![](http://datasheet.mmic.net.cn/380000/CM8870CFI_datasheet_16752803/CM8870CFI_9.png)
200
1
California Micro Devices Corp. All rights reserved.
12
/
18
/2001
9
215 Topaz Street, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
CM8870/70C
CALIFORNIA MICRO DEVICES
Figure 7. CM8870C Crystal Connection
(PLCC Package Only)
OSC1 OSC2
OSC3
Clock input of other devices
30pF
OSC1 of other CM887X's
OSC1
OSC2
3.58MHz
30pF
30pF
OSC1
OSC2
OSC1
OSC2
Figure 8. CM8870/70C Crystal Connection
Pin Assignments
IN+
IN
–
GS
V
REF
IC*
IC*
OSC 1
OSC 2
V
SS
V
DD
St/GT
ESt
StD
Q4
Q3
Q2
Q1
TOE
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
C
IN+
IN
–
GS
V
REF
INH
IC*
OSC 1
OSC 2
V
SS
V
DD
St/GT
ESt
StD
Q4
Q3
Q2
Q1
TOE
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
C
I
N
I
GS
V
REF
IC*
IC*
OSC 1
O
V
S
V
D
S
ESt
StD
NC
Q4
Q3
Q
Q
T
CM8870
4
5
6
7
8
9
1
1
1
1
18
17
16
15
14
3
2
1
2
1
I
G
I
GS
V
REF
PD
OSC 3
OSC 1
O
V
S
V
D
S
ESt
StD
NC
Q4
Q3
Q
Q
T
CM8870C
4
5
6
7
8
9
1
1
1
1
18
17
16
15
14
3
2
1
2
1
P
–
Plastic DIP (18)
F
–
Plastic SOP
EIAJ (18)
S
–
SPIC (18)
P
–
Plastic DIP (18)
F
–
Plastic SOP
EIAJ (18)
S
–
SOIC (18)
PE
–
PLCC (20)
*
–
Connected to V
SS
PE
–
PLCC (20)
Ordering Information
I
P
CM8870
CM8870C
Product Identification Number
Example:
Package
P
—
Plastic Dip (18)
F
—
Plastic SOP EIAJ (18)
PE
—
PLCC (20)
S
—
SOIC (18)
Temperature/Processing
None
—
0
C to 70
C, ±5% P.S. Tol.
I
—
–
40
C to 85
C, ±5% P.S. Tol.