For guaranteed performance, the TSC-407 datasheet provides a narrower window:
The most referenced page of the TSC-407 datasheet is the pin configuration diagram. For a typical 16-pin SOIC package:
| Pin | Name | Description | | :--- | :--- | :--- | | 1 | IN1 | Logic control input for switch 1 | | 2 | D1 | Drain (common) terminal of switch 1 | | 3 | S1A | Source terminal A (NO – Normally Open) | | 4 | S1B | Source terminal B (NC – Normally Closed) | | 5 | GND | Ground (0V) | | 6 | S4B | Source terminal B of switch 4 | | 7 | S4A | Source terminal A of switch 4 | | 8 | D4 | Drain terminal of switch 4 | | 9 | IN4 | Logic control input for switch 4 | | 10 | V- | Negative supply (connect to GND for single supply) | | 11 | IN3 | Logic control input for switch 3 | | 12 | D3 | Drain terminal of switch 3 | | 13 | S3A | Source terminal A of switch 3 | | 14 | S3B | Source terminal B of switch 3 | | 15 | V+ | Positive supply (+2.0V to +5.5V) | | 16 | IN2 | Logic control input for switch 2 |
Truth Table (per switch):
The TSC-407 is a custom or semi-custom Liquid Crystal Display module. It is designed to show information such as numbers (7-segment style), bar graphs, and specific annunciators (icons indicating status like "Battery Low," "Alarm," or units of measurement). Unlike graphic LCDs that use a pixel grid, this is a segment-type display, which makes it highly readable in various lighting conditions and power-efficient.
i2c_start();
i2c_write(DEVICE_ADDR << 1 | I2C_WRITE);
i2c_write(TEMP_REG);
i2c_start(); // repeated start
i2c_write(DEVICE_ADDR << 1 | I2C_READ);
msb = i2c_read_ack();
lsb = i2c_read_nack();
i2c_stop();
temp = convert_raw_to_celsius(msb, lsb);
| Section | What to Look For | Why It Matters | |---------|------------------|----------------| | Absolute Maximum Ratings | Voltage, current, temperature, power dissipation | Exceeding these kills the part. | | Recommended Operating Conditions | Supply voltage, input levels, load range | Ensures reliable function. | | Electrical Characteristics | Thresholds, resistance, timing, leakage | Defines performance limits. | | Pinout & Package | Pin numbering, dimensions, pad layout | Essential for PCB design. | | Application Circuit | Typical connection diagram | Avoids design mistakes. | | Thermal Information | Thermal resistance (RθJA), derating | Prevents overheating. |
Ensure proper PCB land pattern design to avoid stress on the termination joints. Reflow soldering profiles should follow J-STD-020 guidelines for Pb-free assembly.