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MSM81C55-5RS The OKI MSM81C55-5RS is a 2k-bit (256 Bytes) static RAM with parallel I/O ports and a timer. It features a maximum access time of 400 ns and operates on a single 3 to 6V power supply.
Mfr Part #:

MSM81C55-5RS

Available from 2 distributors
Mfr Name: OKI
OKI
The OKI MSM81C55-5RS is a 2k-bit (256 Bytes) static RAM with parallel I/O ports and a timer. It features a maximum access time of 400 ns and operates on a single 3 to 6V power supply.
✓ Total Stock: 161 pcs

MSM81C55-5RS Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
151 pcs
On Request
151 pcs On Request 1 On Request On Request 06+04+ On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
10 pcs
On Request
10 pcs On Request 1 On Request On Request 06+04+ On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

MSM81C55-5RS Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Access Time
Mounting Type
Operating Temperature
Package / Case
Power Dissipation
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MSM81C55-5RS Description

Short technical summary and product information.

The OKI MSM81C55-5RS is a high-speed, low-power static RAM device utilizing silicon gate CMOS technology. It offers 256 words x 8 bits (2048 bits) of RAM, making it suitable for various memory applications.

 

This component features two 8-bit and one 6-bit programmable I/O ports, along with a 14-bit programmable counter/timer. It has a maximum access time of 400 ns and operates on a single power supply ranging from 3V to 6V. The device is TTL compatible and maintains RAM data at 2V.

 

The MSM81C55-5RS is available in multiple package options, including a 40-pin Plastic DIP, a 44-pin Plastic QFJ, and a 44-pin Plastic QFP. Its static operation and direct interface capabilities with systems like the MSM80C85AH make it a versatile choice for embedded systems and data storage needs.

MSM81C55-5RS Quick Information

Product Type: Static RAM
Series: MSM81C55
Canonical Name: OKI MSM81C55-5RS 2k-bit Static RAM with Parallel I/O Ports and Timer
Subcategory: Memory

MSM81C55-5RS Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MSM81C55-5RS Features

  • 2048-bit static RAM with I/O and timer.
  • Maximum access time of 400 ns.
  • Single power supply from 3V to 6V.
  • Features two 8-bit and one 6-bit I/O ports.
  • Available in DIP, QFJ, and QFP packages.

MSM81C55-5RS Applications

  • Ideal for embedded microcontroller memory expansion.
  • Used in industrial control system peripheral integration.
  • Suitable for legacy hardware replacement and upgrade.
  • Battery-powered devices requiring low standby current
  • Automotive instrumentation with wide temperature tolerance

MSM81C55-5RS FAQs

5 frequently asked questions generated from this part’s specifications.
What is the RAM size of the MSM81C55-5RS?

The MSM81C55-5RS has a 2048-bit static RAM, equivalent to 256 Bytes.

What is the maximum access time for the MSM81C55-5RS?

The maximum access time for the MSM81C55-5RS is 400 ns.

What is the operating voltage range for the MSM81C55-5RS?

The MSM81C55-5RS operates on a single power supply from 3V to 6V.

What types of I/O ports does the MSM81C55-5RS have?

The MSM81C55-5RS features two 8-bit I/O ports and one 6-bit I/O port.

What package options are available for the MSM81C55-5RS?

The MSM81C55-5RS is available in 40-pin Plastic DIP, 44-pin Plastic QFJ, and 44-pin Plastic QFP packages.

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