参数资料
型号: MC68HC08AS20VFNR2
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PQCC52
封装: PLASTIC, LCC-52
文件页数: 79/96页
文件大小: 3243K
代理商: MC68HC08AS20VFNR2
9
MOTOROLA
9-4
MC68HC05E0
ELECTRICAL SPECIFICATIONS
9.5
AC Electrical Characteristics
(VDD = 5.0V dc ± 10%, VSS = 0 Vdc, TA= 0 to 70οC)
Table 9-4 AC Electrical Characteristics (5V)
Characteristic
Symbol
Min
Max
Unit
Frequency of Operation
Crystal
External Clock
fosc
dc
8.0
MHz
Internal Operating Frequency
Crystal (f osc ÷ 2)
External Clock (f osc ÷ 2)
P02
dc
4.0
MHz
Cycle Time
tcyc
250
ns
Crystal Oscillator Startup Time
tOXOV
100
ms
STOP Recovery Startup Time (Crystal Oscillator)
tILCH
100
ms
RESET Pulse Width
tRL
1.5
tcyc
Interrupt Pulse Width Low (Edge-Triggered)
tILIH
125
ns
Interrupt Pulse Period
tILIL
*
tcyc
OSC1 Pulse Width
tOH, tOL
55
ns
*
The minimum period t ILIL should not lbe less than the number of cycle times it takes to
execute the interrupt service routine plus 21 t cyc.
80
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