S1V3S344A00A600 Epson, S1V3S344A00A600 Datasheet - Page 28

• Manufacturer Part Number: S1V3S344A00A600
• Description: Telecom Voice Conditioning ICs Voice Guidance IC FLASH
• Manufacturer: Epson

Specifications of S1V3S344A00A600

• Application: Voice Guidance
• Supply Voltage (max): 5 V
• Supply Voltage (min): 3.3 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Supply Current: 0.2 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7. External Connection Examples
7. External Connection Examples
7.1 System Clock
The S1V3S344 system clock frequency can be set to either 32.768 kHz or 12.288 MHz. Likewise, the clock
source can be set to either direct input (input from CLKI pin) or oscillator (connected to OSCI/OSCO pin). The
oscillator, however, can be used with 32.768 kHz only. External connection examples are shown below for
various clock supply configurations.
7.1.1
Direct Input
Figure 7.1 shows an example of an external connection in which the clock signal input to the CLKI pin is used as
the clock source.
S1V3S344
Figure 7.1 System clock external connection example (CLKI pin)
The CLKI pin receives 32.768 kHz or 12.288 MHz clock signal input generated by an oscillator.
The CLKSEL pin should be set to Low level for 32.768 kHz and to High level for 12.288 MHz.
The OSCEN pin should be set to Low level.
The OSCI pin should be set to Low level.
The OSCO pin should not be connected.
Note that the asynchronous serial interface (UART) is not available if the system clock frequency is set to 12.288
MHz.
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S1V3S344 Hardware Specification
EPSON
(Rev. 1.00)