STFPC311 STMicroelectronics, STFPC311 Datasheet - Page 17

• 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

STFPC311
5
5.1
5.2
Data
LED Port
Data is written to the LED port by a WRITE command, starting from the least significant bit of
the port see
when the bit is set to a 1, the LED turns off. The data of Bits 5 through 8 are ignored. Upon first
power-up, all of the LEDs are turned off.
Figure 12. LED port data WRITE command order
SW Data
The SW data are read by the appropriate READ command, starting from the least significant bit
see
Figure 13. SW data READ Command order
Figure 13.
Figure 12.
Bits 3 through 8 of the SW data are 0.
When a bit of this port is set to 0, the corresponding LED lights up;
5 Data
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