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参数资料
| 型号： | TSC80C31-16KAD |
| 厂商： | ATMEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 16 MHz, MICROCONTROLLER, PDIP40 |
| 封装： | PLASTIC, DIP-40 |
| 文件页数： | 33/83页 |
| 文件大小： | 8336K |
| 代理商： | TSC80C31-16KAD |
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30
8021G–AVR–03/11
ATmega329P/3290P
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.
8.5
Low-frequency Crystal Oscillator
The Low-frequency Crystal Oscillator is optimized for use with a 32.768kHz watch crystal. When
selecting crystals, load capacitance and crystal’s Equivalent Series Resistance, ESR must be
taken into consideration. Both values are specified by the crystal vendor.
ATmega329P/3290P oscillator is optimized for very low power consumption, and thus when
selecting crystals, see Table 8-5 for maximum ESR recommendations on 6.5pF, 9.0pF and
12.5pF crystals.
Table 8-5.
Maximum ESR Recommendation for 32.768kHz Watch Crystal
ATmega329P/3290P
Note:
1. Maximum ESR is typical value based on characterization
The Low-frequency Crystal Oscillator provides an internal load capacitance, seeTable 8-6 on
page 30 at each TOSC pin.
Table 8-6.
Capacitance for Low-frequency Oscillator
011
1K CK(2)
14CK + 4.1ms
Ceramic resonator, fast
rising power
100
1K CK(2)
14CK + 65ms
Ceramic resonator,
slowly rising power
1
01
16K CK
14CK
Crystal Oscillator, BOD
enabled
1
10
16K CK
14CK + 4.1ms
Crystal Oscillator, fast
rising power
1
11
16K CK
14CK + 65ms
Crystal Oscillator,
slowly rising power
Table 8-4.
Start-up Times for the Crystal Oscillator Clock Selection (Continued)
CKSEL0
SUT1..0
Start-up Time from
Power-down and
Power-save
Additional Delay
from Reset
(V
CC = 5.0V)
Recommended Usage
Crystal CL (pF)
Max ESR [k
Ω](1)
6.5
75
9.0
65
12.5
30
Device
32kHz Osc. Type
Cap(Xtal1/Tosc1)
Cap(Xtal2/Tosc2)
ATmega329P/3290P
System Osc.
16pF
6pF
Timer Osc.
16pF
6pF
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TSC80C31-16MA | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 44 MHz Single-Chip 8 Bit Microcontroller |
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| TSC80C31-16MAD/883 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 44 MHz Single-Chip 8 Bit Microcontroller |
| TSC80C31-16MAR/883 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 44 MHz Single-Chip 8 Bit Microcontroller |
| TSC80C31-16MAR/P883 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 44 MHz Single-Chip 8 Bit Microcontroller |
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