S1V3S344A00A600 Epson, S1V3S344A00A600 Datasheet - Page 31

• 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

7.2.2
When using an asynchronous serial interface (UART), the SHISEL0 input pin should be set to High level and
SHISEL1 should be set to Low level. Note that the UART interface is not available when the system clock
frequency is 12.288 MHz.
The initial interface settings are as shown below.
The interface settings can be changed using the ISC_UART_CONFIG_REQ message. Interface settings set via
this message will be maintained until a hardware reset. A hardware reset restores interface settings to the initial
default values shown above. The ISC_UART_CONFIG_REQ message can be used if necessary. For additional
information, refer to S1V3034x Series Message Protocol Specification.
MSGRDY is an output signal indicating that a command to be sent from the S1V3S344 is ready to be sent. For
more information on the data receiving flow on the host side and the MSGRDY output timing, refer to S1V3034x
Series Message Protocol Specification.
STBYEXIT is an input signal used to implement recovery from standby mode to normal operating mode. For
more information on the STBYEXIT input timing, refer to S1V3034x Series Message Protocol Specification.
S1V3S344 Hardware Specification
(Rev. 1.00)
Start bit length: 1 bit
Stop bit length: 1 bit
Parity bit: None
Baud rate: 9.6 kbps
Asynchronous (UART)
Figure 7.4 Serial interface external connection example (asynchronous)
External Interrupt Port
Serial Data Out
Host
Serial Data In
I/O Port
HVDD
HVDD
EPSON
VSS
VSS
7. External Connection Examples
SCKS/SCL
SOS/TXD
SIS/RXD/SDA
NSCSS
MSGRDY
STBYEXIT
SHISEL0
SHISEL1
S1V3S344
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