S6A2067

80 SEGMENT DRIVER FOR DOT MATRIX LCD S6A2067 INTRODUCTION The S6A2067 is a LCD driver lC which is fabricated by low power CMOS technology. Basically this lC consists of 40 x 2 bit bi-directional shift register, 40 x 2 bit data latch and 40 x 2 bit LCD driver (refer to Figure 1). This lC can be used as segment driver. FUNCTION Dot matrix LCD driver with 80 channel output. Input / Output signal - Output: 40 x 2 channel waveform for LCD driving - Input: Serial display data and control signal pulse from the controller lC. Bias voltage (V1 to V4) FEATURES Display driving bias: static ~ 1/5 Power supply voltage: 2.7V to 5.5V Supply voltage for display: 3.0V to 13.0V (VLCD = VDD - VEE) Interface Driver (cascade connection) S6A0065, Other S6A2067 Controller S6A0069 S6A0070 S6A0073 CMOS Process 100QFP or bare chip available 1 S6A2067 80 SEGMENT DRIVER FOR DOT MATRIX LCD BLOCK DIAGRAM S1 S2 Part 1 S39 S40 S41 S42 Part 2 S79 S80 V1 V2 V3 V4 LCD DRIVER LCD DRIVER VDD Data Latch (40 bits) Bidirectional Shift Register (40 bits) M CL1 CL2 SW Contr Logic Data Latch (40 bits) Bidirectional Shift Register (40 bits) VSS VEE DL1 SHL1 DR1 DL2 SHL2 DR2 Figure 1. S6A2067 Functional Block Diagram 2 80 SEGMENT DRIVER FOR DOT MATRIX LCD S6A2067 PIN CONFIGURATION 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 S70 S69 S68 S67 S66 S65 S64 S63 S62 S61 S60 S59 S...