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89LPC925 Datasheet(PDF) 44 Page - NXP Semiconductors

No. de pieza 89LPC925
Descripción Electrónicos  8-bit microcontrollers with accelerated two-clock 80C51 core 4 kB/8 kB 3 V low-power Flash with 8-bit A/D converter
PDF  49 Pages
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Fabricante Electrónico  PHILIPS [NXP Semiconductors]
Página de inicio  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

89LPC925 Datasheet(HTML) 44 Page - NXP Semiconductors

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Philips Semiconductors
P89LPC924/925
8-bit microcontrollers with accelerated two-clock 80C51 core
Product data
Rev. 03 — 15 December 2004
44 of 49
9397 750 14471
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Fig 12. Shift register mode timing.
0
1
23
45
6
7
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
tXLXL
002aaa425
Set TI
Set RI
tXHQX
tQVXH
tXHDV
tXHDX
Clock
Output Data
Write to SBUF
Input Data
Clear RI
Fig 13. External clock timing.
tCHCL
tCLCX
tCHCX
tC
tCLCH
002aaa416
0.2 VDD + 0.9
0.2 VDD - 0.1 V
VDD - 0.5 V
0.45 V
Table 11:
AC characteristics, ISP entry mode
VDD = 2.4 V to 3.6 V, unless otherwise specified.
Tamb = −40 °Cto+85 °C for industrial, unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
tVR
RST delay from VDD active
50
-
-
µs
tRH
RST HIGH time
1
-
32
µs
tRL
RST LOW time
1
-
-
µs
Fig 14. ISP entry waveform.
002aaa426
VDD
RST
tRL
tVR
tRH



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