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PD243X View Datasheet(PDF) - OSRAM GmbH

Part Name
Description
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PD243X Datasheet PDF : 7 Pages
1 2 3 4 5 6 7
Figure 4. Interface circuit
27
P3.6 RESET 10
1K
+
4.7 µF
P2.2
P2.1
P2.0
43
42
41
ALE
EA
50
51
VAREF 11
W1
VAGND 12
W2
80515/
80535
µC
VBB 37 C1
P0.7
P0.6
P0.5
P0.4
P0.3
P0.2
P0.1
P0.0
59 100nF
58
57
56
55
54
53
52
PSEN
GND
49
38
39
12 MHz
40
VCC
P2.4 P2.6 68
P2.3 P2.5 P2.7
44 45 46 47 48
C2
22 PF
C1
22 PF
VCC
20 10 1
11
18
17
14
13
8
7
4
3
74LS373
D7
Q7
D6
Q6
D5
Q5
D4
Q4
D3
Q3
D2
Q2
D1
Q1
D0
Q0
19
16
15
12
9
6
5
2
VCC
24
19
22
23
A10
A9
A8
2716A
PROM
A7
A6
A5
A4
A3
A2
A1
A0
17
16
15
14
13
11
10
9
D7
D6
D5
D4
D3
D2
D1
D0
20 OE
GND CE
12 18
12
13
14
15
16
17
18
19
6
5
7
8
9
D7
D6
D5
RD
D4 CLKSEL
D3
D2 PD2435
D1 DISPLAY
D0
CEO GND
CE1
A2
WR
A1
A0
VCC
1
3
20
10
11
P3.6
12
13
14
15
16
17
18
19
6
5
7
8
9
D7
D6
D5
RD
D4 CLKSEL
D3
D2 PD2435
D1 DISPLAY
D0
CEO GND
CE1
A2
WR
A1
A0
1
3
20
10
11
VCC
P3.6
12
13
14
15
16
17
18
19
6
5
7
8
9
D7
D6
D5
RD
D4 CLKSEL
D3
D2 PD2435
D1 DISPLAY
D0
CEO GND
CE1
A2
WR
A1
A0
VCC
1
3
20
10
11
P3.6
12
13
14
15
16
17
18
19
6
5
7
8
9
D7
D6
D5
RD
D4 CLKSEL
D3
D2 PD2435
D1 DISPLAY
D0
CEO GND
CE1
A2
WR
A1
A0
1
3
20
10
11
VCC
P3.6
Figure 5. Program flow chart
START
Start address of
message in
DPTR. Character
count in R5.
Start address
of RAM buffer
in R0.
Read next
character of
the message.
Shift character
YES
in RAM buffer
from bottom
to top up.
interrupt
flag set?
Transfer
character to
NO
the top of
RAM buffer.
Shift character
character = 0? to display from
NO RAM buffer.
Wait loop from
the current
value of the
A/D converter.
YES
2000 Inneon Technologies Corp. Optoelectronics Division San Jose, CA
www.inneon.com/opto 1-888-Inneon (1-888-463-4636)
OSRAM Opto Semiconductors GmbH & Co. OHG Regensburg, Germany
www.osram-os.com +49-941-202-7178
4
Appnote 49
May 31, 2000-14
 

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