AT90PWM216-16SUR Atmel, AT90PWM216-16SUR Datasheet - Page 34
AT90PWM216-16SUR
Manufacturer Part Number
AT90PWM216-16SUR
Description
MCU AVR 16K FLASH 16MHZ 24SOIC
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM216-16SU.pdf
(359 pages)
Specifications of AT90PWM216-16SUR
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
19
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 8x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
24-SOIC (7.5mm Width)
Processor Series
AT90PWMx
Core
AVR8
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRFBKIT, ATAVRISP2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 34 of 359
- Download datasheet (6Mb)
7.6
7.6.1
34
PLL
AT90PWM216/316
Internal PLL for PSC
To generate high frequency and accurate PWM waveforms, the ‘PSC’s need high frequency
clock input. This clock is generated by a PLL. To keep all PWM accuracy, the frequency factor of
PLL must be configurable by software. With a system clock of 8 MHz, the PLL output is 32Mhz
or 64Mhz.
The internal PLL in AT90PWM216/316 generates a clock frequency that is 64x multiplied from
nominally 1 MHz input. The source of the 1 MHz PLL input clock is the output of the internal RC
Oscillator which is divided down to 1 MHz. See the
The PLL is locked on the RC Oscillator and adjusting the RC Oscillator via OSCCAL Register
will adjust the fast peripheral clock at the same time. However, even if the possibly divided RC
Oscillator is taken to a higher frequency than 1 MHz, the fast peripheral clock frequency satu-
rates at 70 MHz (worst case) and remains oscillating at the maximum frequency. It should be
noted that the PLL in this case is not locked any more with the RC Oscillator clock.
Therefore it is recommended not to take the OSCCAL adjustments to a higher frequency than 1
MHz in order to keep the PLL in the correct operating range. The internal PLL is enabled only
when the PLLE bit in the register PLLCSR is set. The bit PLOCK from the register PLLCSR is
set when PLL is locked.
Both internal 1 MHz RC Oscillator and PLL are switched off in Power-down and Standby sleep
modes
.
Table 7-7.
1.
2.
3.
RC Osc
Ext Osc
CKSEL
Ext Clk
0011
0101
0001
3..0
This value do not provide a proper restart ; do not use PD in this clock scheme
This value do not provide a proper restart ; do not use PD in this clock scheme
This value do not provide a proper restart ; do not use PD in this clock scheme
SUT1..0
Start-up Times when the PLL is selected as system clock
00
01
10
11
00
01
10
11
00
01
10
11
Start-up Time from Power-down
and Power-save
16K CK
16K CK
16K CK
6 CK
6 CK
6 CK
1K CK
1K CK
1K CK
1K CK
1K CK
(1)
(2)
(3)
Figure 7-4 on page
Reserved
Additional Delay from Reset
36.
14CK + 64 ms
14CK + 64 ms
14CK + 64 ms
14CK + 4 ms
14CK + 4 ms
14CK + 4 ms
14CK + 4 ms
(V
CC
14CK
14CK
14CK
14CK
= 5.0V)
7710E–AVR–08/10
Related parts for AT90PWM216-16SUR
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
8-bit Microcontroller with 16K Bytes In-System Programmable flash
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
Part Number:
Description:
MCU AVR 16K ISP FLSH 16MHZ24SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
DEV KIT FOR AVR/AVR32
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet: