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CF5761 Datasheet, PDF (2/10 Pages) Nippon Precision Circuits Inc – CMOS Analog Clock IC with Alarm Function
◁
CF5761 series
SERIES LINEUP
Built-in
capacitance1
CG [pF]
CD [pF]
Active level
Motor output
AI input
Needle period tCY [s]
Pulsewidth tPW [ms]
Active level
Bounce delay [ms]
Active level
SN input
Snooze time tSNZ [s]
Bounce delay [ms]
SEL pin
Application
Alarm output
Pin
Active level
Frequency fPW [kHz]
Step 1
Modulation Step 2
fCY [Hz] Step 3
Step 4
Step 1
Duty [%]
Step 2
Step 3
Step 4
Step 1
Step 2
Step time [s]
Step 3
Step 4
Auto-stop [s]
IOH [mA] min.
IOL [mA] min.
CF5761CA
4
27
–
0.0625 (8Hz sweep)
62.5 (50% duty)
HIGH (pull-down)
62.5
HIGH (pull-down)
300
62.5
LOW
HIGH
Simple alarm
Simple alarm
AO1, AO3: tone
AO2: motor bell
AO1, AO3: tone
AO2: Magnet speaker
AO1 AO2 AO3 AO1 AO2 AO3
H
H
L
H
4 DC 4
2
8
–
8
8
–
–
–
–
–
–
–
–
–
–
–
–
50
–
50 64Hz 50 32Hz
clock
clock
–
–
– output – output
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
None
−0.9 −0.9 −0.9 −0.9 −0.9 −0.9
0.9 0.01 0.9 0.9 0.01 0.9
CF5761EA
4
27
LOW
1
23.4
HIGH (pull-down)
62.5
HIGH (pull-down)
300
62.5
LOW
HIGH
Step tone alarm
Simple alarm
AO1, AO2: motor bell AO1, AO2: motor bell
AO1 AO2 AO3 AO1
H
L
H
–
–
DC
1+2+4+8 1+2+4+8
–
1+2+8 1+2+8
–
1+8 1+8
–
DC DC
–
50 50 32kHz –
F
50 50 output –
50 50
–
–
–
–
0–8 0–8
–
8–16 8–16
–
16–24 16–24
–
24– 24–
–
None
−0.9 −0.01 −0.01 −0.9
0.01 0.9 0.01 0.01
AO2 AO3
L
DC
–
–
–
–
– 32kHz
F
– output
–
–
–
–
–
–
−0.01 −0.01
0.9 0.01
CF5761HA
4
27
LOW
10
13.7
HIGH (pull-down)
62.5
HIGH (pull-down)
300
62.5
LOW
HIGH
Simple alarm
Simple alarm
AO1, AO3: tone
AO1, AO3: tone
AO1 AO2 AO3 AO1 AO2 AO3
H
H
L
H
H
L
4
–
4
4
–
4
1+16 1+16 1+16
–
–
–
–
–
–
–
–
–
–
–
–
–
50
–
50
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
None
−0.9 −0.9 −0.9 −0.9 −0.9 −0.9
0.9 0.01 0.9 0.9 0.01 0.9
1. CG and CD built-in parasitic capacitance (CG = CD = 4pF)
Built-in
capacitance1
CG [pF]
CD [pF]
Active level
Motor output
AI input
Needle period tCY [s]
Pulsewidth tPW [ms]
Active level
Bounce delay [ms]
Active level
SN input
Snooze time tSNZ [s]
Bounce delay [ms]
SEL pin
Application
Alarm output
Pin
Active level
Frequency fPW [kHz]
Step 1
Modulation Step 2
fCY [Hz] Step 3
Step 4
Step 1
Duty [%]
Step 2
Step 3
Step 4
Step 1
Step 2
Step time [s]
Step 3
Step 4
Auto-stop [s]
IOH [mA] min.
IOL [mA] min.
CF5761LB
4
34
LOW
1
31.3
LOW (pull-up)
62.5
LOW (pull-up)
300
62.5
LOW
HIGH
Step volume alarm
Simple alarm
AO1, AO2: tone
AO1, AO2: motor bell
AO1 AO2 AO3 AO1 AO2 AO3
H
L
H
H
2
2
DC DC
1+8 1+8
–
–
1+8 1+8
–
–
1+8 1+8
–
–
–
–
–
–
6.25 6.25 Not –
12.5 12.5 used –
– Not
– used
50 50
–
–
–
–
–
–
0–8 0–8
–
–
8–16 8–16
–
–
16– 16–
–
–
–
–
–
–
300
−0.9 −0.9 −0.9 −0.9 −0.9 −0.9
0.9 0.9 0.9 0.9 0.9 0.9
1. CG and CD built-in parasitic capacitance (CG = CD = 4pF)
CF5761MB
4
34
–
0.0625 (8Hz sweep)
62.5 (50% duty)
LOW (pull-up)
62.5
LOW (pull-up)
300
62.5
LOW
HIGH
Step volume alarm
Simple alarm
AO1, AO2: tone
AO1, AO2: motor bell
AO1 AO2 AO3 AO1 AO2 AO3
H
L
H
H
2
2
DC DC
1+8 1+8
–
–
1+8 1+8
–
–
1+8 1+8
–
–
1+8 1+8
–
–
6.25 6.25 Not –
12.5 12.5 used –
– Not
– used
25 25
–
–
50 50
–
–
0–4 0–4
–
–
4–8 4–8
–
–
8–12 8–12
–
–
12– 12–
–
–
300
−0.9 −0.9 −0.9 −0.9 −0.9 −0.9
0.9 0.9 0.9 0.9 0.9 0.9
CF5761NB
4
34
LOW
1
23.4
LOW (pull-up)
62.5
LOW (pull-up)
300
62.5
LOW
HIGH
Step volume alarm
Step volume alarm
AO1, AO2: tone
AO1, AO2: tone
AO1 AO2 AO3 AO1 AO2 AO3
H
L
H
L
4
4
2
2
1+8 1+8
1+8 1+8
1+8 1+8
1+8 1+8
1+8 1+8
1+8 1+8
–
–
–
–
6.25 6.25 Not 12.5 12.5 Not
12.5 12.5 used 25 25 used
50 50
50 50
–
–
–
–
0–8 0–8
0–8 0–8
8–16 8–16
8–16 8–16
16– 16–
16– 16–
–
–
–
–
300
−0.9 −0.9 −0.9 −0.9 −0.9 −0.9
0.9 0.9 0.9 0.9 0.9 0.9
SEIKO NPC CORPORATION —2
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