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M48T58Y-70PC1
With the M48T58Y-70PC1 Real Time Clock
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Manufacturer:
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Mfr.Part #:
M48T58Y-70PC1
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Datasheet:
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feature-minimum-operating-supply-voltage-v:
4.5
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feature-maximum-operating-supply-voltage-v:
5.5
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feature-packaging:
Tube
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feature-pin-count:
28
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EDA/CAD Models:
Availability: 4392 PCS
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M48T58Y-70PC1 General Description
The M48T58/Y TIMEKEEPER?RAM is a 8 Kb x 8 non-volatile static RAM and real-time clock. The monolithic chip is available in two special packages to provide a highly integrated battery-backed memory and real-time clock solution.The M48T58/Y is a non-volatile pin and function equivalent to any JEDEC standard 8b Kb 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 M48T58/Y 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”.
Key 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
- Frequency test output for real-time clock
- Automatic power-fail chip deselect and WRITE protection
- WRITE protect voltages (VPFD= power-fail deselect voltage):
- M48T58: VCC= 4.75 to 5.5 V; 4.5 V ≤ VPFD≤ 4.75 V
- M48T58Y: VCC= 4.5 to 5.5 V; 4.2 V ≤ VPFD≤ 4.5 V
- 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 housing containing the battery and crystal
- Pin and function compatible with JEDEC standard 8 Kb x 8 SRAMs
- RoHS compliant
- Lead-free second level interconnect
Application
- Computer Motherboards: These modules are used on computer motherboards to maintain the system time and date information even when the computer is powered off.
- Network Equipment: In network routers, switches, and other networking equipment, these modules help maintain accurate timestamps and time-based functionalities.
- POS Systems: Point-of-sale (POS) systems use timekeeper RAM modules to record transaction timestamps and maintain time-sensitive data.
- Data Loggers: Timekeeper RAM modules are used in data loggers and measurement devices where accurate time and date information is essential for data analysis.
- Security Systems: In security systems such as alarm panels and access control systems to ensure accurate timestamping of events.
- Telecommunications: In telecommunications equipment for call detail record (CDR) logging and other time-sensitive applications.
Specifications
feature-minimum-operating-supply-voltage-v | 4.5 | feature-maximum-operating-supply-voltage-v | 5.5 |
feature-packaging | Tube | feature-rad-hard | |
feature-pin-count | 28 | feature-cecc-qualified | No |
feature-esd-protection | feature-escc-qualified | ||
feature-military | No | feature-aec-qualified | No |
feature-auto-motive | No | feature-p-pap | No |
feature-eccn-code | EAR99 | feature-svhc | No |
feature-svhc-exceeds-threshold | No |
Service Policies and Others
After-Sales & Settlement Related
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[email protected]Shipping Method
AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.
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Quality Guarantee
We promise to provide 365 days quality assurance service for all our products.
Availability: 4392 PCS
+BOMQty. | Unit Price | Ext. Price |
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1+ | - | - |
The prices below are for reference only.
All bill of materials (BOM) can be sent via email to [email protected], or fill below form to Quote for M48T58Y-70PC1, guaranteed quotes back within 12hr.
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