ICM7211 Datasheet, PDF (12/12 Pages) Intersil Corporation – 4-Digit, ICM7211 (LCD) and ICM7212 (LED) Display Drivers

Typical Applications (Continued)
ICM7211, ICM7212
8 DIGIT
LCD DISPLAY
NC
INPUT
+5V
40 26
V_CC V_DD
2 XTAL1
20 _{P10 27}
V_SS
28
29
30
31
3 XTAL2
4 RESET
32
33
P17 34
7 EA
P20 21
22
23
24
5 SS
80C48
35
µCOMPUTER ³⁶
37
1 TO
P27 38
DB0 12
39 T1
13
14
6 INT
15
16
17
18
DB7 19
ALE PSEN PROG WR RD
11 9 25 10 8
ICM7211M
HIGH ORDER DIGITS
+5V 1 V_DD
2, 3, 4
SEGMENTS 6-26
35 V_{SS DATA}
37-40
BP 5
36 OSC B0-B3
I /O
DS1 DS2 CS1 CS2
27 28 29 30 31 32 33 34
I /O
ICM7211M
LOW ORDER DIGITS
BP 5
DATA
2, 3, 4
6-26 SEGMENTS
1 V_DD
37-40
35 V_SS
36 OSC
+5V
B0-B3
DS1 DS2 CS1 CS2
27 28 29 30 31 32 33 34
FIGURE 13. 80C48 MICROPROCESSOR INTERFACE
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