ICM7170 Datasheet, PDF (12/13 Pages) Intersil Corporation – Microprocessor-Compatible, Real-Time Clock

A11 AEN
S1
S2
S3
S4
A26 A5
A25 A6
A24 A7
A23 A8
A22 A9
ICM7170
C5
1
20
2
19
3
18
4
17
5
U3
16
6 ^74LS688 15
7
14
8
13
9
12
10
11
1
16
2
15
3
14
4
U1
13
5 ^74LS139 12
6
11
7
10
8
9
C6
IOR B14
IOW B13
A31 A0
A30 A1
A29 A2
A28 A3
A27 A4
C3 X1
C2
C1
S1
B4 IRQ2
S2
B23 IRQ5
POSITIVE INTERRUPT
S3
B24 IRQ4
S4
B25 IRQ3
TP1
R1 1K
DSI
INTERRUPT
SELECT
1
24
2
23
3
22
4
21
5
20
6
U2
19
7 ^ICM7170 18
8
17
9
16
10
15
11
14
12
13
J1
C4
C7
1
20
2
19
3
18
D7 A2
4
17
D6 A3
5
U5
16
6 ^74LS245 15
D5 A4
D4 A5
7
14
D3 A6
8
13
D2 A7
9
+
SR2
B1
10
-
R2
D1 OPTIONAL DIODE AND
RESISTOR SEE NOTE 8
12
D1 A8
11
D0 A9
5V B3.B29
GND B1.B31
FIGURE 9. IBM PC INTERFACE FOR ICM7170Y
All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification.
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 reliable. 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 http://www.intersil.com
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