參數(shù)資料
型號: AT90PWM1-16SU
廠商: Atmel
文件頁數(shù): 24/90頁
文件大?。?/td> 0K
描述: MCU AVR 8K FLASH 16MHZ 24-SOIC
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
megaAVR Introduction
標(biāo)準(zhǔn)包裝: 1,116
系列: AVR® 90PWM 照明
核心處理器: AVR
芯體尺寸: 8-位
速度: 16MHz
連通性: SPI
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 19
程序存儲器容量: 8KB(8K x 8)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 512 x 8
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 105°C
封裝/外殼: 24-SOIC(0.295",7.50mm 寬)
包裝: 管件
配用: ATSTK600-RC19-ND - STK600 ROUTING CARD AVR
ATSTK600-SOIC-ND - STK600 SOCKET/ADAPTER FOR SOIC
30
4378C–AVR–09/08
AT90PWM1
Notes:
1. The frequency ranges are preliminary values. Actual values are TBD.
2. This option should not be used with crystals, only with ceramic resonators.
The CKSEL0 Fuse together with the SUT1..0 Fuses select the start-up times as shown in Table
Notes:
1. These options should only be used when not operating close to the maximum frequency of the
device, and only if frequency stability at start-up is not important for the application. These
options are not suitable for crystals.
2. These options are intended for use with ceramic resonators and will ensure frequency stability
at start-up. They can also be used with crystals when not operating close to the maximum fre-
quency of the device, and if frequency stability at start-up is not important for the application.
7.5
Calibrated Internal RC Oscillator
By default, the Internal RC OScillator provides an approximate 8.0 MHz clock. Though voltage
and temperature dependent, this clock can be very accurately calibrated by the user. The device
is shipped with the CKDIV8 Fuse programmed. See “System Clock Prescaler” on page 35 for
more details.
This clock may be selected as the system clock by programming the CKSEL Fuses as shown in
Table 7-5. If selected, it will operate with no external components. During reset, hardware loads
the pre-programmed calibration value into the OSCCAL Register and thereby automatically cal-
101
0.9 - 3.0
12 - 22
110
3.0 - 8.0
12 - 22
111
8.0 -16.0
12 - 22
Table 7-4.
Start-up Times for the Oscillator Clock Selection
CKSEL0
SUT1..0
Start-up Time from
Power-down and
Power-save
Additional Delay
from Reset
(VCC = 5.0V)
Recommended Usage
0
00
258 CK
14CK + 4.1 ms
Ceramic resonator, fast
rising power
0
01
258 CK
14CK + 65 ms
Ceramic resonator, slowly
rising power
010
1K CK
14CK
Ceramic resonator, BOD
enabled
011
1K CK
14CK + 4.1 ms
Ceramic resonator, fast
rising power
100
1K CK
14CK + 65 ms
Ceramic resonator, slowly
rising power
1
01
16K CK
14CK
Crystal Oscillator, BOD
enabled
1
10
16K CK
14CK + 4.1 ms
Crystal Oscillator, fast
rising power
1
11
16K CK
14CK + 65 ms
Crystal Oscillator, slowly
rising power
Table 7-3.
Crystal Oscillator Operating Modes
CKSEL3..1
Frequency Range
(1) (MHz)
Recommended Range for Capacitors C1 and
C2 for Use with Crystals (pF)
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