参数资料
型号: MC68HC711D3MFN3
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PQCC44
封装: PLASTIC, LCC-44
文件页数: 27/157页
文件大小: 2252K
代理商: MC68HC711D3MFN3
Electrical Characteristics
Data Sheet
MC68HC711D3 — Rev. 2
122
Electrical Characteristics
MOTOROLA
9.6 Control Timing
Figure 9-3. Timer Inputs
Characteristic(1)
Symbol
1.0 MHz
2.0 MHz
3.0 MHz
Unit
Min
Max
Min
Max
Min
Max
Frequency of operation
fO
dc
1.0
dc
2.0
dc
3.0
MHz
E-clock period
tcyc
1000
500
333
ns
Crystal frequency
fXTAL
—4.0
8.0
12.0
MHz
External oscillator frequency
4 fO
dc
4.0
dc
8.0
dc
12.0
MHz
Processor control setup timetPCSU = 1/4 tcyc + 50 ns
tPCSU
300
175
133
ns
Reset input pulse width(2)
To guarantee external reset vector
Minimum input time can be preempted by internal reset
PWRSTL
8
1
8
1
8
1
tcyc
Mode programming setup time
tMPS
2—
2
2
tcyc
Mode programming hold time
tMPH
10
10
10
ns
Interrupt pulse width, PWIRQ = tcyc + 20 ns
IRQ edge-sensitive mode
PWIRQ
1020
520
353
ns
Wait recovery startup time
tWRS
4
—4—4
tcyc
Timer pulse width PWTIM = tcyc + 20 ns
Input capture pulse
Accumulator input
PWTIM
1020
520
353
ns
1. VDD = 5.0 Vdc ± 10%, VSS = 0 Vdc, TA = TL to TH. All timing is shown with respect to 20% VDD and 70% VDD, unless
otherwise noted.
2. Reset is recognized during the first clock cycle it is held low. Internal circuitry then drives the pin low for four clock cycles,
releases the pin, and samples the pin level two cycles later to determine the source of the interrupt. Refer to Section 5.
Input/Output (I/O) Ports for further details.
Notes:
1. Rising edge sensitive input
2. Falling edge sensitive input
3. Maximum pulse accumulator clocking rate is E-clock frequency divided by 2.
PA7(2) (3)
PA7(1) (3)
PA0–PA3(2)
PA0–PA3(1)
PWTIM
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