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PDF CF5741BB Data sheet ( Hoja de datos )
| Número de pieza | CF5741BB | |
| Descripción | Analog Clock CMOS IC | |
| Fabricantes | Nippon Precision Circuits Inc | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CF5741BB (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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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
1 page  
CF5741 series
Reset Function
RST/TC goes to active level when motor output can be stopped. Motor output(AO1,AO2) restart of another
stopped output after reset off.
RST/TC
(Active Low)
OUT1
(Active High)
OUT2
(Active High)
tPW
tPW
t tCY CY
tON
t +0
CY −125msec
Alarm Output
Alarm input/output
AI
(Active Low)
tON
AO1
(Active High)
AO2/F*1
(Active High)
AO2/F*2
(Active Low)
fCY (Hz) fPW(Hz)
*1 : AO2 / F is the reverse phase of AO1, when output is active.
*2 : AO2 / F is complete reverse phase of AO1.
fPW : Alarm fundamental frequency
fCY : Alarm modulation frequency
NIPPON PRECISION CIRCUITS—5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet CF5741BB.PDF ] | |
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