参数资料
型号: MC68HC705P9CS
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, CDIP28
封装: CERDIP-28
文件页数: 129/160页
文件大小: 2208K
代理商: MC68HC705P9CS
Resets and Interrupts
Technical Data
MC68HC705P9 — Rev. 4.0
70
Resets and Interrupts
MOTOROLA
IRQ/VPP pin. An external interrupt request, shown in Figure 5-5, is
latched as long as any source is holding the IRQ/VPP pin low.
Figure 5-5. External Interrupt Timing
Table 5-2. External Interrupt Timing (VDD = 5.0 Vdc)
(1)
1. VDD = 5.0 Vdc ±10%, VSS = 0 Vdc, TA = TL to TH
Characteristic
Symbol
Min
Max
Unit
Interrupt Pulse Width Low (Edge-Triggered)
tILIH
125
ns
Interrupt Pulse Period
tILIL
Note(2)
2. The minimum tILIL should not be less than the number of interrupt service routine cycles plus
19 tCYC.
tCYC
Table 5-3. External Interrupt Timing (VDD = 3.3 Vdc)
(1)
1. VDD = 3.3 Vdc ±10%, VSS = 0 Vdc, TA = TL to TH
Characteristic
Symbol
Min
Max
Unit
Interrupt Pulse Width Low (Edge-Triggered)
tILIH
250
ns
Interrupt Pulse Period
tILIL
Note(2)
2. The minimum tILIL should not be less than the number of interrupt service routine cycles plus
19 tCYC.
tCYC
IRQ (INTERNAL)
tILIH
tILIL
tILIH
IRQ/V
PP PIN
IRQ1
IRQn
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For More Information On This Product,
Go to: www.freescale.com
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