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CF5746ABA 데이터시트 PDF




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부품번호 CF5746ABA 기능
기능 CMOS Analog Clock IC
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CF5746ABA 데이터시트, 핀배열, 회로
NIPPON PRECISION CIRCUITS INC.
CF5746 Series
CMOS Analog Clock IC
OVERVIEW
The CF5746 Series devices are analog clock ICs that
derive their timing from a 32 kHz oscillator element.
They feature alarm outputs, snooze function and
alarm auto-stop function. They can be configured to
match a wide variety of clock specifications, alarm
functions and motor outputs.
FEATURES
s 32.768 kHz oscillator circuit
• Rf and Rd built-in
• Oscillator capacitance built-in
- CD = 30 pF (typ, excluding CF5746ADC)
- CD = 20 pF (typ, CF5746ADC)
s Alarm outputs
• Compatible with electronic sound alarms and
motor bells
• 4-step increasing volume alarm output
(CF5746AAB, ADC, AEA, AFA (AO1), AGA
(AO1))
s Snooze function
• Temporarily stops alarm output and then re-
starts after a fixed time
s Debouce circuit (AI/SNZ pin)
s Test functions
• Shortening snooze time and auto-stop time
• Increasing motor speed (excluding
CF5746BCA)
s Power-ON clear function
s 1.5 V supply voltage
s Chip form
SERIES CONFIGURATION
Built-in
XT pin CG (pF)
capacitance XT pin CG (pF)
Active level
Motor output Needle period tCY (s)
Pulsewidth tPW(ms)
Alarm active level
Pin type
SNZ interface
AI/SNZ input
SNZ time tSNZ (s)
Bounce delay (ms)
SNZ release
Pins
Active level
Frequency fPW (Hz)
Modulation fCY(Hz)
Step 1
Step 2
Duty (%)
Step 3
Alarm output
Step 4
Step 1
Step 2
Step time
(s) Step 3
Step 4
Pad layout
Other
IOH min (mA)
IOL min (mA)
Auto-stop tSTOP (s)
CF5746AAB
None
30
HIGH
1
23.4375
LOW
512 Hz
Yes
256
31.25
No
AO AO
HIGH LOW1
4096 4096
8+1 8+1
12.5 12.5
25 25
50 50
––
0 to 7 0 to 7
7 to 15 7 to 15
15 to 15 to
AS2 AS
CF5746ABA
None
30
HIGH
1
31.25
LOW
512 Hz
Yes
256
31.25
No
AO1 AO2
HIGH HIGH
DC DC
––
––
––
––
––
––
––
––
––––
0.8 0.8
0.8 0.8
128
A
0.8 0.8
0.8 0.8
128
A
CF5746BCA CF5746ADC CF5746AEA
None
None
None
30 20 30
HIGH
HIGH
0.125
1
1
50% duty
46.875
31.25
LOW HIGH LOW
512 Hz
512 Hz
512 Hz
Yes No Yes
256 256 256
31.25
31.25
31.25
No No No
AO1 AO2 AO AO AO AO
HIGH HIGH HIGH LOW1 HIGH LOW1
DC DC 2048 2048 2048 2048
– – 8+1 8+1 8+1 8+1
– – 6.26 6.26 6.26 6.26
– – 12.5 12.5 12.5 12.5
– – 25 25 50 50
– – 50 50 – –
– – 0 to 3 0 to 3 0 to 7 0 to 7
– – 3 to 7 3 to 7 7 to 15 7 to 15
7 to 31 7 to 31
15 to
AS
15 to
AS
31 to 31 to
AS AS
0.8 0.8 0.8 0.8 0.8 0.8
0.8 0.8 0.002 0.002 0.8 0.8
128 128 128
BAA
Power-ON clear, oscillator Rd and Rf built-in
C F 5 7 4 6 A FA
None
30
HIGH
1
46.875
LOW
Pull-up
Yes
256
31.25
Yes (2 s)
AO1 AO2
HIGH HIGH
2048 DC
8+1 –
12.5 –
25 –
50 –
––
0 to 7 –
7 to 15 –
15 to
AS
––
0.8 0.8
0.002 0.8
128
A
1. AO has the opposite polarity to AO only when output (same phase when non-active).
2. AS = auto-stop
C F 5 7 4 6 AG A
None
30
HIGH
1
31.25
LOW
Pull-up
Yes
256
31.25
Yes (2 s)
AO1 AO2
HIGH HIGH
2048 DC
8+1 –
6.26 –
12.5 –
50 –
––
0 to 7 –
7 to 15 –
15 to
AS
––
0.8 0.8
0.002 0.8
128
A
NIPPON PRECISION CIRCUITS—1




