
-
Standard
Fast
-
Standard
Fast
Standard
Fast
; fast mode:
HD;DAT
Mode
has only to be met if the device does not stretch the LOW period (t
Requirement
f
TWCK
250
100
4.7
1.3
4.0
0.6
-
-
>
100 kHz
Minimum
-
.
Device
2t
4t
8t
t
t
clkpb
clkpb
clkpb
clkpb
clkpb
AT32UC3L016/32/64
Requirement
100
400
Maximum
-
-
-
-
-
----------------------- -
12t clkpb
Device
1
LOW-TWI
Unit
kHz
μs
μs
797
ns
-
-
)