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PCF2127T/2Y The NXP Semiconductors PCF2127T/2Y is a Real Time Clock (RTC) and calendar IC featuring a TCXO for high accuracy. It offers I2C and SPI interfaces and 512 bytes of SRAM.
Mfr Part #:

PCF2127T/2Y

Available from 2 distributors
Mfr Name: NXP Semiconductors
NXP Semiconductors
The NXP Semiconductors PCF2127T/2Y is a Real Time Clock (RTC) and calendar IC featuring a TCXO for high accuracy. It offers I2C and SPI interfaces and 512 bytes of SRAM.
✓ Total Stock: 12,667 pcs
$ Price Range: $5.21

PCF2127T/2Y Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Fe Components ✓
Non-Authorised Inventory information
9,000 pcs
On Request
9000 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
3,667 pcs
On Request
3667 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.

PCF2127T/2Y Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Date Format
Features
Interface
Lead Spacing
Memory Size
Mounting Type
Operating Temperature
Storage Temperature
Supplier Device Package
Tape & Reel
Time Format
Type
Voltage
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PCF2127T/2Y Description

Short technical summary and product information.

The PCF2127T/2Y from NXP Semiconductors 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) with a 32.768 kHz quartz crystal, providing precise timekeeping capabilities.

 

Key features include 512 bytes of general-purpose static RAM, a selectable I2C-bus or SPI-bus interface, and a backup battery switch-over circuit. The device supports year, month, day, weekday, hours, minutes, and seconds, along with leap year correction. It also includes a programmable watchdog function and a timestamp function with interrupt capability.

 

Operating within a temperature range of -40°C to +85°C, the PCF2127T/2Y is suitable for industrial applications. It supports an operating voltage range of 1.8V to 4.2V and exhibits low supply current, typically 0.70 µA at 3.3V. The IC is available in a 16-SOIC package, designed for surface mounting.

 

Applications for this RTC include electronic metering, precision timekeeping, GPS equipment, and any system requiring accurate process timing or long unattended operation.

PCF2127T/2Y Quick Information

Product Type: Real Time Clock
Canonical Name: PCF2127T/2Y Real Time Clock IC
Subcategory: Clock/Calendar

PCF2127T/2Y Compliance

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

PCF2127T/2Y Estimated Pricing

Qty Low High
1+ $5.21 $5.21

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

PCF2127T/2Y Features

  • Integrated TCXO and 32.768 kHz crystal.
  • 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.

PCF2127T/2Y Applications

  • Ideal for electronic metering applications.
  • Provides precision timekeeping for systems.
  • Enhances GPS equipment time-to-first-fix.
  • Suitable for applications needing accurate process timing.
  • Supports products with long unattended operation.

PCF2127T/2Y FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the PCF2127T/2Y?

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

What package type is the PCF2127T/2Y available in?

The PCF2127T/2Y is available in a 16-SOIC package with a body width of 7.50mm.

What are the interface options for the PCF2127T/2Y?

The PCF2127T/2Y supports both I2C and SPI interfaces.

How much SRAM does the PCF2127T/2Y have?

The PCF2127T/2Y has 512 bytes of general-purpose static RAM.

What is the typical supply current for the PCF2127T/2Y?

The typical supply current is 0.70 µA at 3.3V.

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