9
All Intersil products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at website www.intersil.com/design/quality/iso.asp.
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice.
Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reli-
able. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may
result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see web site
www.intersil.com
Sales Office Headquarters
NORTH AMERICA
Intersil Corporation
2401 Palm Bay Rd.
Palm Bay, FL 32905
TEL: (321) 724-7000
FAX: (321) 724-7240
TEL: (32) 2.724.2111
FAX: (32) 2.724.22.05
EUROPE
Intersil SA
Mercure Center
100, Rue de la Fusee
1130 Brussels, Belgium
ASIA
Intersil Ltd.
8F-2, 96, Sec. 1, Chien-kuo North,
Taipei, Taiwan 104
Republic of China
TEL: 886-2-2515-8508
FAX: 886-2-2515-8369
FIGURE 9. 80C48 MICROPROCESSOR INTERFACE
Typical Applications
(Continued)
28
29
40
V
CC
V
DD
39 T1
P27 38
DB0 12
37
36
35
P17 34
P20 21
33
32
31
30
P10 27
26
PROG
25
22
23
24
80C48
μ
COMPUTER
2 XTAL1
13
14
15
16
17
18
19
3 XTAL2
4 RESET
5 SS
6 INT
7 EA
RD
8
20
V
SS
1 TO
PSEN
9
ALE
11
DB7
WR
10
27 28 29 30
CS2
34
36 OSC
35 V
SS
1 V
DD
+5V
8 DIGIT
LCD DISPLAY
SEGMENTS
DATA
B0-B3
HIGH ORDER DIGITS
ICM7211AM
INPUT
NC
+5V
I/O
I/O
DS1 DS2 CS1
31
32
33
2, 3, 4
6-26
BP 5
37-40
29
28
27
30
CS2
34
36 OSC
35 V
SS
1 V
DD
+5V
SEGMENTS
LOW ORDER DIGITS
ICM7211AM
DS1 DS2 CS1
31
32
33
DATA
B0-B3
2, 3, 4
6-26
BP 5
37-40
ICM7211A