STFPC311BTR STMicroelectronics, STFPC311BTR Datasheet - Page 4

• Manufacturer Part Number: STFPC311BTR
• Description: IC CTRL/DRIVER FRONT PNL 52-PQFP
• Manufacturer: STMicroelectronics

Specifications of STFPC311BTR

• 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
• Maximum Operating Temperature: + 85 C
• Maximum Clock Frequency: 1 MHz
• Maximum Output Current: 25 mA
• Maximum Power Dissipation: 1200 mA
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• 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: Details
• Other names: 497-6107-2

1 Functional description
1
1.1
Figure 1.
4/39
V
V
V
DD
DD
DD
D
D
D
SW1
SW1
SW1
SW2
SW2
SW2
KEY1
KEY1
KEY1
KEY2
KEY2
KEY2
D
D
D
R
R
R
OUT
OUT
OUT
CLK
CLK
CLK
STB
STB
STB
IN
IN
IN
OSC
OSC
OSC
Functional description
The STFPC311 receives serial data from the microcontroller through the SPI interface, latches
the data, and then masks the inputs from the MCU. This data consists of commands followed
by data. There are 4 types of commands:
●
●
●
●
The STFPC311 integrates the supply standby power management functionality, remote control
decoder, and a 28-bit VFD driver. Microcontrollers usually run the first two tasks.
This device reduces the stand-by power consumption of the whole Front Panel application as
well as the hardware by integrating the infrared (IR) remote control decoder.
A dedicated supply voltage powers the STFPC311 directly from the main supply board. When
power is plugged in, control of the power supply management is done using the following pins:
1.
2.
3.
Block diagram
Block diagram
configuration,
data,
address, and
display.
IR_DATA_IN, and
STBY,
READY.
READY/STBY_n
READY/STBY_n
READY/STBY_n
2
2
2
Latch
Latch
Latch
2-bit
2-bit
2-bit
Serial
Serial
Serial
IR_DATA_IN
IR_DATA_IN
IR_DATA_IN
OSC
OSC
OSC
SPI
SPI
SPI
I/F
I/F
I/F
2
2
2
Command Decoder
Command Decoder
Command Decoder
Key Data Memory
Key Data Memory
Key Data Memory
Timing Generator
Timing Generator
Timing Generator
Dimming Circuit
Dimming Circuit
Dimming Circuit
Display Memory
Display Memory
Display Memory
Decoder & Stand
Decoder & Stand
Decoder & Stand
Remote Control
Remote Control
Remote Control
Key Scan and
Key Scan and
Key Scan and
By Function
By Function
By Function
(20 x 16)
(20 x 16)
(20 x 16)
(2 x 12)
(2 x 12)
(2 x 12)
Latch
Latch
Latch
4-bit
4-bit
4-bit
LED1
LED1
LED1
LED2
LED2
LED2
LED3
LED3
LED3
LED4
LED4
LED4
(+3.3V)
(+3.3V)
(+3.3V)
V
V
V
Register
Register
Register
STBY
STBY
STBY
MUTE
MUTE
MUTE
Output
Output
Output
DD
DD
DD
20-bit
20-bit
20-bit
16-bit
16-bit
16-bit
Latch
Latch
Latch
Shift
Shift
Shift
GND
GND
GND
(0V)
(0V)
(0V)
(-30V)
(-30V)
(-30V)
20
20
20
16
16
16
V
V
V
Selector
Selector
Selector
SS
SS
SS
Data
Data
Data
Watchdog
Watchdog
Watchdog
Timer
Timer
Timer
8
8
8
8
8
8
12
12
12
8
8
8
8
8
8
SEG1/KS1
SEG1/KS1
SEG1/KS1
SEG12/KS2
SEG12/KS2
SEG12/KS2
SEG13/GRID16
SEG13/GRID16
SEG20/GRID9
SEG20/GRID9
SEG20/GRID9
GRID8
GRID8
GRID8
GRID1
GRID1
GRID1
STFPC311