1.77-inch TFT LCD with 4-Wire Resistive Touch Screen | 128x160 SPI Interface | ILI9163C Driver | Compact Embedded Display
Compact, Cost-Effective Touch Display Solution for Embedded & Industrial Applications
Saef Technology Limited presents the SF-TC177T-9159B-N, a reliable 1.77-inch TFT LCD module designed for applications where space, cost, and touch functionality are key. Featuring a 128x160 resolution, integrated 4-wire resistive touch panel, and an SPI interface driven by the ILI9163C IC, this module is ideal for handheld devices, industrial controls, portable instruments, and consumer electronics interfaces.
Engineered for Simplicity & Durability:
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Integrated Resistive Touch: With 1,000,000+ touch cycles and linearity within ±1.5%, this RTP offers reliable input in environments where capacitive touch may not be suitable, such as gloved operation or dusty conditions.
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SPI Interface for Easy Integration: Minimizes pin count and simplifies PCB layout, making it compatible with a wide range of microcontrollers and reducing system complexity.
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Compact Footprint: Measuring only 34.0mm × 43.70mm × 2.4mm, this display is ideal for space-constrained designs without sacrificing functionality.
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Wide Operating Temperature Range: Certified for -20°C to +70°C operation, ensuring stable performance in varying environmental conditions.
Technical Specifications for Design Validation:
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Active Area: Approx. 28.03mm × 35.04mm (calculated based on typical pixel pitch)
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Power Supply: VDD = 2.6V–3.3V, VDDIO = 2.8V/1.8V
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Backlight: White LED, 3.0V–3.4V forward voltage (30mA drive)
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Touch Panel Ratings: X-axis resistance 150–500Ω, Y-axis 200–800Ω; operating voltage ≤7V DC
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Compliance: Designed to meet industrial reliability standards with testing for high/low temperature, humidity, thermal shock, and vibration resistance
Why Choose Saef for Your Display Solution?
While this module comes standard with a resistive touch panel, Saef offers free semi-customization to adapt the display to your exact needs:
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Touch Panel Upgrades: Switch to capacitive touch (PCT) with I²C/SPI interface.
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Interface Flexibility: Modify to RGB or parallel interfaces based on your MCU selection.
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Optical Customization: Adjust brightness, contrast, or viewing angle characteristics.
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Mechanical Tailoring: Customize outline dimensions, FPC length, or mounting options.
Ideal For:
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Handheld industrial terminals
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Portable medical monitoring devices
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Smart home control panels
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Automotive aftermarket displays
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Consumer electronics interfaces
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IoT device dashboards
Built to Integrate, Designed to Perform.
At Saef, we partner with engineers through the design cycle—offering samples, technical support, and customization to ensure your display integrates seamlessly and performs reliably in your application.
Mechanical Outline Dimensions
Interface Pin Definition
| NO. | PIN NAME | I/O | Description |
| 1 | VSS | I | Ground |
| 2 | LED- | O | LED Cathode |
| 3 | LED+ | O | LED Anode |
| 4 | VSS | I | Ground |
| 5 | RESET | I | LCM Reset input signal |
| 6 | A0 | I | Register select signal |
| 7 | SDA | I | Display Data input signal |
| 8 | SCK | I | Display Clock input signal |
| 9 | VDD | I | Power Supply 2.8V Voltage |
| 10 | VDDIO | I | Power Supply 2.8V/ 1.8V Voltage |
| 11 | CS | I | Input pin for chip selection signal |
| 12 | VSS | I | Ground |
| 13 | YD | I | Touch Panel input signal |
| 14 | XL | I | Touch Panel input signal |
| 15 | YU | I | Touch Panel input signal |
| 16 | XR | I | Touch Panel input signal |
| 17 | VSS | I | Ground |
| 18 | VSS | I | Ground |
Maximum Absolute Limit
| Item | Symbol | Value | Unit |
| Power supply voltage for logic | VDD | 1.6~3.3 | V |
| Input voltage | Vin | VDD+0.3 | V |
| Operating temperature | Topr | -20 to 70 | °C |
| Storage temperature | Tstg | -30 to 80 | °C |
DC Characteristics
| Item | Symbol | Min | Type | Max | Unit | Test condition |
|
Operating voltage |
VDD | 2.6 | 2.8 | 3.3 | V | - |
| Supply current | IDD | - | - | 5 | mA | VDD=2.8V,Ta=25.C |
| Input voltage | VIH | 0.8VDD | - | VDD | V |
- |
| VIL | 0 | - | 0.2VDD | V | ||
|
Input leakage current |
IIL | -1.0 | - | 1.0 | μA | VIN=VDD or VSS |
Backlight Electrical-optical Characteristics
| Item | Symbol | MIN | TYP | MAX | UNIT |
Test Condition |
| Supply Voltage | Vf | 3.0 | 3.2 | 3.4 | V | If=30 mA |
| Supply Current | If | - | 30 | - | mA | - |
| Reverse Voltage | Vr | - | - | 5 | V | - |
| Power dissipation | Pd | - | 288 | - | mW | - |
| Luminous Intensity for LCM |
- |
- | 250 | - | Cd/m2 | If=30mA |
| Uniformity for LCM | - | 80 | - | - | % | If=30 mA |
| Backlight Color | White | |||||
Optical Characteristics
| No. | ITEM | Symbol | Conditions | Specification | Unit | |||
| Min | Typ | Max | ||||||
| 1 | Response Time | Tr+Tf | 25℃ |
- |
15 |
- |
Ms | |
| 2 | Transmittance (With PL) | T(%) | - | - | 7. 1 | - | - | |
|
3 |
Contrast Rate |
Cr |
θ=0, Normal viewing angle |
- |
250 |
- |
- |
|
|
4 |
Viewing Angle |
Hor. | θR |
CR>10 |
- | 45 | - |
Deg |
| θL | - | 45 | - | |||||
| Ver. | Θ+ | - | 35 | - | ||||
| Θ- | - | 15 | - | |||||
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.