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PCF2127AT/2Y The PCF2127AT/2Y is a Real Time Clock (RTC) and calendar IC from NXP Semiconductors. It features a Temperature Compensated Crystal Oscillator (TCXO) for high accuracy and low power consumption.
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PCF2127AT/2Y

Available from 4 distributors
Mfr Name: NXP Semiconductors
NXP Semiconductors
The PCF2127AT/2Y is a Real Time Clock (RTC) and calendar IC from NXP Semiconductors. It features a Temperature Compensated Crystal Oscillator (TCXO) for high accuracy and low power consumption.
✓ Total Stock: 24,789 pcs
$ Price Range: $5.21

PCF2127AT/2Y Available from 4 distributors

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
15,000 pcs
On Request
15000 pcs On Request 1 On Request On Request 21+ On Request On Request
Fe Components ✓
Non-Authorised Inventory information
6,000 pcs
On Request
6000 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
2,120 pcs
On Request
2120 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,669 pcs
On Request
1669 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

PCF2127AT/2Y Specifications Quick View

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PCF2127AT/2Y Description

Short technical summary and product information.

The NXP Semiconductors PCF2127AT/2Y is a CMOS Real Time Clock (RTC) and calendar IC designed for high accuracy and low power consumption. It integrates a Temperature Compensated Crystal Oscillator (TCXO) and a 32.768 kHz quartz crystal.

 

Key features include 512 bytes of general-purpose static RAM, selectable I2C-bus or SPI-bus interfaces, a backup battery switch-over circuit, and a programmable watchdog function. The device offers precise timekeeping with year, month, day, weekday, hours, minutes, and seconds, along with leap year correction. It supports a wide operating temperature range from -40°C to +85°C and operates from 1.8V to 4.2V.

 

This RTC is suitable for applications requiring accurate process timing, precision timekeeping, and access to accurate time of day. Its low supply current of typically 0.70 µA at 3.3V makes it ideal for products with long unattended operation times. The PCF2127AT/2Y is supplied in a 20-SOIC package suitable for surface mounting.

 

The device provides features such as a timestamp function with interrupt capability, battery low detection, power fail detection, and oscillator stop detection. The I2C-bus interface supports 400 kHz Fast-mode, while the SPI-bus interface supports speeds up to 6.5 Mbit/s.

PCF2127AT/2Y Quick Information

Product Type: Real Time Clock
Canonical Name: PCF2127AT/2Y Real Time Clock with TCXO
Subcategory: Clock/Calendar

PCF2127AT/2Y Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

PCF2127AT/2Y Estimated Pricing

Qty Low High
1+ $5.21 $5.21

Estimated market price range - modelled values for guidance only, not live distributor offers.

PCF2127AT/2Y Features

  • Integrated Temperature Compensated Crystal Oscillator (TCXO).
  • Selectable I2C or SPI bus interface.
  • 512 bytes of general-purpose static RAM.
  • Wide operating temperature range: -40°C to +85°C.
  • Low supply current: typical 0.70 µA at 3.3V.

PCF2127AT/2Y Applications

  • Ideal for electronic metering applications.
  • Suitable for precision timekeeping.
  • Used in GPS equipment for faster fix.
  • Applications requiring accurate process timing.
  • Products with long unattended operation.

PCF2127AT/2Y FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCF2127AT/2Y?

The operating voltage range is 1.8V to 4.2V.

What is the package type for the PCF2127AT/2Y?

The package type is 20-SOIC with a body width of 7.50mm.

What is the operating temperature range of the PCF2127AT/2Y?

The operating temperature range is -40°C to +85°C.

What is the typical accuracy of the PCF2127AT/2Y?

The typical accuracy is ±3 ppm from -15°C to +60°C for the PCF2127AT variant.

What is the typical current consumption of the PCF2127AT/2Y?

The typical current consumption is 0.70 µA at 3.3V.

How much general-purpose RAM does the PCF2127AT/2Y have?

It has 512 bytes of general-purpose static RAM.

What interfaces does the PCF2127AT/2Y support?

It supports a 400 kHz Fast-mode I2C-bus interface and a 3-line SPI-bus interface up to 6.5 Mbit/s.

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