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UPD2149-1 - 4096 (1024 x 4) BIT STATIC RAM

Download the UPD2149-1 datasheet PDF. This datasheet also covers the UPD2149 variant, as both devices belong to the same 4096 (1024 x 4) bit static ram family and are provided as variant models within a single manufacturer datasheet.

Key Features

  • associated with non-clocked static memories. The JlPD2149 is encapsulated in an 18-pin ceramic package configured with the industry standard pinout. It is directly TTL compatible in all respects: inputs, outputs, and a single +5V supply. The data is read out non-destructively and has the same polarity as the input data. FEATU RES.
  • Completely Static Memory - No Clock or Timing Strobe Required.
  • Equal Access and Cycle Times, Faster Chip Select Access.
  • Single +5V Supply.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UPD2149-NEC.pdf) that lists specifications for multiple related part numbers.

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UPD2364A 8192 x 8-Bit Mask Programmable NMOS ROM NEC Electronics

Other Datasheets by NEC (now Renesas Electronics)

Part Number Description
UPD2149-2 4096 (1024 x 4) BIT STATIC RAM
UPD2149 4096 (1024 x 4) BIT STATIC RAM
UPD2147 4096 x 1 BIT STATIC RAMI
UPD2147-2 4096 x 1 BIT STATIC RAMI
UPD2147-3 4096 x 1 BIT STATIC RAMI

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
NEe Microcomputers, Inc. NEe JJ. PD2149 JJ. PD2149-1 po PD2149-2 ~rn~[~~~~illrnW 4096 (1024x4) BIT STATIC RAM DESCR IPTION The JlPD2149 is a 4096-bit static Random Access Memory organized as 1024 words bv 4-bits. Using a scaled NMOS technology, it incorporates an innovative design approach which provides the ease-of-use features associated with non-clocked static memories. The JlPD2149 is encapsulated in an 18-pin ceramic package configured with the industry standard pinout. It is directly TTL compatible in all respects: inputs, outputs, and a single +5V supply. The data is read out non-destructively and has the same polarity as the input data.