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CF5760EA Schematic ( PDF Datasheet ) - Nippon Precision Circuits Inc

Teilenummer CF5760EA
Beschreibung CMOS Analog Clock IC
Hersteller Nippon Precision Circuits Inc
Logo Nippon Precision Circuits Inc Logo 




Gesamt 7 Seiten
CF5760EA Datasheet, Funktion
NIPPON PRECISION CIRCUITS INC.
CF5760 series
CMOS Analog Clock IC
OVERVIEW
The CF5760 series devices are analog clock ICs that derive their timing from a 32.768 kHz oscillator element.
They feature a reset function (optional seconds control function) which can be used to maintain accurate time.
Various alarm functions and motor outputs are available to match a wide range of clock specifications.
FEATURES
I 1.2 to 2.0V operating supply voltage
I 1.2µA (typ) / 1.5V current consumption
I 32.768 kHz oscillator circuit
I Oscillator capacitance CG and CD built-in
I Alarm output function
I Reset function (optional seconds control function)
I Input chattering elimination function (AI/R)
I Chip form (CF5760××)
PAD LAYOUT
Top view
VDD 1
9 XT
AI/R
O1
O2
(0,0)
2
3
4
HA5760
8
7
6
5
XTN
AON
AO
VSS
Chip size: 0.76 × 1.21 mm
Chip thickness: 300 ± 30 µm
Pad size: 100 × 100 µm
R everse side: V D D level
SERIES CONFIGURATION
CF5760AA CF5760BA CF5760CC
Built-in
C G (pF)
capacitance1 C D (pF)
Alarm input/reset input level
3
25
HIGH/LOW
3
25
HIGH/LOW
3
33
LOW/HIGH
Active level
LOW
LOW
HIGH
Motor output
Needle period
tC Y (s)
Pulsewidth
tP W (ms)
Pins
1
23.4
AO AON
1
23.4
AO AON
1
31.25
AO AON
Active level
HIGH LOW HIGH F HIGH LOW
(32kHz)
Frequency
Alarm output fP W (kHz)
4
4 DC
Modulation
fC Y (Hz)
8
8
IO H min (µA) 9 0 0 9 0 0 9 0 0
IO L min (µA) 9 0 0 9 0 0 1 0
–22
– 8+1 8+1
10 900 900
10 900 900
1. Built-in capacitance includes the parasitic capacitance.
CF5760DA
3
25
LOW/HIGH
LOW
1
27.3
AO AON
HIGH F
(32kHz)
DC –
––
900 10
10 10
CF5760EA
3
25
–/LOW
1
1000
AO AON
––
––
––
––
––
CF5760FC
3
33
LOW/HIGH
0.0625
62.5
AO AON
HIGH LOW
22
8+1 8+1
900 900
900 900
CF5760HA
3
25
LOW/HIGH
HIGH
1
46.875
AO AON
HIGH LOW
22
8+1 8+1
900 900
900 900
CF5760JA
3
25
LOW/HIGH
0.0625
62.5
AO AON
HIGH F
(32kHz)
DC –
––
900 10
10 10
ORDERING INFORMATION
Device
C F 5 7 6 0 ××
Package
Chip form
NIPPON PRECISION CIRCUITS—1






CF5760EA Datasheet, Funktion
CF5760 series
TYPICAL APPLICATION CIRCUITS
Alarm (HIGH)/Reset (LOW), Piezoelectric alarm
CG
X'tal
3k
Alarm
Switch
Reset
Switch
XT
XTN
AI/R
VDD
VSS
O1
O2
AO
AON
M
Piezo
Speaker
Reset (HIGH)/Alarm (LOW), DC Output, F Output
CG
X'tal
Reset
Switch
Alarm
3kSwitch
XT
XTN
AI/R
VDD
VSS
O1
M
O2
AO
F
M
Motor
Bell
NIPPON PRECISION CIRCUITS—6

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