STFPC311(2012) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

STFPC311
(Rev.:2012)

Front panel controller/driver with standby power management

STMicroelectronics 

STFPC311

Front panel controller/driver with standby power management

Datasheet − not recommended for new design

Features

■ IC front panel controller/driver

■ Timing power standby management controller

■ IC power supply from 3.3V (VDD) to –30V (VSS)

t(s) ■ Integrated VFD driver and controller

c ■ Infrared (IR) Remote Control (RC) Decoder

u (Philips or NEC format)

rod ■ Drives many display modes (12 segments/16

digits to 20 segments/8 digits)

P ■ High voltage outputs (VDD - 33.3V max)

lete ■ No external resistors necessary for driver

outputs (P-channel open-drain with pull-down

so resistor outputs)

b ■ Key scanning (up to 12mm x 2mm matrix)

- O ■ LED ports (4 channels, 20mA, max)

t(s) ■ Serial interface (STB, CLK, DIN, and DOUT)

communication protocol

c ■ Dimming circuit (adjustable up to 8 steps)

du ■ Supports auto-increment of display digit, which

ro lightens the load on the MCU

P ■ Programmable 8 hot keys for the IR remote

te control command

le ■ Programmable 8 hot keys for key scan

o command

bs ■ Low power consumption in standby mode

O■ 2 general-purpose input ports (SW1, SW2)

PQFP-52

Description

The STFPC311 is a complete, low-cost,

integrated solution for controlling and driving a

front panel Vacuum Fluorescent Display (VFD). It

is ideal for decreasing power consumption in

standby mode by reducing the application standby

current to a minimum. It also contains a built-in

remote control decoder module.

While in standby mode of operation, a valid key

press or signal from the infrared decoder will start

a proper power-up (see Figure 6 on page 13).

The STFPC311 integrates a VFD controller with a

driver that is run on a 1/8 to 1/16-duty factor. It

consists of 12 segment output lines, 8 grid output

lines, 8 shared segments/grid output drive lines, a

display memory, a control circuit, and a key scan

circuit. Serial data is input to the STFPC311

through the SPI interface of a microcontroller

(STB, DIN, DOUT, and CLK).

Additionally, this IC can support two general-

purpose input switches (SW1 and SW2).

Applications

■ Available in PQFP-52 package

■ DVD players

■ VCD players

■ AV equipment like Home Stereo

■ POS Systems

Table 1.

Device summary

Part number

STFPC311

Temperature range

-40°C to 85°C

Package

PQFP-52

September 2012

Doc ID 12324 Rev 2

This is information on a product still in production but not recommended for new designs.

1/39

www.st.com

39

Share Link: