參數(shù)資料
型號: MC68HC705L1B
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP56
封裝: SDIP-56
文件頁數(shù): 32/102頁
文件大?。?/td> 632K
代理商: MC68HC705L1B
MC68HC05L1
MOTOROLA
4-7
RESETS AND INTERRUPTS
4
Figure 4-4 External Interrupt Circuit and Timing
+
&
+
EXTERNAL
REQUEST
INTERRUPT
POWER-ON RESET
EXTERNAL RESET
EXTERNAL INTERRUPT
BEING SERVICED
D
C
R
Q
VDD
IRQ
LEVEL SENSITIVE TRIGGER
IRQ
I BIT (CC)
IRQ
tILIH
tILIL
EDGE SENSITIVE TRIGGER
CONDITION
The minimum pulse width tILIH is either
125ns (VDD=5V) or 250ns (VDD=3V).
The period tILIL should not be less than
the number of tcyc cycles it takes to
execute the interrupt service routine
plus 21 tcyc cycles.
INTERRUPT PIN
tILIL
Wired ORed
Interrupt signals
IRQ
if after servicing an interrupt the
external interrupt pins remain low, then
the next interrupt is recognized.
Normally
used
with
wired
OR
connection.
(b) Interrupt Mode Diagram
(a) Interrupt Function Diagram
LEVEL SENSITIVE TRIGGER
CONDITION
TPG
33
相關PDF資料
PDF描述
MC68HC05L1FU 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP64
MC68HC05L1B 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56
MC68HC705L2B 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP42
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MC68HC05L2CB 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP42
相關代理商/技術參數(shù)
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