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P89C668 Datasheet(PDF) 14 Page - NXP Semiconductors

Part # P89C668
Description  80C51 8-bit Flash microcontroller family
PDF  89 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

P89C668 Datasheet(HTML) 14 Page - NXP Semiconductors

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Philips Semiconductors
Product data
P89C660/P89C662/P89C664/
P89C668
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/1KB/2KB/8KB RAM
2002 Oct 28
14
fOSC/4
ADDRESS REGISTER
COMPARATOR
SHIFT REGISTER
CONTROL REGISTER
STATUS REGISTER
ARBITRATION &
SYNC LOGIC
TIMING
&
CONTROL
LOGIC
SERIAL CLOCK
GENERATOR
ACK
STATUS
DECODER
TIMER 1
OVERFLOW
INTERRUPT
8
8
8
8
S1STA
STATUS BITS
S1CON
S1DAT
INPUT
FILTER
OUTPUT
STAGE
P1.7
INPUT
FILTER
OUTPUT
STAGE
P1.6
P1.6/SCL
P1.7/SDA
S1ADR
su00966
Figure 3. I2C Bus Serial Interface Block Diagram



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