P89LV51RD2BBC NXP Semiconductors, P89LV51RD2BBC Datasheet - Page 66
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P89LV51RD2BBC
Manufacturer Part Number
P89LV51RD2BBC
Description
MCU 8-Bit 89LV 80C51 CISC 64KB Flash 3.3V 44-Pin TQFP Tray
Manufacturer
NXP Semiconductors
Datasheet
1.P89LV51RD2BBC557.pdf
(76 pages)
Specifications of P89LV51RD2BBC
Package
44TQFP
Device Core
80C51
Family Name
89LV
Maximum Speed
40 MHz
Ram Size
1 KB
Program Memory Size
64 KB
Operating Supply Voltage
3.3 V
Data Bus Width
8 Bit
Program Memory Type
Flash
Number Of Programmable I/os
32
Interface Type
SPI/UART
Operating Temperature
0 to 70 °C
Number Of Timers
3
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
P89LV51RD2BBC
Manufacturer:
WCH
Quantity:
1 200
Company:
Part Number:
P89LV51RD2BBC,557
Manufacturer:
NXP Semiconductors
Quantity:
10 000
NXP Semiconductors
P89LV51RB2_RC2_RD2_5
Product data sheet
Fig 29. External program memory read cycle
PSEN
port 0
port 2
ALE
9.1 Explanation of symbols
Each timing symbol has 5 characters. The first character is always a ‘T’ (stands for time).
The other characters, depending on their positions, stand for the name of a signal or the
logical status of that signal. The characters are described below:
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 — High impedance (Float)
Example:
t
t
AVLL
LLPL
t
= Address valid to ALE LOW time
= ALE LOW to PSEN LOW time
AVLL
t
LHLL
t
LLAX
A0 to A7
Rev. 05 — 15 December 2009
t
LLPL
t AVIV
A8 to A15
t
PLAZ
t
t
PLIV
LLIV
INSTR IN
t
PXIX
P89LV51RB2/RC2/RD2
t
PXIZ
t
PLPH
8-bit microcontrollers with 80C51 core
t
PXAV
A0 to A7
A8 to A15
002aaa548
© NXP B.V. 2009. All rights reserved.
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