P83C652FFB View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
'P83C652FFB' PDF : 25 Pages View PDF
Phlips Semiconductors
CMOS single-chip 8-bit microcontrollers
Product specification
80C652/83C652
ALE
PSEN
tWHLH
WR
PORT 0
PORT 2
tLLWL
tWLWH
tAVLL
tLLAX
A0–A7
FROM RI OR DPL
tAVWL
tQVWX
tDW
DATA OUT
P2.0–P2.7 OR A8–A15 FROM DPH
tWHQX
A0–A7 FROM PCL
A8–A15 FROM PCH
Figure 4. External Data Memory Write Cycle
INSTR IN
INSTRUCTION
ALE
CLOCK
OUTPUT DATA
WRITE TO SBUF
INPUT DATA
CLEAR RI
0
1
2
3
4
5
6
7
8
tXLXL
tQVXH
tXHQX
tXHDV
tXHDX
VALID
VALID
VALID
VALID
VALID
Figure 5. Shift Register Mode Timing
VALID
VALID
SET TI
VALID
SET RI
1996 Aug 15
17
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