SED1278

SED1278 CMOS DOT MATRIX LCD CONTROLLER DRIVER s DESCRIPTION The SED1278 is a character LCD controller-driver, capable of driving displays as large as 2 lines of 8 characters (5 × 8 pixels), with minimum external components. The SED1278 has an internal CGROM consisting of 240 characters (5 × 7) plus the underline cursor, JIS, ASCII, and eight user-programmable characters in RAM. The SED1278 has 40 segment output and 16 common output built-in. Thus, one chip is capable of displaying up to 16 characters. The SED1278 can display one line of 48 characters using an SED1681F (80-bit output) as an expansion segment driver. The SED1278 is fabricated using a silicon gate CMOS technology process and features very low power dissipation. This makes the device suitable for handheld and portable applications. s FEATURES Low-power CMOS technology 40 segment output 16 common output Duty: 1/8 or 1/16 (set by command) 4/8-bit CPU data interface, TTL compatible Two frame AC drive wave form CGROM: .................................... 240 characters CGRAM: ........................................ 8 characters Display data RAM: ... 80 × 8 bits (80 characters) expansion segment driver: Recommended SED1181F (64 output) LA Built-in power on power-on reset Built-in RC oscillator Built-in LCD driver voltage-divider network TTL compatible CPU interface Logic: 4.5V to 5.5V Supply voltage ................... LCD: 3.5V to 5.5V Package: QFP5-80 pins (F0A, F0B, F0C, F0D, F0G,...