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参数资料
| 型号： | PCF8563TD-T |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | XO, clock |
| 英文描述： | Real-time clock/calendar |
| 中文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封装： | 3.90 MM, PLASTIC, SO-8 |
| 文件页数： | 14/32页 |
| 文件大小： | 711K |
| 代理商： | PCF8563TD-T |
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Philips Semiconductors
PCF8563
Real-time clock/calendar
Product specication
16 April 1999
21 of 30
9397 750 04855
Philips Electronics N.V. 1999. All rights reserved.
12. Application information
12.1 Quartz crystal frequency adjustment
Method 1: Fixed OSCI capacitor — By evaluating the average capacitance
necessary for the application layout a xed capacitor can be used. The frequency is
best measured via the 32.768 kHz signal available after power-on at the CLKOUT
pin. The frequency tolerance depends on the quartz crystal tolerance, the capacitor
tolerance and the device-to-device tolerance (on average
±5 × 106).
Average deviations of
±5 minutes per year can be easily achieved.
Method 2: OSCI trimmer — The oscillator is tuned to the required accuracy by
adjusting a trimmer capacitor on pin OSCI and measuring the 32.768 kHz signal
available after power-on at the CLKOUT pin.
Method 3: OSCO output — Direct output measurement on pin OSCO (accounting
for test probe capacitance).
Fig 19. Application diagram.
handbook, full pagewidth
MGM665
SCL
SDA
VSS
OSCI
OSCO
CLOCK CALENDAR
PCF8563
SDA
SCL
MASTER
TRANSMITTER/
RECEIVER
VDD
SDA
SCL
RR
VDD
(I2C-bus)
R: pull-up resistor
R =
1 F
tr
Cb
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCF8563T-F4 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Real-time clock/calendar |
| PCF8563TF4.118 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Real-time clock/calendar |
| PCF8563TS | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Real-time clock/calendar |
| PCF8563TS/4 | 制造商:NXP Semiconductors 功能描述:RTC/Calender,1.8-5.5V,PCF8563TS/4 |
| PCF8563TS/4,118 | 功能描述:实时时钟 ULTRA LOW PWR CLOCK CALENDAR RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
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