p89lpc972fn NXP Semiconductors, p89lpc972fn Datasheet - Page 35
p89lpc972fn
Manufacturer Part Number
p89lpc972fn
Description
8-bit Microcontroller With Accelerated Two-clock 80c51 Core 2kb/4 Kb/8 Kb Wide-voltage Byte-erasable ?ash
Manufacturer
NXP Semiconductors
Datasheet
1.P89LPC972FN.pdf
(65 pages)
Available stocks
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Company:
Part Number:
P89LPC972FN
Manufacturer:
NXP
Quantity:
8 000
NXP Semiconductors
P89LPC97X_1
Preliminary data sheet
Fig 9.
P1.3/SDA
P1.2/SCL
I
2
C-bus serial interface block diagram
Rev. 01 — 17 December 2009
OUTPUT
OUTPUT
FILTER
FILTER
STAGE
STAGE
INPUT
INPUT
P1.3
P1.2
8-bit microcontroller with accelerated two-clock 80C51 core
status bus
I2SCLH
overflow
I2SCLL
I2CON
I2STAT
timer 1
AND SYNC LOGIC
SERIAL CLOCK
BIT COUNTER /
ARBITRATION
GENERATOR
SCL DUTY CYCLE REGISTERS
ADDRESS REGISTER
CONTROL REGISTERS AND
SHIFT REGISTER
DECODER
COMPARATOR
P89LPC970/971/972
STATUS
STATUS REGISTER
8
CONTROL
TIMING
LOGIC
AND
I2DAT
8
8
8
ACK
I2ADR
© NXP B.V. 2009. All rights reserved.
interrupt
CCLK
002aaa899
35 of 65
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