參數(shù)資料
型號: MC68HC05C12ACFN
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 56/156頁
文件大小: 756K
代理商: MC68HC05C12ACFN
MC68HSC05C12A
MC68HC05C12A Rev. 3.0
General Release Specification
MOTOROLA
MC68HSC05C12A
149
NON-DISCLOSURE
AGREEMENT
REQUIRED
B.6 2.4–3.6 V Control Timing
The data in 13.10 3.3 V Control Timing applies to the
MC68HSC05C12A with the exceptions given in the following table.
Characteristic
Symbol
Min
Max
Unit
Oscillator Frequency
Crystal
External Clock
f
OSC
dc
4.2
MHz
Internal Operating Frequency (f
OSC ÷ 2)
Crystal
External Clock
f
OP
dc
2.1
MHz
Cycle Time
tcyc
480
ns
Crystal Oscillator Startup Time
tOXOV
100
ms
Stop Recovery Startup Time
tILCH
100
ms
RESET Pulse Width
tRL
1.5
tcyc
Timer
Resolution(1)
Input Capture Pulse Width
tRESL
tTH or tTL
tTHTL
4.0
125
(2)
tcyc
ns
tcyc
Interrupt Pulse Width Low (Edge-Triggered)
tILIH
125
ns
Interrupt Pulse Period
tILIL
(3)
—tcyc
OSC1 Pulse Width
tOH or tOL
90
ns
1.
Because a 2-bit prescaler in the timer must count four internal cycles (
tcyc), this is the limiting minimum factor in
determining the timer resolution.
2.
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.
3.
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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