p87c51mc2 NXP Semiconductors, p87c51mc2 Datasheet - Page 24

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p87c51mc2

Manufacturer Part Number
p87c51mc2
Description
80c51 8-bit Microcontroller Family With Extended Memory
Manufacturer
NXP Semiconductors
Datasheet

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2001 Apr 06
Philips Semiconductors
80C51 8-bit microcontroller family with extended memory
64KB/96KB OTP with 2KB/3KB RAM
PORT 0
PORT 2
PSEN
ALE
RD
PORT 0
PORT 2
PSEN
ALE
t
t
AVWL
Figure 3: External Data Memory Read Cycle (Non-Extended Memory Cycle)
AVLL
Figure 2: External Program Memory Read Cycle (Extended Memory Cycle)
t
LHLL
t
AVLL
t
LLAX
t
LLAX
A16-A22,P2.7
A0-A7
t
LLPL
A0-A7
t
LLWL
t
RLAZ
t
AVDV
t
PLAZ
t
LLDV
t
LLIV
P2.0-P2.7 OR A8-A15
t
PLIV
t
AVIV1
t
RLDV
t
PLPH
A8-A15
t
24
RLRH
DATA in
t
RHDX
INSTR IN
t
PXIX
t
WHLH
P87C51MB2/P87C51MC2
t
A0-A7 FROM PCL
RHDZ
t
PXIZ
A0-A7
Preliminary specification
INSTR IN

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