ST STFPC320 Manual

Features
■
IC front panel VFD controller driver
■
Standby power management to the host
■ 3.3 V (V ) and down to -30 V (V
DD
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 (V
■
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)
2
■ Serial I C interface (SCL, SDA)
communication protocol b
■
Operating speed: up to 400 kHz for I
■
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)
Table 1. Device summary
Order code
STFPC320
July 2008
Front panel controller/driver with standby
power management and real-time clock
)
SS
- 33.3 V max)
DD
2
C
Operating temperature
-40°C to 85°C
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 I
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.
Package
PQFP-52
Rev 2
STFPC320
PQFP-52
2
C bus.
Packaging
Tape and reel
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