AT90PWM3-16SQ Atmel, AT90PWM3-16SQ Datasheet - Page 166
![IC AVR MCU FLASH 8K 32SOIC](/photos/7/29/72992/313-32-soic_sml.jpg)
AT90PWM3-16SQ
Manufacturer Part Number
AT90PWM3-16SQ
Description
IC AVR MCU FLASH 8K 32SOIC
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM3B-16SU.pdf
(361 pages)
Specifications of AT90PWM3-16SQ
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
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 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)
Processor Series
AT90PWMx
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SPI, USART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
27
Number Of Timers
2
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRFBKIT, ATAVRISP2
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 11 Channel
On-chip Dac
10 bit, 1 Channel
For Use With
ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOICATAVRMC200 - KIT EVAL FOR AT90PWM3 ASYNCATAVRFBKIT - KIT DEMO BALLAST FOR AT90PWM2ATSTK520 - ADAPTER KIT FOR 90PWM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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16.25.13 PSC 2 Control Register – PCTL2
166
AT90PWM2/3/2B/3B
• Bit 7:6 – PPRE11:0 : PSC 1 Prescaler Select
This two bits select the PSC input clock division factor.All generated waveform will be modified
by this factor.
Table 16-15. PSC 1 Prescaler Selection
• Bit 5 – PBFM1 : Balance Flank Width Modulation
When this bit is clear, Flank Width Modulation operates on On-Time 1 only.
When this bit is set, Flank Width Modulation operates on On-Time 0 and On-Time 1.
• Bit 4 – PAOC1B : PSC 1 Asynchronous Output Control B
When this bit is set, Fault input selected to block B can act directly to PSCOUT11 output. See
Section “PSC Clock Sources”, page 159
• Bit 3 – PAOC1A : PSC 1 Asynchronous Output Control A
When this bit is set, Fault input selected to block A can act directly to PSCOUT10 output. See
Section “PSC Clock Sources”, page 159
• Bit 2 – PARUN1 : PSC 1 Autorun
When this bit is set, the PSC 1 starts with PSC0. That means that PSC 1 starts :
•
•
Thanks to this bit, 2 or 3 PSCs can be synchronized (motor control for example)
• Bit 1 – PCCYC1 : PSC 1 Complete Cycle
When this bit is set, the PSC 1 completes the entire waveform cycle before halt operation
requested by clearing PRUN1. This bit is not relevant in slave mode (PARUN1 = 1).
• Bit 0 – PRUN1 : PSC 1 Run
Writing this bit to one starts the PSC 1.
When set, this bit prevails over PARUN1 bit.
Bit
Read/Write
Initial Value
PPRE11
0
0
1
1
when PRUN0 bit in PCTL0 register is set,
or when PARUN0 bit in PCTL0 is set and PRUN2 bit in PCTL2 register is set.
PPRE10
0
1
0
1
PPRE21
R/W
7
0
PPRE20
R/W
6
0
Description PWM2/3
No divider on PSC input clock
Divide the PSC input clock by 4
Divide the PSC input clock by 16
Divide the PSC clock by 64
PBFM2
R/W
5
0
PAOC2B
R/W
4
0
PAOC2A
R/W
3
0
PARUN2
R/W
2
0
Description PWM2B/3B
No divider on PSC input clock
Divide the PSC input clock by 4
Divide the PSC input clock by 32
Divide the PSC clock by 256
PCCYC2
R/W
1
0
PRUN2
R/W
0
0
4317J–AVR–08/10
PCTL2
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