DS1225AD-200

8kx8bit configuration
2,903 有效庫存

DS1225AD-200

有效庫存2,903

8kx8bit configuration

  • 製造商零件號 # : DS1225AD-200

  • 包裝/封裝: EDIP-28

  • 製造商: Analog Devices

  • 產品分類 : Memory

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DS1225AD-200 數據表
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詳細說明

Non-Volatile Sram, 64Kbit, 200Ns, Edip28; Memory Type:Sram; Memory Size:64Kbit; Nvram Memory Configuration:8K X 8Bit; Ic Interface Type:-; Access Time:200Ns; Memory Case Style:-; No. Of Pins:28Pins; Supply Voltage Min:4.5V; Msl:- Rohs Compliant: Yes |Maxim Integrated/analog Devices DS1225AD-200+

主要特徵

  • 10 years minimum data retention in the absence of external power
  • Data is automatically protected during power loss
  • Directly replaces 8k x 8 volatile static RAM or EEPROM
  • Unlimited write cycles
  • Low-power CMOS
  • JEDEC standard 28-pin DIP package
  • Read and write access times of 70ns
  • Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time
  • Full ±10% VCC operating range (DS1225AD)
  • Optional ±5% VCC operating range (DS1225AB)
  • Optional industrial temperature range of -40°C to +85°C, designated IND

應用

  • Embedded systems
  • Data storage in industrial equipment
  • Real-time clocks
  • Battery backup applications
  • Automotive electronics
  • Medical devices
  • Telecommunications systems
  • Memory backup
  • Security systems
  • Consumer electronics

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。

Product Category ! NVRAM Package / Case EDIP-28
Interface Type Parallel Memory Size ! 64 kbit
Organization 8 k x 8 Data Bus Width 8 bit
Access Time 200 ns Supply Voltage - Max 5.5 V
Supply Voltage - Min 4.5 V Operating Supply Current 75 mA
Minimum Operating Temperature 0 C Maximum Operating Temperature ! + 70 C
Series DS1225AD Brand Analog Devices / Maxim Integrated
Height 9.4 mm Length 39.12 mm
Mounting Style Through Hole Operating Supply Voltage ! 5 V
Product Type ! NVRAM Factory Pack Quantity 12
Subcategory Memory & Data Storage Type NVSRAM
Width 18.29 mm Part # Aliases DS1225AD

常見問題解答

What is DS1225AD-200?

The DS1225AD-200 is a non-volatile SRAM (NVSRAM) memory device manufactured by Maxim Integrated. It combines the features of a standard SRAM with a non-volatile element to retain data even when power is removed, making it suitable for applications requiring data persistence and fast read/write access.

How Does DS1225AD-200 Work?

The DS1225AD-200 utilizes a CMOS SRAM array backed by a non-volatile lithium energy source. When power is applied, the device operates like a standard SRAM, allowing fast read and write operations. When power is removed, the non-volatile energy source retains the data, enabling the device to function as a non-volatile memory, ensuring data persistence during power cycles.

How Many Pins does DS1225AD-200 have and What are the Functions of the Pinout Configuration?

The DS1225AD-200 is typically available in a 28-pin DIP (Dual Inline Package) or 32-pin PLCC (Plastic Leaded Chip Carrier) package. The pinout configuration for the 28-pin DIP package includes:

  • CE1, CE2: Chip Enable inputs for two independent chip enables.
  • WE: Write Enable input for write operations.
  • OE: Output Enable input for read operations.
  • NC: No connect pins.
  • DS0-DS7: Data input/output pins.
  • AS: Address Strobe input for address latch.
  • A0-A13: Address input pins.
  • VCC, GND: Power supply pins.
  • NC: No connect pin.
  • NV: Non-volatile power supply pin.

What are the Pros and Cons of DS1225AD-200?

Pros:

  • Data Persistence: Retains data during power loss, eliminating the need for external backup circuitry.
  • Fast Access: Provides fast read and write access similar to standard SRAM devices.
  • No Battery Required: Utilizes a non-volatile lithium energy source, eliminating the need for an external battery.
  • Durable Storage: Offers high reliability and long data retention, suitable for critical data storage applications.

Cons:

  • Limited Endurance: Non-volatile elements may have limited write endurance compared to standard SRAM.
  • Complex Pinout: The device may have a relatively complex pinout due to the additional non-volatile features.

Are There Any Equivalents/Alternatives to DS1225AD-200 for Recommendation?

  • The M48Z02 from STMicroelectronics is a similar NVSRAM device with non-volatile storage and fast access times.
  • Alternatives to the DS1225AD-200 include the FM18W08 from Cypress Semiconductor and the CAT24C32 from ON Semiconductor.

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