CF5732 Series
NIPPON PRECISION CIRCUITS INC.
Analog clock CMOS IC
OVERVIEW
The CF5732 series are analog clock driver ICs using
32kHz reference frequency of crystal oscillator. Some
versions in accordance with the combinations of each
motor drive and alarm output characteristics can provide
a wide range of applications for various clock specifica-
tions.
The CF5732 series incorporates 4 types of pace adjust-
ment capacitors, which enables to adjust the pace with
bonding options.
FEATURES
- Built-in oscillator circuits(32.678 kHz)
On-chip feed back resistors (Rf, Rd)
Crystal oscillator capacitors (C
D
, C
G
)
Additional 4 capacitors for pace adjustment.
- Debounce circuit (AI terminal)
- Single 1.5 V supply
- Available as a die
SERIES LINEUP
CF5732EA
Built-in
Capacitor
XT terminal C
G
(pF)
XT terminal C
D
(pF)
C1(pF)
C2(pF)
C4(pF)
C4(pF)
Motor
Output
Alarm
Input
Alarm
Output
Active Level
Hand Drive Cycle(sec)
Pulse Width(msec)
Active Level
Test Function
Terminal
Active Level
Fundmental Frequency(Hz)
Modulation Frequency(Hz)
CF5732FA
11.5
29
6
7
8
9
H
1
31.25
L
Yes(1/2V
DD
)
AO
H
2048
8+1
1.0
AO
L(*2)
2048
8+1
−1.0
CF5732GA
10
25
3
4
5
6
L
1
31.25
L
Yes(1/2V
DD
)
AO
H
2048
8+1
1.0
AO
L(*1)
2048
8+1
−1.0
CF5732HA
11.5
29
6
7
8
9
H
1
15.6
L
Yes(1/2V
DD
)
AO
H
2048
16+1
AO
L(*2)
2048
16+1
CF5732JA
11.5
29
6
7
8
9
H
1
23.4375
L
Yes(1/2V
DD
)
AO
H
2048
8+1
1.0
AO
L(*2)
2048
8+1
CF5732KA
11.5
29
6
7
8
9
H
1
46.875
L
Yes(1/2V
DD
)
AO
H
2048
8+1
1.0
AO
L(*2)
2048
8+1
11.5
29
6
7
8
9
-
0.125
DUTY50%
L
Yes(1/2V
DD
)
AO
H
2048
8+1
1.0
AO
L(*1)
2048
8+1
−1.0
I
OH
MIN(mA)
I
OL
MIN(mA)
−1.0
1.0
−1.0
−1.0
(*1) AO is the reverse phase of AO, when output is active. (the same phase, when output is inactive)
(*2) AO is complete reverse phase of AO. (even output is inactive.)
NIPPON PRECISION CIRCUITS-1
NPC [ NIPPON PRECISION CIRCUITS INC ]
