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PDF S-35730 Data sheet ( Hoja de datos )
| Número de pieza | S-35730 | |
| Descripción | CMOS timer IC | |
| Fabricantes | Seiko | |
| Logotipo |  |
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S-35730 Series
FOR AUTOMOTIVE 125°C OPERATION CLOCK PULSE OUTPUT
WITH FREQUENCY SETTING PIN
www.sii-ic.com
CONVENIENCE TIMER
© SII Semiconductor Corporation, 2016
Rev.1.0_00
The convenience timer is a CMOS timer IC which operates with low current consumption, and is suitable for the time
management of the relative time.
The S-35730 Series outputs the clock pulse.
4 types of clock pulse frequency can be selected from 1 Hz to 32.768 kHz depending on the SET0 pin and the SET1 pin
settings.
Caution This product can be used in vehicle equipment and in-vehicle equipment. Before using the product in the
purpose, contact to SII Semiconductor Corporation is indispensable.
Features
• Clock pulse output function:
Settable clock pulse frequency, with an output control pin
• Low current consumption:
0.7 μA typ. (Crystal oscillator: CL = 6.0 pF, VDD = 3.0 V, ENBL pin = "H", Ta = +25°C,
FOUT pin = Nch open-drain output)
• Wide range of operation voltage:
1.8 V to 5.5 V
• Built-in 32.768 kHz crystal oscillation circuit
• Operation temperature range:
Ta = −40°C to +125°C
• Lead-free (Sn 100%), halogen-free
• AEC-Q100 in process*1
*1. Contact our sales office for details.
Applications
• Intermittent operation of various systems
• Regular status monitoring of various systems
Package
• TMSOP-8
1
1 page  
FOR AUTOMOTIVE 125°C OPERATION CLOCK PULSE OUTPUT WITH FREQUENCY SETTING PIN CONVENIENCE TIMER
Rev.1.0_00
S-35730 Series
Pin Functions
1. SET0, SET1 (Input for clock pulse frequency setting) pins
These pins input the clock pulse frequency setting signals.
4 types of clock pulse frequency can be selected depending on the pin settings. Regarding the combination, refer to
"1. Options of clock pulse frequency" in " FOUT Pin Clock Pulse Output".
2. ENBL (Input for clock pulse output control) pin
This pin controls the clock pulse output from the FOUT pin. The clock pulse is output from the FOUT pin when the
ENBL pin is "H". The FOUT pin is fixed when the ENBL pin is "L".
3. FOUT (Output for clock pulse) pin
This pin outputs the clock pulse. Regarding the operation of the clock pulse output, refer to "2.
pulse output of FOUT pin " in " FOUT Pin Clock Pulse Output".
Also, the FOUT pin output form of Nch open-drain output / CMOS output can be selected.
ENBL pin and clock
4. XIN, XOUT (Connection for crystal oscillator) pins
Connect a crystal oscillator between the XIN pin and the XOUT pin.
5. VDD (Positive power supply) pin
Connect this pin with a positive power supply. Regarding the values of voltage to be applied, refer to
" Recommended Operation Conditions".
6. VSS pin
Connect this pin to GND.
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5 Page 
FOR AUTOMOTIVE 125°C OPERATION CLOCK PULSE OUTPUT WITH FREQUENCY SETTING PIN CONVENIENCE TIMER
Rev.1.0_00
S-35730 Series
2. When power supply voltage is raised at ENBL pin = "H"
Set the ENBL pin to "L" after the power supply voltage reaches 1.8 V or higher. If the ENBL pin is set to "L" for 500 ms
or longer, the oscillation start signal becomes "H", and the crystal oscillation circuit normally oscillates. After that, if the
ENBL pin is set to "H", the oscillation start signal becomes "L" within 500 ms, and the oscillation status is maintained.
10 ms
1.8 V
(Operation power supply voltage min.)
0.2 V or lower
0 *1
ENBL pin input
Oscillation start signal
Oscillation start signal
"H" "L"
within 500 ms
Crystal oscillation
circuit output
*1. 0 V means that there is no potential difference between the VDD pin and the VSS pin of the S-35730 Series.
Figure 11 When Power Supply Voltage is Raised at ENBL Pin = "H"
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet S-35730.PDF ] | |
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