HT9B95 Datasheet, PDF (1/32 Pages) Holtek Semiconductor Inc – RAM Mapping 39×8 / 43×4 LCD Driver

HT9B95A/B/G
RAM Mapping 39×8 / 43×4 LCD Driver
Feature
• Logic Operating Voltage: 2.4V~5.5V
• Integrated oscillator circuitry
• Bias: 1/3 or 1/4
• Internal LCD bias generation with voltage-follower
buffers
• External V_LCD pin to supply LCD operating voltage
• Support I²C-bus serial interface
• Integrated voltage adjustment function for LCD
driving voltage
• Up to 39×8 bits RAM for display data storage
• Display patterns
♦♦ _{HT9B95A: 35×8 patterns - 35 segments and 8 commons}
♦♦ _{HT9B95B: 39×8 patterns - 39 segments and 8 commons}
43×4 patterns - 43 segments and 4 commons
♦♦ _{HT9B95G: 39×8 patterns - 39 segments and 8 commons}
43×4 patterns - 43 segments and 4 commons
• Support Power Save Mode for low power consumption
• Package Type
♦♦ _{HT9B95A: 48-pin TSSOP, 52-pin LQFP}
♦♦ _{HT9B95B: 52-pin LQFP}
♦♦ _{HT9B95G: COG}
Selection Table
Part No. COM SEG
Package
HT9B95A 8
35 48TSSOP, 52LQFP
8
HT9B95B
4
39
52LQFP
43
8
HT9B95G
4
39
COG
43
Applications
• Leisure products
• Telephone display
• Household appliance
• Consumer electronics
General Description
The HT9B95 is a memory mappling and multi-
function LCD controller driver. The maximum display
segments of the device are 312 patterns (39 segments
and 8 commons) or 280 patterns (35 segments and 8
commons) display depending upon which device is
selected. The software configuration feature of the
HT9B95 device makes it suitable for multiple LCD
applications including LCD modules and display
subsystems. The HT9B95 device communicates with
most microprocessors / microcontrollers via a two-wire
bidirectional I²C-bus interface.
Rev. 1.10
1
November 25, 2015