STFPC320 STMicroelectronics, STFPC320 Datasheet - Page 6

• Manufacturer Part Number: STFPC320
• Description: Front Panel Controller/driver With Standby Power Management And Real-time Clock
• Manufacturer: STMicroelectronics

Device block diagram
1
6/75
Figure 1.
VDD
VDD
SW1
SW1
SW2
SW2
SDA
SDA
SCL
SCL
Key1
Key1
Key2
Key2
R
R
Device block diagram
Block diagram
2
2
Latch
Latch
2-bit
2-bit
OSC
OSC
IR_DATA_IN
IR_DATA_IN
Serial
Serial
I
I
I/F
I/F
READY
READY
2
2
PIN_AV8
PIN_AV8
C
C
oscillator
oscillator
32 KHz
32 KHz
Timing Generator
Timing Generator
Command Decoder
Command Decoder
Dimming Circuit
Dimming Circuit
Key Data Memory
Key Data Memory
Decoder & Stand
Decoder & Stand
Display Memory
Display Memory
Remote Control
Remote Control
Key Scan and
Key Scan and
By Function
By Function
(20 x 16)
(20 x 16)
(2 x 12)
(2 x 12)
Real-time Clock
Real-time Clock
4
4
RTC with Alarm
RTC with Alarm
& Calibration
& Calibration
Calendar
Calendar
Watchdog
Watchdog
Register
Register
MUTE
MUTE
STBY
STBY
Output
Output
20-bit
20-bit
16-bit
16-bit
Latch
Latch
Latch
Latch
Shift
Shift
4-bit
4-bit
Real-time Clock
Real-time Clock
AFE
AFE
20
20
16
16
Selector
Selector
LED1
LED1
LED2
LED2
LED3
LED3
LED4
LED4
Data
Data
8
8
8
8
12
12
8
8
8
8
(+3.3V)
(+3.3V)
VDD
VDD
IRQ_N/SQW
IRQ_N/SQW
GND
GND
(0V)
(0V)
SEG1/KS1
SEG1/KS1
SEG12/KS12
SEG12/KS12
SEG13/GRID16
SEG13/GRID16
SEG20/GRID9
SEG20/GRID9
GRID8
GRID8
GRID1
GRID1
(-30V)
(-30V)
VSS
VSS
STFPC320