参数资料
型号: IV80C52EXXX-25:RD
厂商: ATMEL CORP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP44
封装: 1.40 MM HEIGHT, VQFP-44
文件页数: 104/134页
文件大小: 3805K
71
8068U–AVR–06/2013
XMEGA A3
Not recommended for new designs -
Use XMEGA A3U series
Note:
1. See Figure 34-2 on page 71 for definition
Figure 34-2.
TOSC input capacitance
The input capacitance between the TOSC pins is CL1 + CL2 in series as seen from the crystal
when oscillating without external capacitors.
Notes:
1. Non-prescaled System Clock source.
2. Time from pin change on external interrupt pin to first available clock cycle. Additional interrupt response time is minimum 5
system clock source cycles.
Table 34-18.
External 32.768kHz Crystal Oscillator and TOSC characteristics
Symbol
Parameter
Condition
Min
Typ
Max
Units
SF
Safety factor
Capacitive load matched to crystal
specification
3
ESR/R
1
Recommended crystal equivalent
series resistance (ESR)
Crystal load capacitance 6.5pF
60
k
Crystal load capacitance 9.0pF
35
C
IN_TOSC
Input capacitance between TOSC
pins
Normal mode
1.7
pF
Low power mode
2.2
CL1
CL2
TOSC1
TOSC2
Device internal
External
32.768 KHz crystal
Table 34-19.
Device wake-up time from sleep
Symbol
Parameter
Min
Typ(2)
Max
Units
Idle Sleep, Standby and Extended
Standby sleep mode
Int. 32.768 kHz RC
130
S
Int. 2 MHz RC
2
Ext. 2 MHz Clock
2
Int. 32 MHz RC
0.17
Power-save and Power-down
Sleep mode
Int. 32.768 kHz RC
320
Int. 2 MHz RC
10.3
Ext. 2 MHz Clock
4.5
Int. 32 MHz RC
5.8
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