HT1621B is an LCD driver IC commonly used to control segmented displays. Below are the key parameters and features of the HT1621B:

Key Parameters:

Operating Voltage:

2.4V to 5.2V (typical operating range)

Current Consumption:

Operating: 2 µA (at 3V)

Power Down: 1 µA (at 3V)

LCD Bias Voltage:

1/2 or 1/3 bias voltage for LCD driving.

Display Capability:

32×4 (128 dots) LCD driving capability.

Interface:

3-wire serial interface (Data, Write, and Chip Select pins).

Oscillator:

Built-in oscillator (internal clock) or can use an external clock.

Frame Frequency:

LCD frame frequency of approximately 150 Hz (adjustable by clock).

Operating Temperature:

-40°C to +85°C.

Features:

Clock Source: Can operate with an external clock or use an internal RC oscillator.

Low Power Consumption: Ideal for battery-operated devices.

Power-Saving Modes: Includes an integrated power-saving function.

Data Transmission: Simple 3-wire serial interface, facilitating easy communication.

Flexible Bias Modes: 1/2 or 1/3 bias selectable for different contrast requirements.

Multiple Pin Configurations: Supports multiplexing for connecting a variety of LCD segment layouts.

This makes the HT1621B suitable for applications like clocks, meters, and other devices needing a low-power LCD dsplay driver.

i

Our 6 major advantages

Professional quality, genuine core service, original authentic products, spot inventory

Original authentic products

Level by level, quality assurance, every component can be traced back

1o complete categories

Stable supply and complete varieties make you no longer have trouble purchasing electronic chips

Brand authorization

Direct supply from the original factory/brand agent distribution, traceable channels, to protect quality

Spot inventory

Large spot inventory, lightning delivery

Professional order matching

Integrity management, professional and efficient, providing one-stop procurement, order matching services

Fast and efficient

My dedication, your peace of mind, providing you with high-quality and efficient customer experience