SAM3N4B Atmel Corporation, SAM3N4B Datasheet - Page 698

• Manufacturer Part Number: SAM3N4B
• Manufacturer: Atmel Corporation

Specifications of SAM3N4B

• Flash (kbytes): 256 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 48 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 79
• Ext Interrupts: 79
• Quadrature Decoder Channels: 2
• Usb Speed: No
• Usb Interface: No
• Spi: 3
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 10
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 24
• 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

Table 35-3.
Notes:
698
Symbol
V
V
V
I
D
V
V
V
V
I
CD
CD
T
T
LOAD
Q
ON
OFF
ACCURACY
VDDIN
VDDOUT
LINE
LINE-TR
LOAD
LOAD-TR
DROPOUT
IN
OUT
1. A 10µF or higher ceramic capacitor must be connected between VDDIN and the closest GND pin of the device.
2. To ensure stability, an external 1µF output capacitor, CD
3. At power-up VDDIO needs to reach 0.6V before VDDIN reaches 1.0V
4. VDDIO voltage needs to be equal or below to (VDDIN voltage +0.5V)
SAM3N
This large decoupling capacitor is mandatory to reduce startup current, improving transient response and noise rejection.
pin of the device. The ESR (Equivalent Series Resistance) of the capacitor must be in the range 0.1 to 10 ohms.
Solid tantalum, and multilayer ceramic capacitors are all suitable as output capacitor.
A 100nF bypass capacitor between VDDOUT and the closest GND pin of the device helps decreasing output noise and
improves the load transient response.
Parameter
DC Input Voltage Range
DC Output Voltage
Output Voltage Accuracy
Maximum DC Output
Current
Dropout Voltage
Line Regulation
Transient Line regulation
Load Regulation
Transient Load Regulation
Quiescent Current
Input Decoupling Capacitor
Output Decoupling
Capacitor
Turn on Time
Turn off Time
1.8V Voltage Regulator Characteristics
Conditions
(3) (4)
Normal Mode
Standby Mode
I
V
V
V
V
V
Max
CD
V
I
V
I
tr = tf = 5 µs
CD
Normal Mode;
@ I
@ I
Standby Mode;
Cf. External Capacitor Requirements
Cf. External Capacitor Requirements
ESR
CD
power brownout detector supply rising
threshold)
CD
Load
Load
Load
VDDIN
VDDIN
VDDIN
VDDIN
VDDIN
VDDIN
VDDIN
OUT
OUT
OUT
OUT
Load
Load
= 10% to 90% MAX
= 10% to 90% MAX
= 0.5 mA to 60 mA
> 2V
≤ 2V
= 1.8V, I
≥ 2.2V;
≥ 2.2V;
from 2.7V to 3.6V; I
from 2.7V to 3.6V; tr = tf = 5µs; I
= 1µF
= 1 µF
= 1µF, V
= 1µF
= 0 mA
= 60 mA
Load
VDDOUT
= 60 mA
OUT
reaches V
Load
must be connected between the VDDOUT and the closest GND
MAX
TH+
(core
(1)
(2)
Load
0.75
Min
1.8
0.1
-3
Typ
700
100
3.3
1.8
20
50
20
50
10
0
7
1
11011A–ATARM–04-Oct-10
1200
Max
100
100
100
200
3.6
60
40
50
50
10
10
40
3
1
Units
Ohm
mA
mV
mV
mV
ms
µA
µF
µF
µs
%
V
V