產品概述
The PCF8523TK/1,118 is a CMOS Real-time Clock (RTC) and Calendar optimized for low power consumption. It provides year, month, day, weekday, hours, minutes and seconds based on a 32.768kHz quartz crystal. Data is transferred serially via the I2C-bus with a maximum data rate of 1000kbps. Alarm and timer functions are available with the possibility to generate a wake-up signal on an interrupt pin. An offset register allows fine-tuning of the clock. The PCF8523 has a backup battery switch-over circuit, whICh detects power failures and automatically switches to the battery supply when a power failure occurs.
Seconds to years resolution
Battery backup input pin and switch-over circuit
Freely programmable timer and alarm with interrupt capability
Oscillator stop detection function
Internal power-ON Reset (POR)
Open-drain interrupt or clock output pins
Programmable offset register for frequency adjustment
Selectable integrated oscillator load capacitors for CL=7pF or CL=12.5pF
應用
計量
產品信息
日期格式: 年:月:周:日:時:分:秒 時間格式: 二進制 時鐘芯片類型: 日歷, 時鐘 電源電壓最小值: 1.2V 電源電壓最大值: 5.5V 時鐘集成電路封裝類型: HVSON 針腳數: 8引腳 芯片接口類型: I2C 工作溫度最小值: -40°C 工作溫度最高值: 85°C 產品范圍: - 汽車質量標準: - MSL: MSL 1 -無限制