BL55077.pdf? 單片 LCD 控制器/驅動器
? 背極驅動方式：靜態或 2、3、4 復合
? 偏置電壓：靜態、1/2、1/3
? 寬工作電壓范圍：2.5~5.5V
? 串行數據接口
? 4 背極，40 段極輸出
? 40x4 共 160 位顯存
? 低功耗設計，節電模式下 5V 動態工作電流為 14μA，
3.3V 動態工作電流為 9μA；
通過指令設置 SLEEP 模式時，電流約為 1.5μA
? 可級聯至最多 16 個器件
? 多種閃爍方式
? VLCD 引腳調整 LCD 工作電壓
? 雙向-二線串行總線通信
? 兼容 TTL/COMS 電平
? 先進的低壓 CMOS 工藝
? 高抗 EMC 性能
? LQFP-64 封裝形式
? Single-chip LCD controller and driver
? 40 segment drives:
? Up to twenty 7-segment alphanumeric characters
? Up to ten 14-segment alphanumeric characters
? Any graphics of up to 160 elements
? Versatile blinking modes
? No external components required
(even in multiple device applications)
? Selectable backplane drive configuration:
static, 2, 3, or 4 backplane multiplexing
? Selectable display bias configuration: static, 1?2, or 1?3
? Internal LCD bias generation with voltage-follower buffers
? 40 x 4-bit RAM for display data storage
? Auto-incremented display data loading
across device subaddress boundaries
? Display memory bank switching
in static and duplex drive modes
? Wide logic LCD supply range:
? From 2 V for low-threshold LCDs
? Up to 6 V for high-threshold twisted nematic LCDs
? Low power consumption
? May be cascaded for large LCD applications
(up to 2560 elements possible)
? No external components required
? Separate or combined LCD and logic supplies
? Optimized pinning for plane wiring in both
single and multiple PCF8576C applications
? Power-saving mode for extremely low power
consumption in battery-operated and telephone applications
