datasheetbank_Logo
Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

80C32E View Datasheet(PDF) - Philips Electronics

Part Name
Description
View to exact match
80C32E
Philips
Philips Electronics Philips
80C32E Datasheet PDF : 62 Pages
First Prev 11 12 13 14 15 16 17 18 19 20 Next Last
Philips Semiconductors
CMOS single-chip 8-bit microcontrollers
Product specification
80C32/87C52
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: tAVLL = Time for address valid to ALE low.
tLLPL= Time for ALE low to PSEN low.
ALE
PSEN
PORT 0
PORT 2
tLHLL
tAVLL
tLLPL
tPLPH
tLLIV
tPLIV
tLLAX
tPLAZ
tPXIX
A0–A7
INSTR IN
tPXIZ
tAVIV
A0–A15
A0–A7
A8–A15
ALE
PSEN
RD
PORT 0
PORT 2
Figure 5. External Program Memory Read Cycle
tWHLH
tLLDV
tLLWL
tRLRH
tAVLL
tLLAX
A0–A7
FROM RI OR DPL
tRLAZ
tRLDV
tRHDX
DATA IN
tAVWL
tAVDV
P2.0–P2.7 OR A8–A15 FROM DPF
tRHDZ
A0–A7 FROM PCL
A0–A15 FROM PCH
Figure 6. External Data Memory Read Cycle
SU00006
INSTR IN
SU00025
1996 Aug 16
17
 

Share Link: 

datasheetbank.com [ Privacy Policy ] [ Request Datasheet ] [ Contact Us ]