STFPC311 STMicroelectronics, STFPC311 Datasheet - Page 20

• Manufacturer Part Number: STFPC311
• Description: IC CTRLR/DRVR FRONT PANEL 52PQFP
• Manufacturer: STMicroelectronics

Specifications of STFPC311

• 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
• 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: No

6 Commands
6.3
6.4
Figure 17. STFPC311 Display control and hot key setting command order
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When the application is powered-up, the normal operation mode and address increment mode
is set with the default display memory address set to 00H. In the auto-increment address mode,
the address command is sent once, followed by the data bytes.
Alternatively, the data command can be sent, followed by the data bytes. In this case, when new
display data is to be written, the last value of the address will be used and then incremented.
Upon reaching the last display memory address, the address jumps to 00H.
For fixed address mode, the address command has to be sent, followed by the display data.
When next byte of data is to be written, the address command has to be sent again before the
new display data byte.
For RC-5 data reception (after the photodiode), a binary 1 is represented by a high-to-low
transition, and a binary 0 is represented by a low-to-high transition. For RC-6 (Mode 0) data
reception, a binary 1 is represented by a low-to-high transition, and a binary 0 is represented by
a high-to-low transition. Whenever Bit 5 is a ‘1’, the watchdog timer is reset.
Address setting command
This command sets an address of the display memory. If address 30H or higher is set, the data
is ignored until a correct address is set.
Figure 16. STFPC311 Address Setting Command Order
Display control and hotkey setting command
When the application is powered-up, the 1/16-pulse width is set and the display is turned OFF.
See
Figure 17
and
Figure
4. All hot keys are disabled.
STFPC311