参数资料
型号: MC68HC05P9AMDW
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封装: SOIC-28
文件页数: 150/158页
文件大小: 3885K
代理商: MC68HC05P9AMDW
Timer
Timing
Timer
Timing
1. V
DD = 5.0 Vdc ± 10%, TA = TL to TH unless otherwise noted.
2. A 2-bit prescaler in the timer is the limiting factor as it counts 4 t
CYC.
3. The minimum t
TLTL should not be less than the number of interrupt service routine cycles
plus 19 t
CYC.
1. V
DD = 3.3 Vdc ± 10%, TA = TL to TH unless otherwise noted.
2. A 2-bit prescaler in the timer is the limiting factor as it counts 4 t
CYC.
3. The minimum t
TLTL should not be less than the number of interrupt service routine cycles
plus 19 t
CYC.
Figure 46. Input Capture Characteristics
Table 19. Timer Characteristics (V
DD = 5.0 Vdc)
(1)
Characteristic
Symbol
Min
Max
Unit
Timer Resolution(2)
t
RESL
4.0
t
CYC
Input Capture Pulse Width
t
H, tL
125
ns
Input Capture Pulse Period
t
TLTL
Note
(3)
—t
CYC
Table 20. Timer Characteristics (V
DD = 3.3 Vdc)
(1)
Characteristic
Symbol
Min
Max
Unit
Timer Resolution(2)
t
RESL
4.0
t
CYC
Input Capture Pulse Width
t
H, tL
250
ns
Input Capture Pulse Period
t
TLTL
Note
(3)
—t
CYC
tTLTL
t
TH
t
TL
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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