CBM32S32A Ultra high precision, I²C RTC, integrated crystal and SRAM

The CBM32S32 is a low-cost temperature-compensated crystal oscillator (TCXO) with a very accurate, temperature-compensated, integrated real-time clock (RTC) and

236 bytes of battery-backed SRAM. Additionally, the CBM32S32 incorporates a battery input and maintains accurate timekeeping when main power to the device is inter rupted. The integration of the crystal resonator enhances the long-term accuracy of the device as well as reduces the piece-part count in a manufacturing line.
The CBM32S32 is available in commercial and industrial temperature ranges, and is offered in an industry-standard 20-pin, 300-mil SO package.The RTC maintains seconds, minutes, hours, day, date,month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with an AM/PM indicator. Two programmable time-ofday alarms and a programmable square-wave output are provided. Address and data are transferred serially through an I2C bidirectional bus.A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, to provide a reset output, and to automatically switch to the backup supply when necessary. Additionally, the RST pin is monitored as a pushbutton input for generating a µP reset.

Parameters
Features
Applications

Supply(V):2.3 to 5.5
Time holding current(nA):0.15
Load Capacitance(pF):--
Memory Type:NV SRAM
Interface:I2C
Function:RTC

Accuracy ±2ppm from 0°C to +40°C
Accuracy ±3.5ppm from -40°C to +85°C
Battery Backup Input for Continuous Timekeeping
Operating Temperature Ranges

Commercial: 0°C to +70°C

Industrial: -40°C to +85°C
236 Bytes of Battery-Backed SRAM
Low-Power Consumption
Real-Time Clock Counts Seconds, Minutes,

Hours, Day, Date, Month, and Year with Leap Year

Compensation Valid Up to 2099
Two Time-of-Day Alarms
Programmable Square-Wave Output
Fast (400kHz) I2C Interface
3.3V Operation
Digital Temp Sensor Output: ±3°C Accuracy
Register for Aging Trim
RST Input/Output
300-Mil, 20-Pin SO Package
Underwriters Laboratories Recognized

Servers
Utility Power Meters
Telematics
GPS

Type	Title	File Size	Date	Download
Selection Guide	Corebai Selection Guide Rev.En2023.pdf	7.73M	2024-01-24	Download

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计算工具

ANALOG-ENGINEER-CALC — 模拟工程师计算器

模拟工程师计算器旨在加快模拟电路设计工程师经常使用的许多重复性计算。该基于 PC 的工具提供图形界面，其中显示各种常见计算的列表（从使用反馈电阻器设置运算放大器增益到为稳定模数转换器 (ADC) 驱动器缓冲器电路选择合适的电路设计元件）。除了可用作单独的工具之外，该计算器还能够很好地与模拟工程师口袋参考书中所述的概念配合使用。

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Product number	Rating	Inventory(pcs)	Price	Package	MSL	RoHS	MPQ	Operating Temperature Range (℃)	Order
CBM32S32AS20	Industrial grade	0	$ 0.00 	SOP-20	MSL 3	RoHS	Tape and Reel, 2500	-40 to 85	- + Requested quantity exceeds in stock amount Add to cart