40-DOT SEGMENT DRIVER
E2B0022-27-Y2 ¡ Semiconductor
¡ Semiconductor MSM5839B
40-DOT SEGMENT DRIVER
This version: MSM5839B Nov. 1997 Previous...
Description
E2B0022-27-Y2 ¡ Semiconductor
¡ Semiconductor MSM5839B
40-DOT SEGMENT DRIVER
This version: MSM5839B Nov. 1997 Previous version: Mar. 1996
GENERAL DESCRIPTION
The MSM5839B is a dot matrix LCD segment driver LSI which is fabricated using low power CMOS metal gate technology. This LSI consists of two 20-bit shift registers, two 20-bit latches, a 40-bit level shifter and a 40-bit 4-level driver. It converts serial data, which is received from an LCD controller LSI, to parallel data and outputs LCD driving waveform to the LCD panel. Expansion of display can easily be made by increasing the number of characters and character patterns. This LSI can drive a variety of LCD panels because the bias voltage, which determines the LCD driving voltage, can be optionally supplied from the external source.
FEATURES
Supply voltage : 4.5 to 5.5V LCD driving voltage : 8 to 18V Applicable LCD duty : 1/32 to 1/128 Bias voltage can be supplied externally Applicable common driver : MSM5238 (32 outputs) Package options: 56-pin plastic QFP (QFP56-P-910-0.65-K) (Product name: MSM5839B GS-K) 56-pin plastic QFP (QFP56-P-910-0.65-L2) (Product name: MSM5839B GS-L2) 56-pin plastic QFP (QFP56-P-910-0.65-2K) (Product name: MSM5839B GS-2K)
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¡ Semiconductor
MSM5839B
BLOCK DIAGRAM
O1 O2 O19 O20 O21 O22 O39 O40
VDD(V1) V2 V3 VEE(V4)
40-Bit 4-Level Driver
VDD
VEE 40-Bit Level Shifter DF LOAD 20-Bit Latch 20-Bit Latch VDD
VSS VSS
DI1 CP
20-Bit Shift Register
20-Bit Shift Register
DO...
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