p87c51mc2 NXP Semiconductors, p87c51mc2 Datasheet - Page 25

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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
WR
t
Figure 5: External Data Memory Write Cycle (Non-Extended Memory Cycle)
AVLL
t
AVLL
Figure 4: External Data Memory Read Cycle (Extended Memory Cycle)
t
LLAX
A16-A22,P2.7
t
LLAX
A0-A7
A0-A7
t
t
AVWL
LLWL
t
LLWL
t
RLAZ
t
QVWX
t
LLDV
t
AVDV1
P2.0-P2.7 OR A8-A15
t
AVWL1
t
RLDV
A8-A15
DATA OUT
t
QVWH
t
25
RLRH
t
WLWH
DATA in
t
RHDX
t
WHLH
t
WHLH
P87C51MB2/P87C51MC2
t
t
A0-A7 FROM PCL
WHQX
RHDZ
A0-A7 FROM PCL
Preliminary specification
INSTR IN
INSTR IN

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