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128X48 Graphic COG LCD | STN Gray Display With WHITE Backlight/HTG12848A
Product Details:
| Place of Origin: | Dongguan, China |
| Brand Name: | HOTHMI |
| Model Number: | HTG12848A |
Payment & Shipping Terms:
| Minimum Order Quantity: | 2 |
|---|---|
| Delivery Time: | 25 days |
| Payment Terms: | L/C, D/A, T/T, D/P, Western Union, MoneyGram |
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Detail Information |
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| Product Type: | COG | Show Contents: | 128x48 |
|---|---|---|---|
| Outline Size(mm): | 81.1x38.3x4.9 | Size Of View Window(mm): | 75.3x28.3 |
| Display Size(mm): | 66.52x24.92 | Point Spacing(mm): | 0.52x0.52 |
| Visual Angle: | 6H | Connection PIN Number: | FPC-28PIN |
| Interface Mode: | MCU/8bit | Working Temperature: | -20~70℃ |
| Power Supply Voltage: | 3.3v | ||
Product Description
128X48 Graphic COG LCD | STN Gray Display With WHITE Backlight/HTG12848A
HTG12848A | Monochrome Graphic COG | 128x48 Pixels | Reflective LCD | WHITE Backlight | STN (+) Positive Gray Display
HOTLCD 128x48 graphic Chip-On-Glass (COG) Liquid Crystal Display shows dark pixels on a gray background. This reflective LCD Display is visible with high ambient light while offering a wide operating temperature range from -20 to 70 degrees Celsius. This HTG12848A display has an optimal view of 6:00. This display operates at 3.3V supply voltage and is RoHS compliant.
Product parameters
| ITEM | STANDARD VALUE | UNIT |
| Number of dots | 128x48 DOTS | ---- |
| Module dimension | 81.1x38.3x4.9 | mm |
| View display area | 66.52x24.92 | mm |
| Dot size | 0.48x0.48 | mm |
| Dot pitch | 0.52x0.52 | mm |
| Operating temp | -20~70 | ℃ |
| Storage temp | -30~80 | ℃ |
| Driving Method | 1/ 128 DUTY,1/ 12 BIAS,VOP= 3.3V | |
| Viewing direction | 6 O’CLOCK | |
| Display mode | STN | |
| Display type | TRANSMISSIVE / NEGATIVE | |
| Driver IC | ||
| Backlight |
WHITE |
|
Pin_SIGNAL
| Pin No. | Pin Name | Function |
| 1 | VDD | Power supply |
|
2 |
P/S |
This pin configures the interface to be parallel mode or serial mode. P/S = “H”: Parallel data input/output. P/S = “L”: Serial data input. |
|
3 |
C86 |
This is the MPU interface selection pin. C86 = “H”: 6800 Series MPU interface. C86 = “L”: 8080 Series MPU interface. |
|
4~8 |
V5~V1 |
This is a multi-level power supply for the liquid crystal drive. The voltage Supply applied is determined by the liquid crystal cell, and is changed through the use of a resistive voltage divided or through changing the impedance using an op. amp. Voltage levels are determined based on Vss, and must maintain the relative magnitudes shown below. V1 ≧V2 ≧V3 ≧V4 ≧V5 |
| 9 | C2+ |
When internal DC-DC voltage converter is used, external capacitor is connected between these pins. |
| 10 | C2- | |
| 11 | C1+ | |
| 12 | C1- | |
| 13 | C3+ | |
| 14 | VOUT | Positive voltage supply pin of the chip. |
| 15 | VSS | Negative power supply,0V |
| 16~23 | D7~D0 |
8bit Date bus, D7 : serial data input (SI) ; D6 : the serial clock input (SCL) |
|
24 |
E |
• When connected to 8080 series MPU, this pin is treated as the “/RD” signal of the 8080 MPU and is LOW-active. The data bus is in an output status when this signal is “L”. • When connected to 6800 series MPU, this pin is treated as the “E” signal of the 6800 MPU and is HIGH-active. This is the enable clock input terminal of the 6800 Series MPU. |
| 25 | R/W | When R/W = “H”: Read. When R/W = “L”: Write. |
|
26 |
A0 |
This is connect to the least significant bit of the normal MPU address bus, and it determines whether the data bits are data or command. A0 = “H”:Indicates that D0 to D7 are display data. A0 = “L”: Indicates that D0 to D7 are control data |
| 27 | /RES | Reset |
| 28 | /CS1 | Chip selection input |
Absolute Maximum Ratings
| Items | Symbol | MIN. | MAX. | Unit | Condition |
| Supply Voltage | VDD | -0.3 | +3.6 | V | VSS = 0V |
| Input Voltage | VIN | -0.3 | VDD+0.3 | V | VSS = 0V |
| Operating Temperature | TOP | -20 | +70 | ℃ | No Condensation |
| Storage Temperature | Tst | -30 | +80 | ℃ | No Condensation |
Electrical Characteristics
| Items | Symbol | MIN. | TYP. | MAX. | Unit | Condition |
| Operating Voltage | VDD | 3.0 | 3.3 | 3.6 | V | VDD |
| Input High Voltage | VIH | 0.8 x VDD | - | VDD | V | /CS1,/RES,A0,E , R/W,D0~D7,C86 |
| Input Low Voltage | VIL | VSS | - | 0.2 x VDD | V | |
| Output High Voltage | VOH | 0.8 x VDD | - | VDD | V | D0~D7 |
| Output Low Voltage | VOL | VSS | - | 0.2 x VDD | V | D0~D7 |
| Operation Current | Iop | 100 | - | 220 | μA | VDD=3.0V |
| Sleep mode | lDD | - | 0.1 | 4 | μA | Ta=25℃ |
| Standby mode | lDD | - | 5 | 10 | μA | Ta=25℃ |
LED Backlight Circuit
| Items | Symbol | MIN. | TYP. | MAX. | Unit | Condition |
| Forword Voltage | Vf BLA | - | - | - | V | VDD |
| Forword Current | If BLA | - | - | - | mA | VDD |
