参数资料
型号: MC68HC05C12ACFB
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封装: QFP-44
文件页数: 27/156页
文件大小: 756K
代理商: MC68HC05C12ACFB
NON-DISCLOSURE
AGREEMENT
REQUIRED
Electrical Specications
General Release Specification
MC68HC05C12A 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
fosc
dc
4.2
MHz
Internal Operating Frequency
Crystal
External Clock
fop
dc
2.1
MHz
Internal Clock Cycle Time
tcyc
480
ns
Crystal Oscillator Startup Time
tOXOV
100
ms
Stop Recovery Startup Time (Crystal Oscillator)
tILCH
100
ms
RESET Pulse Width
tRL
1.5
tcyc
Timer
Resolution(2)
Input Capture Pulse Width
Input Capture Pulse Period
tRESL
tTH, tTL
tTLTL
4.0
125
Note(3)
tcyc
ns
tcyc
Interrupt Pulse Width Low (Edge-Triggered)
tILIH
125
ns
Interrupt Pulse Period
tILIL
Note(4)
—tcyc
OSC1 Pulse Width
tOH,tOL
90
ns
NOTES:
1.
VDD = 5.0 Vdc ± 10%, VSS = 0 Vdc, TA = –40 °C to +85 °C, unless otherwise noted.
2.
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.
3.
The minimum period tTLTL should not be less than the number of cycle times it takes to execute the capture interrupt
service routine plus 24 t
CYC.
4.
The minimum tILIL should not be less than the number of cycle times it takes to execute the interrupt service routine
plus 19 tcyc.
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