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P80C552IBB Datasheet(PDF) 17 Page - NXP Semiconductors

Part # P80C552IBB
Description  Single-chip 8-bit microcontroller
PDF  24 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

P80C552IBB Datasheet(HTML) 17 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
80C552/83C552
Single-chip 8-bit microcontroller
1998 Aug 13
17
tLLAX
ALE
PSEN
PORT 0
PORT 2
Figure 4. External Data Memory Write Cycle
WR
A0–A7
FROM RI OR DPL
DATA OUT
A0–A7 FROM PCL
INSTR IN
P2.0–P2.7 OR A8–A15 FROM DPH
A8–A15 FROM PCH
tWHLH
tLLWL
tWLWH
tAVLL
tAVWL
tQVWX
tWHQX
tDW
0.8V
tLOW
tHIGH
Figure 5. External Clock Drive XTAL1
VIH1
VIH1
0.8V
tCLCL
tr
tf
VIH1
VIH1
0.8V
0.8V
Figure 6. Shift Register Mode Timing
0
1
2
3
4
5
678
INSTRUCTION
ALE
CLOCK
OUTPUT DATA
WRITE TO SBUF
INPUT DATA
CLEAR RI
VALID
VALID
VALID
VALID
VALID
VALID
VALID
VALID
SET TI
SET RI
tXLXL
tQVXH
tXHQX
tXHDX
tXHDV
01
2
345
6
7



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