STFPC320 datasheet(1/78 Pages) STMICROELECTRONICS

部件名	STFPC320

功能描述	Front panel controller/driver with standby power management and real-time clock

PDF	78 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 78 page

July 2008

Rev 2

1/78

78

STFPC320

Front panel controller/driver with standby

power management and real-time clock

Features

■ IC front panel VFD controller driver

■ Standby power management to the host

■ 3.3 V (VDD) and down to -30 V (VSS)

supply for the IC

■ IR remote control decoder

(Philips, NEC, Thomson, Sony, Matsushita)

■ Multiple display modes

(12 seg. and 16 digits to 20 seg and 8 digits)

■ High voltage outputs (VDD - 33.3 V max)

■ No additional external resistors required for

driver outputs (P-CH. open drain + pull-down

resistor outputs)

■ Key scanning (up to 12 x 2 matrix = 24 keys)

■ LED ports (4 channels 20 mA max each)

■ Serial I2C interface (SCL, SDA)

communication protocol b

■ Operating speed: up to 400 kHz for I2C

■ Programmable hotkeys for IR remote control

command and KEYSCAN command

■ Low power consumption in standby mode

■ Dimming circuit (8 steps)

■ Real-time clock (accuracy ± 25 secs/month)

■ Wake-up alarm

■ Internal oscillator with external crystal for RTC

■ Available in PQFP-52 package (0.65 mm pitch

Applications

■ VCR, DVD and personal video recorders

■ Home theatre with clock feature, STB and HTiB

(home theater in a box)

Description

The STFPC320 is designed to integrate the VFD

driving, key-scan matrix, LED driving, infrared (IR)

remote control decoding and real-time clock

(RTC) into one integrated solution. All the

functions are programmable using the I2C bus.

Low power consumption is achieved during

standby operation. The STFPC320 provides the

standby power management to the main chipset.

The STFPC320 is housed in a 52-pin PQFP

package. The pin assignments and application

circuit are optimized for an easy PCB layout and

cost saving advantages.

PQFP-52

Table 1.

Device summary

Order code

Operating temperature

Package

Packaging

STFPC320

-40°C to 85°C

PQFP-52

Tape and reel

www.st.com

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制造商	部件名	数据表	功能描述
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