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MAXIM INTEGRATED / ANALOG DEVICES DS1554WP120 Real-Time Clock Module
The DS1554WP-120+ from Maxim Integrated Products is a 256K non-volatile, Y2K-compliant real-time clock/calendar (RTC) with integrated 32K x 8 static RAM, housed in a 34-pin PowerCap package. It features an RTC alarm, watchdog timer, power-on reset, battery monitor, and automatic leap year correction. The device provides a byte-wide interface for user access to all registers, which include century, year, month, date, day, hours, minutes, and seconds in 24-hour BCD format. Internal oscillator operation continuously updates the internal register set, with provisions for external register access and clock/calendar synchronization. Powered by a 3.3V supply (±10%), it consumes approximately 10mA operating current and operates over a temperature range of 0°C to 70°C. The IC includes an integrated crystal, power fail control circuit, lithium energy source, and features like power fail write protection, a voltage level indicator flag, precision power-on reset, programmable watchdog timer, and RTC alarm. It is designed for long-term operation, with over 10 years of battery-backed data retention, and supports power supply tolerances of ±10%. The lithium battery can be electrically disconnected to retain freshness, and the device has a read/write cycle time of 120ns.
MAXIM INTEGRATED / ANALOG DEVICES DS1554WP120 Real-Time Clock Module Specifications:
- Non-volatile 256K static RAM
- RTC features: alarm, leap year correction, century register
- Powered by 3.3V ±10% supply
- Operational temperature range: 0°C to 70°C
- Cycle time: 120ns
- Long-term data retention over 10 years with battery backup
- Integrated crystal, power-fail control, lithium energy source
- Power fail write protection, voltage level indicator flag
- Power-on reset, programmable watchdog timer
- Supports power supply tolerances of ±10%
- Electrical disconnect of lithium battery for freshness
- Includes integrated oscillator and external register access
- Battery monitored by internal circuitry
- Open-drain IRQ/FT and RST outputs
- PowerCap module design to prevent damage during reflow
Buy the Buy Maxim DS1554WP120 Part Number DS1554WP-120+ Online
Discover the Maxim DS1554WP-120+ for reliable, Y2K-compliant timekeeping with 256K non-volatile RAM. Suitable for industrial and embedded systems, it features a programmable alarm, watchdog timer, power-on reset, and long battery life. Powered by a 3.3V supply, it maintains accurate time with automatic leap year correction and an integrated crystal. The PowerCap module design offers enhanced protection during manufacturing. With cycle times of 120ns and operation from 0°C to 70°C, it ensures long-term data integrity and system stability, making it ideal for critical timing applications.
Order your Maxim SeriesDS1554WP120 RTC today and give your projects the dependable long-term timekeeping and data retention they deserve.
Frequently Asked Questions
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You can download the DS1554WP120 datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.
Who is the manufacturer of DS1554WP120?
MAXIM INTEGRATED / ANALOG DEVICES