W40S11-23G Cypress Semiconductor Corp, W40S11-23G Datasheet - Page 5

• Manufacturer Part Number: W40S11-23G
• Manufacturer: Cypress Semiconductor Corp

Specifications of W40S11-23G

• Number Of Outputs: 13
• Operating Supply Voltage (max): 3.47V
• Operating Temp Range: 0C to 70C
• Operating Supply Voltage (min): 3.14V
• Mounting: Surface Mount
• Pin Count: 28
• Operating Supply Voltage (typ): 3.3V
• Package Type: SOIC
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Not Compliant

Signaling Requirements
As shown in Figure 2, valid data bits are defined as stable logic
0 or 1 condition on the data line during a clock HIGH (logic 1)
pulse. A transitioning data line during a clock HIGH pulse may
be interpreted as a start or stop pulse (it will be interpreted as
a start or stop pulse if the start/stop timing parameters are
met).
SCLOCK
SDATA
SCLOCK
SDATA
Start
Bit
Figure 3. Serial Data Bus Start and Stop Bit
Figure 2. Serial Data Bus Valid Data Bit
Valid
Data
Bit
of Data Allowed
Change
5
A write sequence is initiated by a “start bit” as shown in Figure
3. A “stop bit” signifies that a transmission has ended.
As stated previously, the W40S11-23 sends an “acknowledge”
pulse after receiving eight data bits in each byte as shown in
Figure 4.
Stop
Bit
W40S11-23
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