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PDF STCL132K Data sheet ( Hoja de datos )
| Número de pieza | STCL132K | |
| Descripción | silicon oscillator | |
| Fabricantes | STMicroelectronics | |
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STCL132K
32,768 Hz silicon oscillator
Features
■ Fixed frequency 32,768 Hz
■ ±1.0% (0 to 70 °C), ±1.2% (–30 to 85 °C)
frequency accuracy over all conditions
■ 1.65 to 1.95 V, 2.7 to 3.6 V operation
■ Low operating current, ultra low standby
current
■ Push-pull, CMOS compatible frequency
(square wave) output
■ Chip enable input, active high, internal 150 kΩ
pull-down
■ Fast and stable startup
■ No external components required
■ Temperature range: –30 to +85 °C
■ Package: SC70-5L
■ RoHS compliant
Applications
■ Low-speed microprocessor clock
■ Display drivers
www.DataS■heeAt4nUy.caopmplication with multiple inputs sharing
a common clock source
Description
SOT323-5 (SC70-5L)
(W8)
The STCL132K silicon oscillator devices are reliable, easy to use, 5-pin low-cost silicon oscillators
developed primarily for microprocessor clock applications, display drivers or other system applications
where tighter clock accuracy is not critical. Compared to crystal oscillators, silicon oscillators offer the
advantages of faster startup, smaller size and improved immunity to shock, vibration and EMI.
The STCL132K silicon oscillator devices are equipped with chip enable input, offering an easy way to
stop microprocessor clocking during a power saving mode while at the same time significantly reducing
the oscillator current consumption.
April 2008
Rev 5
1/20
www.st.com
1
1 page  
STCL132K
1 Pin descriptions
Figure 1. SC70-5L pin connections
Pin descriptions
CE 1
NC 2
FOUT 3
5 VCC
4 GND
AI12658
Table 1. Signal names
Symbol
Description
VCC
FOUT
CE
GND
NC
Positive supply voltage pin
Frequency (square wave) output, CMOS compatible, push-pull
Chip Enable input, CMOS level, active high, internal 150 kΩ pull-down resistor
Ground
No Connect
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5 Page 
STCL132K
Typical operating characteristics and scope plots
6 Typical operating characteristics and scope plots
Figure 3. Frequency vs. temperature (STCL132KRxxx)
32.90
32.80
Mean
frequency
(kHz)
32.70
32.60
32.50
32.40
32.30
–40
–20
0 20 40 60 80 100 120 140
Temperature (˚C)
VCC = 1.65 V
VCC = 1.8 V
VCC = 1.95 V
AI14577
Figure 4. Duty cycle vs. temperature (STCL132KRxxx)
53
52
Mean
duty
www.DataSheet4cUyc.cleom(%)
51
50
49
48
47
–40
–20
0 20 40 60 80 100
Temperature (˚C)
VCC = 1.65 V
VCC = 1.8 V
VCC = 1.95 V
120 140
AI14578
11/20
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet STCL132K.PDF ] | |
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