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DS1243Y
CMOS Technology
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製造商零件號 # : DS1243Y
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包裝/封裝: EDIP-28
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零件狀態 : Obsolete
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製造商: Analog Devices Inc.
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產品分類 : Real Time Clocks
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DS1243Y 數據表
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詳細說明
The DS1243Y NVSRAM module is a game-changer in data storage solutions. Boasting a versatile 256k x 8 configuration, this device seamlessly combines the speed of SRAM with the non-volatile capabilities of an EEPROM, ensuring that your critical data remains safe and secure even in the face of power outages. With an operating voltage range of 4.75V to 5.5V and a rapid access time of 70ns, the DS1243Y is the perfect choice for applications requiring high performance and reliability
主要特徵
- The DS12V43Y is designed for use in automotive, industrial, and medical applications where data retention is critical
- It provides a reliable solution for storing data that must be retained during power loss or failure
- The device is compatible with most microprocessors and microcontrollers
- A low-power sleep mode allows the device to consume very little power when not in use
應用
- Essential for industrial control
- Secure tamper detection feature
- Perfect for medical equipment
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| Rohs Code | No | Part Life Cycle Code | Transferred |
| Reach Compliance Code | Additional Feature ! | ACCURACY 1 MIN/MONTH @ 25 DEGREE C; 10 YEARS DATA RETENTION; SERIAL 64-BIT PROTOCOL | |
| External Data Bus Width | 8 | Information Access Method | SERIAL, FIXED PROTOCOL |
| Interrupt Capability ! | N | JESD-30 Code | R-PDIP-T28 |
| JESD-609 Code | e0 | Number of Terminals | 28 |
| Number of Timers | On Chip Data RAM Width | 8 | |
| Operating Temperature-Max | 70 °C | Operating Temperature-Min | |
| Package Body Material | PLASTIC/EPOXY | Package Code | DIP |
| Package Equivalence Code | DIP28,.6 | Package Shape | RECTANGULAR |
| Package Style | IN-LINE | Qualification Status ! | Not Qualified |
| RAM (words) | 4096 | Supply Current-Max | 85 mA |
| Supply Voltage-Max | 5.5 V | Supply Voltage-Min | 4.5 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 | 1/100 SECOND | Volatile | NO |
| uPs/uCs/Peripheral ICs Type | TIMER, REAL TIME CLOCK | Manufacturer | Analog Devices Inc. |
| Product Category ! | Real Time Clock | Mounting Style | Through Hole |
| Package / Case | EDIP-28 | RTC Bus Interface | Parallel, Phantom Clock |
| Time Format ! | HH:MM:SS:hh | RTC Memory Size | 8 kB |
| Supply Voltage - Max | 5.5 V | Supply Voltage - Min | 4.5 V |
| Minimum Operating Temperature | 0 C | Maximum Operating Temperature ! | + 70 C |
| Brand | Analog Devices / Maxim Integrated | Function | Calendar, Clock, NV Timekeeping RAM |
| Product Type ! | Real Time Clocks | Series | DS1243Y |
| Subcategory | Clock & Timer ICs |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is DS1243Y?
The DS1243Y is a non-volatile static RAM (NVSRAM) module manufactured by Maxim Integrated. It combines the benefits of both volatile and non-volatile memories, offering data retention even when power is removed. The DS1243Y is commonly used in industrial automation, embedded systems, and battery-backed applications.
How Does DS1243Y Work?
DS1243Y operates as a dual-memory module, featuring a static RAM section for fast read/write operations and a non-volatile EEPROM section for data backup in case of power loss. When power is applied, data is accessed from the faster SRAM portion, and in power-off situations, data transfers between SRAM and EEPROM to maintain non-volatile memory.
How Many Pins does DS1243Y have and What are the Functions of the Pinout Configuration?
The DS1243Y is typically available in a 28-pin EDIP (Extended Dual-In-Line Package) or DIP (Dual-In-Line Package). Key pins include:
- VCC: Power supply pin for the module.
- GND: Ground pin.
- CE: Chip enable for memory access control.
- WE: Write enable for writing data to memory.
- OE: Output enable for reading data from memory.
- DS, AS: Data and address bus connections.
- NC: No connect pins for mechanical stability.
What are the Pros and Cons of DS1243Y?
Pros:
- Data Retention: Maintains data integrity during power interruptions.
- High-Speed Access: Offers fast read/write speeds with the static RAM section.
- Non-Volatile Backup: Utilizes EEPROM for long-term data storage.
- Ease of Use: Functions like a standard SRAM without the need for complex backup circuitry.
- Industry Standard Package: Available in commonly used 28-pin packages for easy integration.
Cons:
- Cost: NVSRAM technology typically comes at a higher cost compared to standard SRAM.
- Complexity: Integrating non-volatile memory requires careful design considerations.
- Power Consumption: Non-volatile functionality may lead to higher power usage compared to standard SRAM.
Are There Any Equivalents/Alternatives to DS1243Y for Recommendation?
- The FM16W08 from Cypress Semiconductor is a similar NVSRAM alternative.
- Alternatives to the DS1243Y include the M48Z08 from STMicroelectronics and the 23LC1024 from Microchip Technology.
