SAM3U2E Atmel Corporation, SAM3U2E Datasheet - Page 1150

• Manufacturer Part Number: SAM3U2E
• Manufacturer: Atmel Corporation

Specifications of SAM3U2E

• Flash (kbytes): 128 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 96 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 57
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 96
• Ext Interrupts: 96
• Usb Transceiver: 1
• Quadrature Decoder Channels: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device
• Spi: 5
• Twi (i2c): 2
• Uart: 5
• Ssc: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 16
• Adc Resolution (bits): 12
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 36
• Self Program Memory: YES
• External Bus Interface: 1
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.62 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: Yes

43.9.8
Table 30 describes the requirements for devices connected to the Two-wire Serial Bus. For timing symbols refer to
43-30.
Table 43-53. Two-wire Serial Bus Requirements
Note:
1150
Symbol
V
V
V
V
t
t
C
f
Rp
t
t
t
t
t
t
t
t
r
of
TWCK
LOW
HIGH
HD;STA
SU;STA
HD;DAT
SU;DAT
SU;STO
HD;STA
OL
IL
IH
hys
i
(1)
1. Required only for f
2. C
3.
4.
5. T
SAM3U Series
Two-wire Serial Interface Characteristics
The TWCK low Period is defined as follow:
The TWCK high period is defined as follows:
Parameter
Input Low-voltage
Input High-voltage
Hysteresis of Schmitt Trigger Inputs
Output Low-voltage
Rise Time for both TWD and TWCK
Output Fall Time from V
Capacitance for each I/O Pin
TWCK Clock Frequency
Value of Pull-up resistor
Low Period of the TWCK clock
High period of the TWCK clock
Hold Time (repeated) START Condition
Set-up time for a repeated START condition
Data hold time
Data setup time
Setup time for STOP condition
Hold Time (repeated) START Condition
CP_MCK
b
= capacitance of one bus line in pF. Per I2C Standard compatibility, C
= MCK Bus Period.
TWCK
> 100 kHz.
IHmin
to V
ILmax
T
low
T
high
=
(
=
(
CLDIV
10 pF < C
(
3 mA sink current
(
f
f
f
f
f
f
f
f
f
CHDIV
f
f
f
f
f
f
f
f
f
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
Figure 43-30
Condition
×
> 100 kHz
> 100 kHz
> 100 kHz
> 100 kHz
> 100 kHz
> 100 kHz
> 100 kHz
> 100 kHz
> 100 kHz
≤ 100 kHz
≤ 100 kHz
≤ 100 kHz
≤ 100 kHz
≤ 100 kHz
≤ 100 kHz
≤ 100 kHz
≤ 100 kHz
≤ 100 kHz
2
b
×
CKDIV
< 400 pF
2
CKDIV
)
+
b
)
4 )
Max = 400pF
+
×
4 )
T
×
MCK
T
20 + 0.1C
20 + 0.1C
V
------------------------------------- -
MCK
V
------------------------------------- -
VDDIO
0.7xV
VDDIO
t
t
T
T
LOW -
LOW -
0.150
CP_MCK
CP_MCK
3mA
t
t
t
t
t
t
t
t
-0.3
Min
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
(3)
(3)
(4)
(4)
3mA
–
0
0
0
-
VDDIO
–
3 x
3 x
–
b
b
0,4V
(1)(2)
(1)(2)
0,4V
3 x T
3 x T
0.3 V
V
6430E–ATARM–29-Aug-11
1000ns
------------------ -
CC
300ns
--------------- -
Max
300
250
400
0.4
C
10
C
CP_MCK
CP_MCK
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
+ 0.3
VDDIO
b
b
Figure
Units
kHz
pF
ns
ns
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
ns
ns
μs
μs
μs
μs
V
V
V
V
Ω
Ω