M48T18-100PC1
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M48T18-100PC1
IC RTC CLK/CALENDAR PAR 28DIP
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$3.45
Price update：a months ago
Available in stock：
39
45
Serves customers in 45 countries
1000+
Worldwide Manufacturers
$140M
$140M Growth in 5 Years
50.0M+
50M Parts Shipped in 5 Years
STMicroelectronics
STMicroelectronics is a leading global semiconductor company known for pioneering cutting-edge solutions across microelectronics. With unmatched silicon expertise, potent manufacturing, rich IP, and strategic alliances, it's at the forefront of SoC technology, guiding convergence trends.
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The M48T08/18/08Y TIMEKEEPER® RAM is an 8 K x 8 non-volatile static RAM and realtime clock which is pin and function compatible with the DS1643. The monolithic chip is available in two special packages to provide a highly integrated battery-backed memory and real-time clock solution.
The M48T08/18/08Y is a non-volatile pin and function equivalent to any JEDEC standard 8 K x 8 SRAM. It also easily fits into many ROM, EPROM, and EEPROM sockets, providing the non-volatility of PROMs without any requirement for special WRITE timing or limitations on the number of WRITEs that can be performed.
The 28-pin, 600 mil DIP CAPHAT™ houses the M48T08/18/08Y silicon with a quartz crystal and a long-life lithium button cell in a single package. The 28-pin, 330 mil SOIC provides sockets with gold-plated contacts at both ends for direct connection to a separate SNAPHAT® housing containing the battery and crystal. The unique design allows the SNAPHAT® battery package to be mounted on top of the SOIC package after the completion of the surface mount process. Insertion of the SNAPHAT® housing after reflow prevents potential battery and crystal damage due to the high temperatures required for device surface-mounting. The SNAPHAT® housing is keyed to prevent reverse insertion.
The SOIC and battery/crystal packages are shipped separately in plastic anti-static tubes or in tape & reel form. For the 28-lead SOIC, the battery/crystal package (e.g., SNAPHAT®) part number is “M4T28-BR12SH” or “M4T32-BR12SH”.
Features
■ Integrated ultra low power SRAM, real-time clock, power-fail control circuit, and battery
■ BYTEWIDE™ RAM-like clock access
■ BCD coded year, month, day, date, hours, minutes, and seconds
■ Typical clock accuracy of ±1 minute a month, at 25 °C
■ Automatic power-fail chip deselect and WRITE protection
■ WRITE protect
VPFD = power-fail deselect voltage):
– M48T08: VCC = 4.75 to 5.5 V; 4.5 V ≤ VPFD ≤ 4.75 V
– M48T18/T08Y: VCC = 4.5 to 5.5 V; 4.2 V ≤ VPFD ≤ 4.5 V
■ Software controlled clock calibration for high accuracy applications
■ Self-contained battery and crystal in the CAPHAT™ DIP package
■ Packaging includes a 28-lead SOIC and SNAPHAT® top (to be ordered separately)
■ SOIC package provides direct connection for a snaphat top which contains the battery and crystal
■ Pin and function compatible with DS1643 and JEDEC standard 8 K x 8 SRAMs
■ RoHS compliant
– Lead-free second level interconnect
Feature
- Integrated ultralow power SRAM, real-time clock, power-fail control circuit and battery
- BYTEWIDE™RAM-like clock access
- BCD coded year, month, day, date, hours, minutes and seconds
- Typical clock accuracy of ±1 minute a month at 25°C
- Software controlled clock calibration for high accuracy applications
- Automatic power-fail chip deselect and WRITE protection
- 100ns Speed
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Product Attributes
| TYPE | DESCRIPTION | Select all |
|---|---|---|
| Time Format | HH:MM:SS (24 hr) | |
| Supplier Device Package | 28-PCDIP, CAPHAT® | |
| Type | Clock/Calendar | |
| Package / Case | 28-DIP Module (0.600", 15.24mm) | |
| Programmable | Not Verified | |
| Mounting Type | Through Hole | |
| Product Status | Active | |
| Operating Temperature | 0°C ~ 70°C | |
| Package | Tube | |
| Current - Timekeeping (Max) | 3mA @ 4.5V ~ 5.5V | |
| Series | Timekeeper® | |
| Voltage - Supply | 4.5V ~ 5.5V | |
| Interface | Parallel | |
| Date Format | YY-MM-DD-dd | |
| Features | Leap Year, Watchdog Timer |
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$3.45
Price update：a months ago
Available in stock：
39
STMicroelectronics
STMicroelectronics is a leading global semiconductor company known for pioneering cutting-edge solutions across microelectronics. With unmatched silicon expertise, potent manufacturing, rich IP, and strategic alliances, it's at the forefront of SoC technology, guiding convergence trends.
View All Product from STMicroelectronicsBlog
- Unveiling the Future: The Surge of Microcontrollers in 2024In the dynamic world of electronic components, microcontrollers stand out as a testament to innovation and versatility. As we edge closer to 2024, the landscape for microcontrollers and semiconductors, spearheaded by giants like STMicroelectronics, Texas Instruments, and Microchip, is set for remarkable transformation.
- Microcontrollers vs. Microprocessors: Unveiling the Core Differences for Embedded Systems EngineeringSeasoned professionals in the realm of embedded systems engineering and product development within the electronics sphere often grapple with distinguishing between microcontrollers and microprocessors. Despite their foundational role in the design and fabrication of a myriad of electronic gadgets, understanding their unique functionalities based on mere definitions can be challenging:
- A Deep Dive into the Global Ceramic Capacitors MarketJoin us in exploring the emerging subplot of environmental consciousness within the global ceramic capacitors market.
- Mastering Current Measurement with MicrocontrollersUnlock precise current measurement secrets with Microcontrollers! Conquer challenges, meet superhero solutions, and revolutionize accuracy with on-chip Analog Core Independent Peripherals (CIPs).
- What is a Rectifier Diode: A Guide to BeginnersMeet the unsung heroes of electronics—Rectifier Diodes! Explore their magic, applications, and join the behind-the-scenes adventure into gadget power.
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