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$5000ST MK48T02B-20
High-Accuracy Timer for Counting Down to Any Moment
Brands: Stmicroelectronics
Mfr.Part #: MK48T02B-20
Datasheet: MK48T02B-20 Datasheet (PDF)
Package/Case: DIP-24
Product Type: Embedded Processors & Controllers
RoHS Status:
Stock Condition: 2,565 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
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MK48T02B-20 General Description
MK48T02B-20 is a type of non-volatile static RAM (NVRAM) produced by Integrated Device Technology (IDT). It is commonly used as a timekeeper for real-time clock applications in various electronic devices.
Features
- 2048 bits of non-volatile static RAM organized as 256 words by 8 bits
- Integrated lithium energy source with an estimated 10-year life
- Automatic power-fail chip deselect and write protection
- TTL-compatible, multiplexed address and data bus
Application
- Real-time clock and calendar functions in various electronic devices, such as computers, servers, printers, and communication equipment.
- Data storage for applications that require long-term retention of critical data, even in the event of a power failure.
- Battery backup for volatile memories, such as dynamic RAM (DRAM), to ensure data retention during power outages.
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Source Content uid | MK48T02B-20 | Rohs Code | No |
| Part Life Cycle Code | Obsolete | Ihs Manufacturer | STMICROELECTRONICS |
| Part Package Code | DIP | Package Description | PLASTIC, DIP-24 |
| Pin Count | 24 | External Data Bus Width | 8 |
| Information Access Method | PARALLEL, DIRECT ADDRESS | Interrupt Capability | N |
| JESD-30 Code | R-PDIP-T24 | JESD-609 Code | e0 |
| Number of Terminals | 24 | On Chip Data RAM Width | 8 |
| Operating Temperature-Max | 70 °C | Package Body Material | PLASTIC/EPOXY |
| Package Code | DIP | Package Equivalence Code | DIP24,.6 |
| Package Shape | RECTANGULAR | Package Style | IN-LINE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED | Power Supplies | 5 V |
| Qualification Status | Not Qualified | RAM (words) | 2040 |
| Seated Height-Max | 9.652 mm | Supply Current-Max | 80 mA |
| Supply Voltage-Max | 5.5 V | Supply Voltage-Min | 4.75 V |
| Supply Voltage-Nom | 5 V | Surface Mount | NO |
| Technology | CMOS | Temperature Grade | COMMERCIAL |
| Terminal Finish | Tin/Lead (Sn/Pb) | Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54 mm | Terminal Position | DUAL |
| Time-Min | SECONDS | Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Volatile | NO | Width | 15.24 mm |
| uPs/uCs/Peripheral ICs Type | TIMER, REAL TIME CLOCK |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
 |
DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
 |
Wire Transfer | charge US$30.00 banking fee. |
 |
Paypal | charge 4.0% service fee. |
 |
Credit Card | charge 3.5% service fee. |
 |
Western Union | charge US.00 banking fee. |
 |
Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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![Product]( "Product")
Step1 :Product
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![Vacuum packaging]( "Vacuum packaging")
Step2 :Vacuum packaging
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![Anti-static bag]( "Anti-static bag")
Step3 :Anti-static bag
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![Individual packaging]( "Individual packaging")
Step4 :Individual packaging
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![Packaging boxes]( "Packaging boxes")
Step5 :Packaging boxes
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![bar-code shipping tag]( "bar-code shipping tag")
Step6 :bar-code shipping tag
All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Equivalent Parts
For the MK48T02B-20 component, you may consider these replacement and alternative parts:
Part Number
Brands
Package
Description
Part Number : DS1643-120
Brands :
Package :
Description : - manufactured by Maxim Integrated
Part Number : M48T02-150PC1
Brands :
Package : DIP-24
Description : RTC, Timekeeper NVSRAM, Parallel, 4.75 V to 5.5 V, DIP-24
Part Number : FM1608-120-PG
Brands :
Package :
Description : - manufactured by Cypress Semiconductor
Part Number : MSM48C1-20RS
Brands :
Package :
Description : - manufactured by OKI Semiconductor
Part points
-
The MK48T02B-20 is a non-volatile static RAM chip that includes a timekeeper function. It offers a battery backup to retain stored data in case of power loss. With a low-power CMOS technology, this chip is ideal for applications that require reliable data storage and time-keeping capabilities.
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Equivalent
Equivalent products of MK48T02B-20 chip are M48T02-150PC1, DS1643-120, and DS1643P-120. These chips are real-time clock (RTC) chips with a 2K x 8 non-volatile static RAM and a quartz crystal oscillator. They provide date/time functions and a battery backup to maintain timekeeping in the event of power loss. -
Features
The MK48T02B-20 is a low-power SRAM with a real-time clock, watchdog timer, and battery backup switchover circuitry. It has a supply voltage of 4.5V to 5.5V, a battery backup voltage of 2.5V to 13.2V, and a battery life of more than 10 years. It also has a direct replacement for the ST M48Z02, Dallas DS1642, and Samsung KM48C2100. -
Pinout
The MK48T02B-20 is a 28-pin DIP package memory with a 20-year data retention period. It features a built-in lithium power source for backup power, and functions as a timekeeper and event scheduler in electronic devices. -
Manufacturer
The manufacturer of the MK48T02B-20 is STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a range of semiconductor products that are used in various electronic devices and applications. -
Application Field
The MK48T02B-20 is commonly used in applications such as industrial automation, telecommunications equipment, medical devices, and automotive systems. It is also suitable for use in battery-powered devices, network routers, and power meters. This integrated circuit provides reliable timekeeping and battery backup support for a wide range of electronic devices. -
Package
The MK48T02B-20 chip comes in a DIP-24 package, with a non-volatile form factor, and a size of 24.38mm x 13.21mm.
Datasheet PDF
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