Electronic Components Datasheet Search
Selected language     English  ▼
Part Name
         Description


CF5746AAB Datasheet(PDF) 1 Page - Nippon Precision Circuits Inc

Part No. CF5746AAB
Description  CMOS Analog Clock IC
Download  7 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  NPC [Nippon Precision Circuits Inc]
Homepage  http://www.npc.co.jp/en
Logo 

   
 1 page
background image
CF5746 Series
NIPPON PRECISION CIRCUITS—1
NIPPON PRECISION CIRCUITS INC.
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
CF5746AAB
CF5746AB A
CF5746BCA
CF5746ADC
CF5746AEA
CF5746AFA
CF5746AG A
Built-in
capacitance
XT pin CG (pF)
None
None
None
None
None
None
None
XT pin CG (pF)
30
30
30
20
30
30
30
Motor output
Active level
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
Needle period tCY (s)
1
1
0.125
1111
Pulsewidth tPW(ms)
23.4375
31.25
50% duty
46.875
31.25
46.875
31.25
AI/SNZ input
Alarm active level
LOW
LOW
LOW
HIGH
LOW
LOW
LOW
Pin type
512 Hz
512 Hz
512 Hz
512 Hz
512 Hz
Pull-up
Pull-up
SNZ interface
Yes
Yes
Yes
No
Yes
Yes
Yes
SNZ time tSNZ (s)
256
256
256
256
256
256
256
Bounce delay (ms)
31.25
31.25
31.25
31.25
31.25
31.25
31.25
SNZ release
No
No
No
No
No
Yes (2 s)
Yes (2 s)
Alarm output
Pins
AO
AO
AO1
AO2
AO1
AO2
AO
AO
AO
AO
AO1
AO2
AO1
AO2
Active level
HIGH
LOW1
1. AO has the opposite polarity to AO only when output (same phase when non-active).
HIGH
HIGH
HIGH
HIGH
HIGH
LOW1
HIGH
LOW1
HIGH
HIGH
HIGH
HIGH
Frequency fPW (Hz)
4096
4096
DC
DC
DC
DC
2048
2048
2048
2048
2048
DC
2048
DC
Modulation fCY(Hz)
8+1
8+1
––––
8+1
8+1
8+1
8+1
8+1
8+1
Duty (%)
Step 1
12.5
12.5
––––
6.26
6.26
6.26
6.26
12.5
6.26
Step 2
25
25
––––
12.5
12.5
12.5
12.5
25
12.5
Step 3
50
50
––––
25
25
50
50
50
50
Step 4
––––––
50
50
––––––
Step time
(s)
Step 1
0 to 7
0 to 7
––––
0 to 3
0 to 3
0 to 7
0 to 7
0 to 7
0 to 7
Step 2
7 to 15
7 to 15
––––
3 to 7
3 to 7
7 to 15
7 to 15
7 to 15
7 to 15
Step 3
15 to
AS2
2. AS = auto-stop
15 to
AS
––––
7 to 31
7 to 31
15 to
AS
15 to
AS
15 to
AS
15 to
AS
Step 4
––––––
31 to
AS
31 to
AS
––––––
IOH min (mA)
−0.8
−0.8
−0.8
−0.8
−0.8
−0.8
−0.8
−0.8
−0.8
−0.8
−0.8
−0.8
−0.8
−0.8
IOL min (mA)
0.8
0.8
0.8
0.8
0.8
0.8
0.002
0.002
0.8
0.8
0.002
0.8
0.002
0.8
Auto-stop tSTOP (s)
128
128
128
128
128
128
128
Pad layout
AABAAAA
Other
Power-ON clear, oscillator Rd and Rf built-in




Html Pages

1  2  3  4  5  6  7 


Datasheet Download



Related Electronics Part Number

Part NumberComponents DescriptionHtml ViewManufacturer
CF5750AAnalog Clock CMOS IC 1 2 3 4 Nippon Precision Circuits Inc
CF5732EAAnalog clock CMOS IC 1 2 3 4 5 MoreNippon Precision Circuits Inc
CF5741AAAnalog Clock CMOS IC 1 2 3 4 5 MoreNippon Precision Circuits Inc
ADG528ACMOS LATCHED 4/8 CHANNEL ANALOG MULTIPLEXERS 1 2 3 4 5 MoreAnalog Devices
CWB308CMOS/DMOS Quad Monolithic SPST Wide Band Analog Switches 1 2 3 4 5 MoreCalogic, LLC
CD4067BMSCMOS Analog Multiplexers/Demultiplexers 1 2 3 4 5 MoreIntersil Corporation
HS-0508RHRadiation Hardened Single 8/Differential 4-Channel CMOS Analog Multiplexers 1 2 3 4 5 MoreIntersil Corporation
IH61088-Channel CMOS Analog Multiplexer 1 2 3 4 5 MoreIntersil Corporation
DG506AMonolithic CMOS Analog Multiplexers 1 2 3 4 5 MoreMaxim Integrated Products

Link URL

Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Bookmark   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com 2003 - 2017    


Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl