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P89LPC9331 датащи(PDF) 52 Page - NXP Semiconductors

номер детали P89LPC9331
подробное описание детали  8-bit microcontroller with accelerated two-clock 80C51 core, 4 kB/8 kB/16 kB 3 V byte-erasable
PDF  94 Pages
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производитель  NXP [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo NXP - NXP Semiconductors

P89LPC9331 датащи(HTML) 52 Page - NXP Semiconductors

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P89LPC9331_9341_9351_9361
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 5 — 10 January 2011
52 of 94
NXP Semiconductors
P89LPC9331/9341/9351/9361
8-bit microcontroller with accelerated two-clock 80C51 core
7.26.1 Internal reference voltage
An internal reference voltage generator may supply a default reference when a single
comparator input pin is used. The value of the internal reference voltage, referred to as
Vref(bg), is 1.23 V ± 10 %.
Fig 20. Comparator input and output connections (P89LPC9331/9341)
comparator 1
CP1
CN1
(P0.4) CIN1A
(P0.3) CIN1B
(P0.5) CMPREF
Vref(bg)
OE1
CO1
CMF1
interrupt
002aae483
CMP1 (P0.6)
EC
CMF2
comparator 2
OE2
CO2
CMP2 (P0.0)
CP2
CN2
(P0.2) CIN2A
(P0.1) CIN2B
change detect
change detect
Fig 21. Comparator input and output connections (P89LPC9351/9361)
comparator 1
CP1
CN1
(P0.4) CIN1A
(P0.3) CIN1B
(P0.5) CMPREF
Vref(bg)
OE1
CO1
CMF1
interrupt
002aad561
CMP1 (P0.6)
EC
CMF2
comparator 2
OE2
CO2
CMP2 (P0.0)
CP2
CN2
(P0.2) CIN2A
(P0.1) CIN2B
PGA1
change detect
change detect



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