P80C552IBA NXP Semiconductors, P80C552IBA Datasheet - Page 16
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P80C552IBA
Manufacturer Part Number
P80C552IBA
Description
MCU 8-Bit 80C 80C51 CISC ROMLess 5V 68-Pin PLCC Tube
Manufacturer
NXP Semiconductors
Datasheet
1.P80C552EBA08512.pdf
(23 pages)
Specifications of P80C552IBA
Package
68PLCC
Device Core
80C51
Family Name
80C
Maximum Speed
24 MHz
Ram Size
256 Byte
Operating Supply Voltage
5 V
Data Bus Width
8 Bit
Program Memory Type
ROMLess
Number Of Programmable I/os
40
Interface Type
I2C/UART
On-chip Adc
8-chx10-bit
Operating Temperature
0 to 70 °C
Number Of Timers
3
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Company
Part Number
Manufacturer
Quantity
Price
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Philips Semiconductors
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
2002 Sep 03
PORT 0
PORT 2
Single-chip 8-bit microcontroller with 10-bit A/D,
capture/compare timer, high-speed outputs, PWM
PSEN
ALE
RD
PORT 0
PORT 2
PSEN
ALE
t
AVLL
FROM RI OR DPL
A0–A7
t
LLAX
t
t
AVWL
LHLL
t
t
LLWL
AVLL
t
LLAX
A0–A7
t
Figure 2. External Program Memory Read Cycle
t
P2.0–P2.7 OR A8–A15 FROM DPH
AVDV
RLAZ
t
Figure 3. External Data Memory Read Cycle
LLDV
t
LLPL
t
AVIV
t
LLIV
t
RLDV
A8–A15
t
PLAZ
t
RLRH
t
t
t
PLIV
PXIX
PLPH
INSTR IN
16
t
RHDX
DATA IN
Q – Output data
R – RD signal
t – Time
V – Valid
W – WR signal
X – No longer a valid logic level
Z – Float
Examples: t
t
PXIZ
t
RHDZ
t
t
WHLH
AVLL
LLPL
= Time for address valid to
= Time for ALE low to
PSEN low.
ALE low.
A0–A7
A0–A7 FROM PCL
A8–A15 FROM PCH
A8–A15
80C552/83C552
SU01694
SU01695
INSTR IN
Product data