PCF8593T/1,118

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PCF8593T/1,118

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IC RTC CLK/CALENDAR I2C 8-SOIC

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Spezifikationen

Attribut Wert
Supplier NXP USA Inc.,Rochester Electronics, LLC
Package / Case Tape & Reel (TR),Cut Tape (CT),Bulk
Part Status Active
Type Clock/Calendar
Features Alarm, NVSRAM
Memory Size 8B
Time Format HH:MM:SS:hh (12/24 hr)
Date Format YY-MM-DD-dd
Interface I²C, 2-Wire Serial
Voltage - Supply 2.5V ~ 6V
Current - Timekeeping(Max) 8µA ~ 15µA @ 2V ~ 5V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount

Übersicht

Description

PCF8593T is a low‑power I2C real‑time clock/calendar from NXP (Philips). It keeps time from a 32.768 kHz crystal and can maintain time during power loss via VBAT (battery backup). Time data is stored in BCD: seconds, minutes, hours, day, date, month, year; supports 24/12 hour formats and leap‑year correction. Features include two alarms, a timer, and a programmable square‑wave output. Supply voltage ranges 2.0–5.5 V with very low current in run/standby. It uses a two‑wire I2C interface with a simple register map. Packaging variants exist; the suffix T/1,118 is typically a package or lot code rather than a performance spec. Common applications: clocks/calendars in consumer electronics, data loggers, and portable devices. For exact pins, register map, timing, and electrical specs, consult the PCF8593T datasheet from NXP.

Equivalent

PCF8593T/1,118 is an I2C real-time clock/calendar. Common equivalents from other vendors include:
- NXP: PCF8563, PCF85263A
- ST: M41T00, M41T02
- Microchip: MCP7940N, MCP79410
- Maxim/Dallas: DS1307, DS3231
- Renesas: ISL1208, ISL1209
Note: exact pinout, features (alarm, RAM, 1 Hz output) and accuracy vary by device.

Features

Here are concise features of PCF8593T/1,118 (RTC with I2C interface):
- Real-time clock/calendar with leap-year handling (seconds, minutes, hours, day, date, month, year; 12/24h mode)
- I2C-bus interface (2-wire serial) for easy host communication
- Battery-backup operation (VBAT) to preserve timekeeping during power-down
- Optional external 32.768 kHz crystal input for accurate timebase
- On-chip RAM for data storage (general-purpose data area)
- Alarm and timer functionality with interrupt output
- Programmable square-wave/interrupt output
- Wide supply range (approximately 2.5 V to 5.5 V)
- Low power consumption for battery-operated applications
- Industrial temperature range (-40°C to +85°C)
- Small 8-pin package (DIP8/SO8 variants) for easy embedding
Note: exact RAM size and alarm/timer features may vary by revision; consult the datasheet for precise specifications.

Pinout

- Pin count: 8 pins (DIP-8/SO-8 variants)
- Function: Real-time clock/calendar (RTC) with I2C interface. Provides timekeeping registers (seconds through year) and a programmable square-wave/interrupt output; requires an external 32.768 kHz oscillator.

Manufacturer

Manufacturer: NXP Semiconductors (formerly Philips Semiconductors).
What kind of company: A Dutch multinational that designs and manufactures semiconductor devices and integrated circuits for automotive, consumer electronics, industrial, and other applications.

Package

8-pin package. Typically available as SO-8 (small-outline); DIP-8 version is also common.

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