BL55077.pdf? 单片 LCD 控制器/驱动器
? 背极驱动方式：静态或 2、3、4 复合
? 偏置电压：静态、1/2、1/3
? 宽工作电压范围：2.5~5.5V
? 串行数据接口
? 4 背极，40 段极输出
? 40x4 共 160 位显存
? 低功耗设计，节电模式下 5V 动态工作电流为 14μA，
3.3V 动态工作电流为 9μA；
通过指令设置 SLEEP 模式时，电流约为 1.5μA
? 可级联至最多 16 个器件
? 多种闪烁方式
? VLCD 引脚调整 LCD 工作电压
? 双向-二线串行总线通信
? 兼容 TTL/COMS 电平
? 先进的低压 CMOS 工艺
? 高抗 EMC 性能
? LQFP-64 封装形式
? 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
