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P89LV51RB2 Datasheet(PDF) 68 Page - NXP Semiconductors

Part # P89LV51RB2
Description  8-bit 80C51 3 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM
Download  77 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

P89LV51RB2 Datasheet(HTML) 68 Page - NXP Semiconductors

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Philips Semiconductors
P89LV51RB2/RC2/RD2
8-bit microcontrollers with 80C51 core
Product data
Rev. 04 — 02 December 2004
68 of 77
9397 750 14342
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Fig 31. External data memory read cycle.
002aaa549
PORT 2
PORT 0
WR
PSEN
ALE
tLHLL
P2[7:0] or A8-A15 FROM DPH
A0-A7 FROM RI or DPL
DATA OUT
INSTR IN
tAVLL
tAVWL
tLLWL
tLLAX
tWLWH
tQVWH
tWHQX
tWHLH
A8-A15 FROM PCH
A0-A7 FROM PCL
Fig 32. External data memory write cycle.
002aaa550
PORT 2
PORT 0
WR
PSEN
ALE
tLHLL
P2[7:0] or A8-A15 FROM DPH
A0-A7 FROM RI or DPL
DATA OUT
INSTR IN
tAVLL
tAVWL
tLLWL
tLLAX
tWLWH
tQVWH
tWHQX
tWHLH
A8-A15 FROM PCH
A0-A7 FROM PCL
Table 71:
External clock drive
Symbol
Parameter
Oscillator
Unit
12 MHz
Variable
Min
Max
Min
Max
1/TCLCL
oscillator frequency
-
-
0
33
MHz
tCLCL
83
-
--ns
tCHCX
high time
-
-
0.35TCLCL
0.65TCLCL
ns


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