參數(shù)資料
型號(hào): P80C552
廠商: NXP Semiconductors N.V.
英文描述: Single-chip 8-bit microcontroller
中文描述: 單芯片8位微控制器
文件頁(yè)數(shù): 16/23頁(yè)
文件大?。?/td> 185K
代理商: P80C552
Philips Semiconductors
Product data
80C552/83C552
Single-chip 8-bit microcontroller with 10-bit A/D,
capture/compare timer, high-speed outputs, PWM
2002 Sep 03
16
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.
SU01694
t
PXIZ
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
Figure 2. External Program Memory Read Cycle
SU01695
ALE
PSEN
PORT 0
PORT 2
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
Figure 3. External Data Memory Read Cycle
相關(guān)PDF資料
PDF描述
P80C552IBB Single-chip 8-bit microcontroller
P80C552KBB Single-chip 8-bit microcontroller
P83C552EHA Single-chip 8-bit microcontroller
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