P8XC557E4 NXP Semiconductors, P8XC557E4 Datasheet - Page 68
![The P80C557E4/P83C557E4/P89C557E4 (hereafter generically referred to as P8xC557E4) single-chip 8-bit microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family](/photos/41/53/415310/sot318-2_3d_sml.gif)
P8XC557E4
Manufacturer Part Number
P8XC557E4
Description
The P80C557E4/P83C557E4/P89C557E4 (hereafter generically referred to as P8xC557E4) single-chip 8-bit microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family
Manufacturer
NXP Semiconductors
Datasheet
1.P8XC557E4.pdf
(72 pages)
- Current page: 68 of 72
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Philips Semiconductors
1999 Mar 02
PORT 0
PORT 2
PORT 0
PORT 2
Single-chip 8-bit microcontroller
PSEN
PSEN
ALE
ALE
WR
RD
t
t
AVLL
AVLL
FROM RI OR DPL
FROM RI OR DPL
A0–A7
A0–A7
t
t
LLAX
t
LLAX
t
AVWL
AVWL
t
t
LLWL
LLWL
t
P2.0–P2.7 OR A8–A15 FROM DPH
P2.0–P2.7 OR A8–A15 FROM DPH
AVDV
Figure 61. External Data Memory Read Cycle
Figure 62. External Data Memory Write Cycle
t
LLDV
t
QVWX
t
t
RLDV
RLAZ
t
QVWH
DATA OUT
t
WLWH
t
RLRH
68
t
RHDX
DATA IN
P83C557E4/P80C557E4/P89C557E4
t
RHDZ
t
t
WHLH
WHLH
t
WHQX
A0–A7 FROM PCL
A0–A7 FROM PCL
A8–A15 FROM PCH
A8–A15 FROM PCH
Product specification
INSTR IN
INSTR IN
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