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參數(shù)資料
| 型號(hào)： | OM5232 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | CMOS single-chip 8-bit microcontroller |
| 中文描述： | CMOS單芯片8位微控制器 |
| 文件頁(yè)數(shù)： | 9/11頁(yè) |
| 文件大小： | 175K |
| 代理商： | OM5232 |
Philips Semiconductors
Product specification
OM5232
CMOS single-chip 8-bit microcontroller
December 1994
9
EXPLANATION OF THE AC SYMBOLS
Each timing symbol has five characters. The first character is always
‘t’ (= time). The other characters, depending on their positions,
indicate the name of a signal or the logical status of that signal. The
designations are:
A – Address
C – Clock
D – Input data
H – Logic level high
I
– Instruction (program memory contents)
L – Logic level low, or ALE
P – PSEN
Q – Output data
R – RD signal
t
– Time
V – Valid
W – WR signal
X – No longer a valid logic level
Z – Float
Examples:
t
AVLL
= Time for address valid
to ALE low.
t
LLPL
= Time for ALE low
to PSEN low.
t
PXIZ
Figure 2. External Program Memory Read Cycle
ALE
PSEN
PORT 0
PORT 2
A8–A15
A8–A15
A0–A7
A0–A7
t
AVLL
t
PXIX
t
LLAX
INSTR IN
t
PLIV
t
LHLL
t
PLPH
t
LLIV
t
PLAZ
t
LLPL
t
AVIV
ALE
PSEN
PORT 0
PORT 2
Figure 3. External Data Memory Read Cycle
RD
A0–A7
FROM RI OR DPL
DATA IN
A0–A7 FROM PCL
INSTR IN
P2.0–P2.7 OR A8–A15 FROM DPH
A8–A15 FROM PCH
t
WHLH
t
LLDV
t
LLWL
t
RLRH
t
LLAX
t
RLAZ
t
AVLL
t
RHDX
t
RHDZ
t
AVWL
t
AVDV
t
RLDV
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相關(guān)代理商/技術(shù)參數(shù) |
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| OM5232/FBB | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:CMOS single-chip 8-bit microcontroller |
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| OM5233RTT | 制造商:International Rectifier 功能描述:RECTIFIER - Bulk |
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