Operating Supply Voltage
:
Maximum Operating Temperature
: + 85 C
Mounting Style
: SMD/SMT
Driver Type
: VFD Drivers
Packaging
: Tray
Package / Case
: PQFP-44
Features: MANY DISPLAY MODES (11 SEGMENTS & 11 DIGITS TO 16 SEGMENTS & 4 DIGITS)
KEY SCANNING (6 x 4 MATRIX)
DIMMING CIRCUIT (EIGHT STEPS)
HIGH-VOLTAGE OUTPUT (VDD 35V MAX)
LED PORTS (4 CHS, 20mA MAX)
GENERAL PURPOSE INPUT PORT (4 bits)
NO EXTERNAL RESISTOR NECESSARY FOR DRIVER OUTPUT (P-CH OPEN DRAIN + PULL DOWN RESISTOR OUTPUT)
SERIAL INTERFACE (CLK, STB, DIN, DOUT)
Pinout
Specifications
| Symbol |
Parameter |
Value |
Unit |
| VDD |
Logic Supply Voltage |
-0.5 to 7 |
V |
| VEE |
Driver Supply Voltage |
VDD+0.5 to VDD-40 |
V |
| VI |
Logic Input Voltage |
-0.5 to VDD+0.5 |
V |
| VO2 |
VFD Driver Output Voltage |
VEE-0.5 to VDD+0.5 |
V |
| IO1 |
LED Driver Output Current |
25 |
mA |
| IO2 |
VFD Driver Output Current
|
-40 (Grid) |
mA |
|
-15 (Segment) |
| TA |
Operating Ambient Temperature |
-40 to 85 |
|
DescriptionThe STM86312 is a VFD (Vacuum Fluorescent Display) controller/driver that is driven on a 1/4 to 1/11-duty factor. It consists of 11-segments output lines, 6 grid output lines, 5 segments/grid output drive lines, a display memory, a control circuit, and a key scan circuit. Serial data are input to the STM86312 through a three-line serial interface.This VFD controller/driver is ideal as a peripheral device for a single-chip microcomputer.
Parameters: | Technical/Catalog Information | STM86312 |
| Vendor | STMicroelectronics |
| Category | Integrated Circuits (ICs) |
| Package / Case | 44-PQFP |
| Digits or Characters | 4 Digits |
| Configuration | 16 Segments |
| Display Type | Vacuum Fluorescent (VF) |
| Interface | Serial |
| Packaging | Tray |
| Current - Supply | - |
| Voltage - Supply | 4.5 V ~ 5.5 V |
| Operating Temperature | -40°C ~ 85°C |
| Lead Free Status | Contains Lead |
| RoHS Status | RoHS Non-Compliant |
| Other Names | STM86312
STM86312
497 4363 ND
4974363ND
497-4363
|
STM86312 Data Sheet
