參數(shù)資料
型號: MC68HSC05C8A
廠商: Motorola, Inc.
英文描述: 8-Bit Microcontroller Units (MCU).(8位微控制器)
中文描述: 8位微控制器單元(MCU)。(8位微控制器)
文件頁數(shù): 122/156頁
文件大?。?/td> 755K
代理商: MC68HSC05C8A
L
G
R
Electrical Specifications
General Release Specification
MC68HC05C8A
Rev. 3.0
122
Electrical Specifications
MOTOROLA
13.9 5.0 V Control Timing
Characteristic
(1)
Symbol
Min
Max
Unit
Oscillator Frequency
Crystal
External Clock
f
osc
dc
4.2
4.2
MHz
Internal Operating Frequency
Crystal
External Clock
f
op
dc
2.1
2.1
MHz
Internal Clock Cycle Time
t
cyc
480
ns
Crystal Oscillator Startup Time
t
OXOV
100
ms
Stop Recovery Startup Time (Crystal Oscillator)
t
ILCH
100
ms
RESET Pulse Width
t
RL
1.5
t
cyc
Timer
Resolution
(2)
Input Capture Pulse Width
Input Capture Pulse Period
t
RESL
t
TH
, t
TL
t
TLTL
4.0
125
Note
(3)
t
cyc
ns
t
cyc
Interrupt Pulse Width Low (Edge-Triggered)
t
ILIH
125
ns
Interrupt Pulse Period
t
ILIL
Note
(4)
t
cyc
OSC1 Pulse Width
t
OH
, t
OL
90
ns
NOTES:
1.
2.
V
DD
= 5.0 Vdc
±
10%, V
SS
= 0 Vdc, T
A
= –40
°
C to +85
°
C, unless otherwise noted.
Because a 2-bit prescaler in the timer must count four internal cycles (t
CYC
), this is the limiting minimum factor in
determining the timer resolution.
The minimum period t
TLTL
should not be less than the number of cycle times it takes to execute the capture interrupt
service routine plus 24 t
.
The minimum t
ILIL
should not be less than the number of cycle times it takes to execute the interrupt service routine
plus 19 t
cyc
.
3.
4.
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