CF5746ABA pdf, 반도체, 판매, 대치품
CF5746 Series
FUNCTIONAL DESCRIPTION
Alarm Input/Output
AI/SNZ input Deboucing circuit
A bounce delay is provided on the AI/SNZ input,
regardless of whether the input is LOW or HIGH, to
eliminate erroneous operation caused by input
bounce. For tON 31.25 ms, any alarm input or
snooze input signal is ignored. For tON 62.5 ms,
the alarm input or snooze input is accepted.
Alarm/snooze function
An active level on AI/SNZ for 62.5 ms triggers the
alarm function, and alarm operation starts.
During alarm output, an active level on AI/SNZ for
62.5 ms triggers the snooze function. In snooze
mode, the alarm output is temporarily stopped for an
interval of approximately 256 seconds. After this
interval ends, alarm output restarts.
Alarm active level
SNZ interface
SNZ time tSNZ(s)
SNZ release
CF5746AAB
LOW
Yes
256
No
CF5746ABA
LOW
Yes
256
No
CF5746BCA
LOW
Yes
256
No
For devices other than the CF5746ADC, the snooze
interval count is restarted from 0 if another snooze
input is received while in snooze mode. After the
snooze interval ends, alarm output restarts.
For the CF5746AFA and AGA, an active level on
AI/SNZ for 2 s in snooze mode cancels the snooze
and immediately the alarm signal restarts (snooze
release).
CF5746ADC
HIGH
No
256
No
CF5746AEA
LOW
Yes
256
No
C F 5 7 4 6 A FA
LOW
Yes
256
Yes (2 s)
C F 5 7 4 6 AG A
LOW
Yes
256
Yes (2 s)
Alarm output
The CF5746 Series devices feature a combination of
various alarm output options to cover a wide range of
clock specifications.
s Step output function (CF5746AAB, ADC, AEA,
AFA (AO1), AGA (AO1))
The alarm output increases in volume over 3 or 4
steps, depending on the device selected.
s Auto-stop function
After the alarm has been active continuously for
128 seconds, auto-stop mode becomes active and
the output stops.
Pins
Active level
Frequency fPW (Hz)
Modulation fCY (Hz)
Step 1
Step 2
Duty (%)
Step 3
Step 4
Step 1
Step 2
Step time
(s) Step 3
Step 4
Auto-stop tSTOP(s)
CF5746AAB
AO AO
HIGH LOW1
4096 4096
8+1 8+1
12.5 12.5
25 25
50 50
––
0 to 7 0 to 7
7 to 15 7 to 15
15 to
AS2
15 to AS
––
128
CF5746ABA
AO1 AO2
HIGH HIGH
DC DC
––
––
––
––
––
––
––
––
––
128
CF5746BCA
AO1 AO2
HIGH HIGH
DC DC
––
––
––
––
––
––
––
CF5746ADC
AO AO
HIGH LOW1
2048 2048
8+1 8+1
6.26 6.26
12.5 12.5
25 25
50 50
0 to 3 0 to 3
3 to 7 3 to 7
CF5746AEA
AO AO
HIGH LOW1
2048 2048
8+1 8+1
6.26 6.26
12.5 12.5
50 50
––
0 to 7 0 to 7
7 to 15 7 to 15
C F 5 7 4 6 A FA
AO1 AO2
HIGH HIGH
2048 DC
8+1 –
12.5 –
25 –
50 –
––
0 to 7
7 to 15 –
C F 5 7 4 6 AG A
AO1 AO2
HIGH HIGH
2048 DC
8+1 –
6.26 –
12.5 –
50 –
––
0 to 7
7 to 15 –
– – 7 to 31 7 to 31 15 to AS 15 to AS 15 to AS – 15 to AS –
––
128
31 to AS 31 to AS
128
––
128
––
128
––
128
1. AO has the opposite polarity to AO only when output (same phase when non-active).
2. AS = auto-stop
NIPPON PRECISION CIRCUITS—4

4페이지










CF5746ABA 전자부품, 판매, 대치품
CF5746 Series
Alarm/Snooze Input and Alarm Output
AI/ SNZ
512Hz *3
AO, AO1*1
tON 62.5
msec
tON 62.5
msec
tON 62.5
msec
AO
tON 2 *4
sec
tON 62.5
msec
tSNZ *5
(Restart)
tSNZ= 0 *4
sec
tSNZ
tSTOP= 128
sec
AO1*2, AO2
(DC Output)
*1: CF5746AFA, AGA
*2: CF5746ABA, BCA
*3: CF5746AAB, ABA, BCA, ADC, AEA
*4: CF5746AFA, AGA
*5: CF5746AAB, ABA, BCA, AEA, AFA, AGA
Alarm/Snooze Input (Deboucing Circuit)
AI/ SNZ
(L to H)
AI/ SNZ
(H to L)
t tCH ON
NIPPON PRECISION CIRCUITS INC. reserves the right to make changes to the products described in this data sheet in order to
improve the design or performance and to supply the best possible products. Nippon Precision Circuits Inc. assumes no responsibility for
the use of any circuits shown in this data sheet, conveys no license under any patent or other rights, and makes no claim that the circuits
are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Nippon Precision
Circuits Inc. makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification.
The products described in this data sheet are not intended to use for the apparatus which influence human lives due to the failure or
malfunction of the products. Customers are requested to comply with applicable laws and regulations in effect now and hereinafter,
including compliance with export controls on the distribution or dissemination of the products. Customers shall not export, directly or
indirectly, any products without first obtaining required licenses and approvals from appropriate government agencies.
NIPPON PRECISION CIRCUITS INC.
NIPPON PRECISION CIRCUITS INC.
4-3, 2-chome Fukuzumi
Koutou-ku, Tokyo 135-8430, Japan
Telephone: 03-3642-6661
Facsimile: 03-3642-6698
NC9417AE 1996.04
NIPPON PRECISION CIRCUITS—7

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관련 데이터시트

부품번호상세설명 및 기능제조사
CF5746ABA

CMOS Analog Clock IC

Nippon Precision Circuits Inc
Nippon Precision Circuits Inc

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