STM86312 STMicroelectronics, STM86312 Datasheet - Page 5

• Manufacturer Part Number: STM86312
• Description: IC DRIVER/CONTROLLER VFD 44PQFP
• Manufacturer: STMicroelectronics

Specifications of STM86312

• Display Type: Vacuum Fluorescent (VF)
• Configuration: 16 Segments
• Interface: Serial
• Digits Or Characters: 4 Digits
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 44-MQFP, 44-PQFP
• Driver Type: VFD Drivers
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Maximum Output Current: 25 mA
• Minimum Operating Temperature: - 40 C
• For Use With: 497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: No
• Other names: 497-4363

STM86312
2.2
Pin description
Table 1. Pin description
10, 11, 12, 13
39, 40, 41, 42
15, 16, 17,
21, 22, 23,
26, 28, 29,
32, 33, 34,
18, 19, 20
35, 36, 37
1, 2, 3, 4
14, 38
24, 25
30, 31
Pin N°
7, 43
27
44
5
6
8
9
SEG12/GRID11 to
GRID1 to GRID6 Grid output pins.
SEG7 to SEG11
SEG16/GRID7
LED1 to LED4
KEY1, KEY2,
SEG1/KS1 to
KEY3, KEY4
SW1, SW2,
SW3, SW4
SEG6/KS6
Symbol
D
OSC
CLK
STB
V
V
V
D
OUT
DD
SS
EE
IN
General-purpose switch inputs.
Output serial data at falling edge of the shift clock, starting
from lower bit. This is N-ch open-drain output pin.
Input serial data at rising edge of the shift clock, starting from
lower bit.
Reads serial data at rising edge, and outputs data at falling
edge.
Initializes serial interface at rising or falling edge to make
STM86312 waiting for reception of command. Data input after
STB has fallen are processed as a command. While command
data are processed, current processing is stopped, and the
serial interface is initialized. While STB is high, CLK is ignored.
Input data to these pins are latched at end of the display cycle.
5V ± 10%.
Segment output pins (Dual function as key source).
Segment output pins.
These pins are selectable for segment or grid driving.
CMOS outputs. +20 mA max.
Connect this pin to system GND.
Pull-down level. V
Connect to an external resistor.
DD
Name and function
- 35V max.
Pin settings
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