** Datasheet Download **
SFTO177JY-7189AN
Specification.pdf
About this item: Lowest price guarantee 1.77 inch TFT LCD
The 1.77-inch TFT LCD meets the market's demand for
miniaturization, low power consumption, and high-definition
displays with its moderate size and high performance. It has
obvious market advantages in portable electronic devices and other
fields, while also demonstrating its unique value in professional
fields such as industry and healthcare. In the industrial field,
1.77-inch TFT LCD is commonly used to display the operating status
and parameters of instruments, such as temperature and humidity
meters, pressure gauges, etc. This display screen can also be used
as an interface for automation control systems, providing real-time
data monitoring and operational feedback.
The commonly used driver chip is ST7735S, which supports SPI
interface and is easy to integrate into various systems. The
product brightness can reach 300cd/m ², suitable for different
indoor and outdoor lighting conditions. Usually equipped with 2 LED
lights to provide uniform backlight effect.
Our company has an absolute cost advantage in this type of product
and guarantees to provide customers with high-quality products at
the lowest prices in the industry.
Features
| Item | Specification | Unit |
| Display Mode | Normally Black, Transmissive | / |
| Viewing Direction | 12 o'clock | / |
| Colors | 262K | / |
| Drive IC | ST7735 | / |
| Interface Type | 4 Line SPI | / |
| Dimensional Outline | 34.00(W) x 42.94(H) x 2.28(T) | mm |
| LCD Active Area | 28.032(W) x 35.04(H) | mm |
| Resolution | 128 RGB(H) x 160(V) | pixels |
| Pixel Pitch | 0.219(W) x 0.219(H) | mm |
Outline Drawing
Interface Pin Description
Pin.No | Symbol | Description |
| 1 | NC | No connection |
| 2 | GND | Ground |
| 3 | LEDK | Cathode of Backlight |
| 4 | LEDA | Anode of Backlight (3.0V-3.4V) |
| 5 | GND | Ground |
| 6 | RESET | LCM Reset pin |
7 |
D/C | Register select pin D/C=’ 1’ : Display data. D/C=’0’ : Command data. |
| 8 | SDA | Serial data input / output. |
| 9 | SCL | Serial clock pin. |
| 10 | VCC | Power supply for Analog(2.8V-3.3V) |
| 11 | IOVCC | Power supply for interface( 1.8V-3.3V) |
| 12 | CS | Chip select pin(“Low” enable) |
| 13 | GND | Ground |
| 14 | NC | No connection |
Schematic Diagram
Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit |
| Logic Supply Voltage | IOVCC | -0.3 | 4.6 | V |
| Analog Supply Voltage | VCC | -0.3 | 4.6 | V |
| Operating temperature | Top | -20 | 70 | ℃ |
| Storage temperature | Tst | -30 | 80 | ℃ |
| Humidity | RH | -- | 90%(Max60C) | RH |
Electrical Characteristics
| Parameter | Symbol | Min | Typ | Max | Unit |
| Logic Supply Voltage | IOVCC | 1.65 | 1.8/2.8 | 3.3 | V |
| Analog Supply Voltage | VCC | 2.6 | 2.8 | 3.3 | -- |
| Input Current | Idd | -- | 20 | -- | mA |
Backlight Characteristics
| Item | Symbol | Min | Typ | Max | Unit |
| Forward Voltage | Vf | 3.0 | 3.2 | 3.4 | V |
| Forward Current | If | -- | 80 | -- | mA |
| Operating Life Time | -- | -- | 40000 | -- | Hrs |
Optical Characteristics
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit |
| Response time | Tr+Tf | θ = 0° | - | 30 | 60 | ms |
| Contrast ratio | CR | θ = 0° | 200 | 300 | - | |
Viewing angle | Top | CR≧10 | 40 | 45 | - | deg. |
| Bottom | CR≧10 | 15 | 20 | - |
| Left | CR≧10 | 40 | 45 | - |
| Right | CR≧10 | 40 | 45 | - |
CF Color chromaticity(CIE)
| Wx |
θ = 0° |
-0.02 | 0.308 |
+0.02 | |
| Wy | 0.327 |
| Rx | 0.610 |
| Ry | 0.329 |
| Gx | 0.299 |
| Gy | 0.567 |
| Bx | 0.143 |
| By | 0.111 |
| Cross talk | ct | | | | 2% | |
| Transmittance | Trans | | 6.21% | 6.9% | - | |
Product Photo
Environmental / Reliability Tests
| No | Test Item | Condition | Remarks |
| 1 | High Temperature Operation | Ts= +80℃ , 240hrs | Note 1 IEC60068-2-2, GB2423. 2-89 |
| 2 | Low Temperature Operation | Ta= -30℃ , 240hrs | Note 2 IEC60068-2-1 GB2423.1-89 |
| 3 | High Temperature Storage | Ta= +80℃ , 240hrs | IEC60068-2-2 GB2423. 2-89 |
| 4 | Low Temperature Storage | Ta= -30℃ , 240hrs | IEC60068-2-1 GB/T2423.1-89 |
| 5 | High Temperature & Humidity Storage | Ta= +60℃ , 90% RH max, 160 hours | IEC60068-2-3 GB/T2423.3-2006 |
| 6 | Thermal Shock (Non-operation) | -30℃ 30 min ~ +80℃ 30 min Change time: 5min, 30 Cycle | Start with cold temperature, end with high temperature IEC60068-2-14, GB2423.22-87 |
7 | Electro Static Discharge (Operation) | C=150pF, R=330 Ω , 5 points/panel Air:±8KV, 5 times; Contact: ±4KV, 5 times; (Environment: 15℃ ~ 35℃ , 30% ~ 60%, 86Kpa ~ 106Kpa) | IEC61000-4-2 GB/T17626.2-1998 |
8 |
Vibration (Non-operation) | Frequency range: 10~55Hz, Stroke: 1.mm Sweep: 10Hz~55Hz~10Hz 2 hours for each direction of X .Y. Z. (package condition) | IEC60068-2-6 GB/T2423.5-1995 |
| 9 | Shock (Non-operation) | 60G 6ms, ± X, ±Y , ± Z 3 times for each direction | IEC60068-2-27 GB/T2423.5-1995 |
| 10 | Package Drop Test | Height: 80 cm, 1 corner, 3 edges, 6 surfaces | IEC60068-2-32 GB/T2423.8-1995 |
Facilities and Certificates
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