ATMEGA163L-4AC Atmel, ATMEGA163L-4AC Datasheet - Page 55
ATMEGA163L-4AC
Manufacturer Part Number
ATMEGA163L-4AC
Description
IC AVR MCU 16K A/D 2.7V 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA163-8AC.pdf
(187 pages)
Specifications of ATMEGA163L-4AC
Core Processor
AVR
Core Size
8-Bit
Speed
4MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
16KB (8K x 16)
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 8x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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1142E–AVR–02/03
Table 21. Compare Mode Select in PWM Mode
Note that in PWM mode, the value to be written to the Output Compare Register is first
tr an sfe rr ed to a temp o ra ry lo ca tio n , an d the n latc he d in to O CR 2 w h en th e
Timer/Counter reaches $FF. This prevents the occurrence of odd-length PWM pulses
(glitches) in the event of an unsynchronized OCR2 write. See Figure 38 for examples.
Figure 38. Effects of Unsynchronized OCR Latching
CTC2
0
0
0
0
1
1
1
1
COM21
0
0
1
1
0
0
1
1
COM20
0
1
0
1
0
1
0
1
Synchronized OC2 Latch
Unsynchronized OC2 Latch
Effect on Compare Pin
Not connected
Not connected
Cleared on Compare Match, up-counting. Set on
Compare Match, down-counting (non-inverted
PWM).
Cleared on Compare Match, down-counting. Set
on Compare Match, up-counting (inverted PWM).
Not connected
Not connected
Cleared on compare match, set on overflow.
Set on compare match, cleared on overflow.
ATmega163(L)
PWM Output OC2
PWM Output OC2
Frequency
f
f
f
f
TCK0/2
TCK0/2
TCK0/2
TCK0/2
/510
/510
/256
/256
55
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