HT16LK24 Datasheet, PDF (1/67 Pages) Holtek Semiconductor Inc – RAM Mapping 67×4/63×8 LCD Driver with Key Scan

HT16LK24
RAM Mapping 67×4/63×8
LCD Driver with Key Scan
Feature
• Logic Operating Voltage:1.8V ~ 5.5V
• LCD Operating Voltage (V_LCD):2.4V ~ 6.0V
• Internal 32kHz RC oscillator
• Duty:1/1 (static), 1/2, 1/3, 1/4 or 1/8;
Bias: 1/1 (static), 1/2, 1/3 or 1/4
• Internal LCD bias generation with voltage-follower
buffers
• External V_LCD pin to supply LCD operating voltage
• Integrated regulator to adjust LCD operating voltage:
3.0V, 3.2V, 3.3V, 3.4V, 4.4V, 4.5V, 4.6V, 5.0V
• Four Selectable LCD frame frequencies: 64Hz,
85.3Hz, 128Hz or 170.6Hz
• Integrated LED driver up to 12 channels
• Support key scan function with up to 4×12 key
matrix
• Support up to 128 levels PWM luminance control
• Support I²C-bus or SPI 3-wire serial interface
• Up to 63×8 bits RAM for display data storage
• Display patterns:
– 1/1 duty: up to 67×1 patterns
– 1/2 duty: up to 67×2 patterns
– 1/3 duty: up to 67×3 patterns
– 1/4 duty: up to 67×4 patterns
– 1/8 duty: up to 63×8 patterns
• Support three driver output modes: Segment/COM,
LED or Key Scan
• Versatile blinking modes: off, 0.5Hz, 1Hz, 2Hz
• R/W address auto increment
• Support Power Save Mode for low power consumption
• Manufactured in silicon gate CMOS process
• Package Type: 64LQFP and 80LQFP packages
Applications
• Leisure products
• Games
• Telephone display
• Audio Combo display
• Video Player display
• Kitchen Appliance display
• Measurement equipment display
• Household appliance
• Consumer electronics
General Description
The HT16LK24 device is a memory mapping and
multi-function LCD controller driver. The Display
segments of the device may be 67 patterns for 1/1
duty display, 134 patterns for 1/2 duty display, 201
patterns for 1/3 duty display, 268 patterns for 1/4 duty
display or 504 patterns for 1/8 duty display. It can also
support LED drive outputs on certain Segment pins
with up to 128 levels luminance PWM control. The
key scan circuitry which can be organized into a 4×12
matrix is also integrated in this device. The software
configuration feature of the HT16LK24 device makes
it suitable for multiple LCD applications including
LCD modules and display subsystems. The HT16LK24
device communicates with most microprocessors/
microcontrollers via a two-wire bidirectional I²C-bus or
a three-wire SPI interface.
Rev. 1.20
1
November 25, 2015