SAM3N2A Atmel Corporation, SAM3N2A Datasheet - Page 726
SAM3N2A
Manufacturer Part Number
SAM3N2A
Description
Manufacturer
Atmel Corporation
Specifications of SAM3N2A
Flash (kbytes)
128 Kbytes
Pin Count
48
Max. Operating Frequency
48 MHz
Cpu
Cortex-M3
# Of Touch Channels
23
Hardware Qtouch Acquisition
No
Max I/o Pins
47
Ext Interrupts
47
Quadrature Decoder Channels
2
Usb Speed
No
Usb Interface
No
Spi
2
Twi (i2c)
2
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)
16
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
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
no / no
Timers
6
Output Compare Channels
6
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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35.8.5
Table 35-39
ure
Table 35-39. Two-wire Serial Bus Requirements
Note:
726
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)
35-19.
1. Required only for f
2. C
3.
4.
5. T
SAM3N
Two-wire Serial Interface Characteristics
The TWCK low Period is defined as follows:
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
describes the requirements for devices connected to the Two-wire Serial Bus. For timing symbols refer to
b
= capacitance of one bus line in pF. Per I2C Standard, C
= MCK Bus Period.
TWCK
> 100 kHz.
IHmin
to V
ILmax
T
T
low
high
=
10 pF < C
=
(
3 mA sink current
f
f
f
f
f
f
f
f
f
(
f
f
f
f
f
f
f
f
f
(
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
CLDIV
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
TWCK
(
Figure 35-19
CHDIV
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
b
Max = 400pF
b
×
< 400 pF
×
2
CKDIV
2
CKDIV
)
+
)
4 )
+
4 )
×
20 + 0.1C
20 + 0.1C
V
------------------------------------- -
×
T
V
------------------------------------- -
VDDIO
0.7xV
T
T
MCK
VDDIO
t
t
T
LOW -
LOW -
CP_MCK
CP_MCK
MCK
0.150
3mA
t
t
t
t
t
t
t
t
Min
-0.3
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
3mA
(3)
(3)
(4)
(4)
–
0
0
0
-
VDDIO
–
3 x
3 x
–
b
b
0,4V
(5)
(5)
(1)(2)
(1)(2)
0,4V
3 x T
3 x T
0.3 V
V
1000ns
------------------ -
CC
300ns
--------------- -
Max
300
250
400
CP_MCK
CP_MCK
0.4
C
10
11011A–ATARM–04-Oct-10
C
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
+ 0.3
VDDIO
b
b
(5)
(5)
Units
kHz
pF
ns
ns
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
ns
ns
µs
µs
µs
µs
Ω
Ω
V
V
V
V
Fig-
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