AT90PWM316-16SUR Atmel, AT90PWM316-16SUR Datasheet - Page 143
![MCU AVR 16K FLASH 16MHZ 32-SOIC](/photos/7/29/72992/313-32-soic_sml.jpg)
AT90PWM316-16SUR
Manufacturer Part Number
AT90PWM316-16SUR
Description
MCU AVR 16K FLASH 16MHZ 32-SOIC
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM216-16SU.pdf
(359 pages)
Specifications of AT90PWM316-16SUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
27
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 11x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
32-SOIC (7.5mm Width)
For Use With
ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOICATAVRMC200 - KIT EVAL FOR AT90PWM3 ASYNCATAVRFBKIT - KIT DEMO BALLAST FOR AT90PWM2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Manufacturer
Quantity
Price
- Current page: 143 of 359
- Download datasheet (6Mb)
16.7.1
7710E–AVR–08/10
Frequency distribution
The frequency modulation is done by switching two frequencies in a 16 consecutive cycle frame.
These two frequencies are f
frequency and f
in the frame is (d-16) and the number of f
uted in the frame according to a predefined pattern. This pattern can be as given in the following
table or by any other implementation which give an equivallent evenly distribution.
Table 16-5.
While ‘X’ in the table, f
So for each row, a number of fb2 take place of fb1.
Figure 16-12. Resulting Frequency versus d.
Distribution of fb2 in the modulated frame
Fraction
al
Divider
(d)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
d:
f
b1
0
PWM - cycle
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
Distribution of f
b2
2
1
X
X
X
X
X
X
X
is the nearest base frequency below the wanted frequency. The number of f
3
2
X
X
X
X
X
X
X
X
X
X
X
b2
4
prime to f
3
X
X
X
b1
b2
5
and f
in the modulated frame
4
X
X
X
X
X
X
X
X
X
X
X
X
X
6
b1
b2
in cycle corresponding cycle.
7
where f
5
X
X
X
X
X
8
b2
6
X
X
X
X
X
X
X
X
X
is d. The f
b1
9 10 11 12 13 14 15
is the nearest base frequency above the wanted
7
X
8
X
X
X
X
X
X
X
X
X
X
X
X
X
X
b1
and f
9
X
X
X
X
X
X
AT90PWM216/316
b2
frequencies are evenly distrib-
10
X
X
X
X
X
X
X
X
X
X
11
X
X
f
12
X
X
X
X
X
X
X
X
X
X
X
X
b2
13
X
X
X
X
f
OP
14
X
X
X
X
X
X
X
X
15
143
b1
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