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CF5741AB fiches techniques PDF

Nippon Precision Circuits Inc - Analog Clock CMOS IC

Numéro de référence CF5741AB
Description Analog Clock CMOS IC
Fabricant Nippon Precision Circuits Inc 
Logo Nippon Precision Circuits Inc 





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CF5741AB fiche technique
NIPPON PRECISION CIRCUITS INC.
CF5741 series
Analog Clock CMOS IC
OVERVIEW
The CF5741 series are analog clock driver ICs
using 32.768kHz 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 applica-
tions for various clock specifications.
FEATURES
s Operating voltage 1.2 to 2.0V
s Low current 1.2µA (typ) / 1.5V
s Built-in oscillator circuits (32.768 kHz)
s Built-in crystal oscillator capacitors (CG, CD)
s Motor output
Various motor output
s Alarm output
Various alarm output
s Reset function
s Input debounce function (AI, RST/TC)
s Chip form (CF5741××)
PINOUT
(Top View)
VSS
AO1
AO2/F
Y
XTN
XT
1 SA5741 10
29
38
47
56
(0,0)
X
Chip size : 1.22 × 1.20 mm
Chip thickness : 400 ± 30 µm
Pad size : 100 × 100 µm
Reverse side : VDD level
OUT2
OUT1
AI
RST/TC
VDD
SERIES LINEUP
CF5741AA
Built-in capacitor
Reset input
XT terminal CG (pF)
XTN terminal CD (pF)
Active level
0
25
Low
(Pull-up resistor)
Active level
High
Motor output
Alarm input
Hand drive cycle tCY (sec)
Pulse width tPW (msec)
Active level
Test function (1/2VDD)
Terminal
1
31.25
Low
(Pull-up resistor)
Yes
AO1 AO2/F
Alarm output
Active level
Fundamental frequency fPW (Hz)
Modulation frequency fCY (Hz)
High
2048
8+1
High
32
1. AO is complete reverse phase of AO. (even output is inactive.)
CF5741AB
25
25
Low
(Pull-up resistor)
High
1
31.25
Low
(Pull-up resistor)
Yes
AO1 AO2/F
High High
2048 32
8+1
CF5741BA
0
25
Low
(Pull-up resistor)
High
1
46.875
Low
(Pull-up resistor)
Yes
AO1 AO2/F1
High Low
2048 2048
8+1 8+1
CF5741BB
27
25
Low
(Pull-up resistor)
High
1
46.875
Low
(Pull-up resistor)
Yes
AO1 AO2/F1
High Low
2048 2048
8+1 8+1
ORDERING INFORMATION
Device
CF5741××
Package
Chip form
NIPPON PRECISION CIRCUITS—1

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