| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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2,222 pcs
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2222 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Automotive Grade | |
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The DS1554-70+ is a nonvolatile, Y2K-compliant timekeeping RAM IC from Analog Devices / Maxim Integrated. It integrates NV SRAM, a Real-Time Clock (RTC), crystal, power-fail control circuit, and a lithium energy source. The clock registers are accessed identically to the static RAM, residing in the top 16 RAM locations. This device offers a century byte register for Y2K compliance and operates nonvolatily for over 10 years without power.
Key features include a precision power-on reset, programmable watchdog timer, and RTC alarm. It supports BCD-coded year, month, date, day, hours, minutes, and seconds with automatic leap-year compensation valid up to the year 2100. The IC also includes a battery voltage-level indicator flag and power-fail write protection with ±10% VCC power-supply tolerance.
This Clock/Calendar IC operates at a voltage range of 4.5V to 5.5V with a typical current consumption of 6mA at 5V. It is specified for an operating temperature range of 0°C to 70°C. The DS1554-70+ is supplied in a 32-EDIP package and is mounted via a through-hole process. The interface is parallel, and it supports both YY-MM-DD-dd date format and HH:MM:SS (24 hr) time format.
The DS1554-70+ has a memory size of 32KB.
The operating voltage for the DS1554-70+ is between 4.5V and 5.5V.
The DS1554-70+ operates in a temperature range of 0°C to 70°C.
The DS1554-70+ is supplied in a 32-DIP Module (0.600", 15.24mm) package.
Key features include integrated NV SRAM, Real-Time Clock (RTC), Crystal, Power-Fail Control Circuit, Lithium Energy Source, Century Byte Register (Y2K Compliant), Programmable Watchdog Timer, and RTC Alarm.