STFPC311BTR STMicroelectronics, STFPC311BTR Datasheet - Page 26

• Manufacturer Part Number: STFPC311BTR
• Description: IC CTRL/DRIVER FRONT PNL 52-PQFP
• Manufacturer: STMicroelectronics

Specifications of STFPC311BTR

• Display Type: Vacuum Fluorescent (VF)
• Interface: Serial
• Current - Supply: 5mA
• Voltage - Supply: 3 V ~ 33.3 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 52-MQFP, 52-PQFP
• Maximum Operating Temperature: + 85 C
• Maximum Clock Frequency: 1 MHz
• Maximum Output Current: 25 mA
• Maximum Power Dissipation: 1200 mA
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• For Use With: 497-8394 - BOARD DEMO STFPC311/ST72264497-6454 - BOARD EVAL BASED ON STFPC311
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Configuration: -
• Digits Or Characters: -
• Lead Free Status / Rohs Status: Details
• Other names: 497-6107-2

9 Remote control protocols
9.2
9.3
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SPI interface IR data transmission
The IR data is sent on the DOUT pin of the SPI interface when the micro controller issues a IR
data read command. The data is sent in 3 bytes with LSB transmitted first as shown in the
Figure below:
The RC data consists of RC address, start bit, toggle bit and the RC command received. The
extra bits are stuffed with 1’s to make it a 3-byte packet. These extra bits at the end of the
packet should be ignored.
Figure 24. RC-6 protocol frame
The RC data consists of RC address, start bit, toggle bit and the RC command received. The
extra bits are stuffed with 1’s to make it a 3-byte packet. These extra bits at the end of the
packet should be ignored.
NEC remote control
This remote control protocol uses pulse distance modulation. Each bit consists of a high level of
fixed time "t", followed by a low level that varies in width. A space that is "t" represents a logic '0'
and a space that is "3t" represents a logic '1'. t = 0.56ms.
The LSB is transmitted first as shown in
Figure 25. Pulse distance modulation.
Figure 25
STFPC311