SMJ27C51220JM - Brand New Texas Instruments IC Chips

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In Stock: 158, Ready for Immediate Shipping
Category:IC Chips
Chipdatas Part No.:CD87-SMJ27C51220JM
Manufacturer Part No.:SMJ27C51220JM
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  • Description

    The SMJ27C512 is a set of 65536 by 8-bit (524,288-bit), ultraviolet (UV) light erasable, electrically programmable read-only memories. These devices are fabricated using power-saving CMOS technology for high speed and simple interface with MOS and bipolar circuits. All inputs (including program data inputs can be driven by Series 54 TTL circuits without the use of external pullup resistors. Each output can drive one Series 54 TTL circuit without external resistors. The data outputs are 3-state for connecting multiple devices to a common bus. The SMJ27C512 is pin-compatible with existing 28-pin 512K ROMs and EPROMs.

    Because this EPROM operates from a single 5V supply (in the read mode), it is ideal for use in microprocessor-based systems. One other supply (13V) is needed for programming. All programming signals are TTL level. This device is programmable by the SNAP! Pulse programming algorithm. The SNAP! Pulse programming algorithm uses a VPP of 13V and a VCC of 6.5V for a nominal programming time of seven seconds. For programming outside the system, existing EPROM programmers can be used. Locations may be programmed singly, in blocks, or at random.

    Specifications and features

    • Organized 65,536 x 8
    • High-reliability MIL-PRF-38535 processing
    • Single +5V ±10% power supply
    • Pin-compatible with existing 512K read-only memories (ROMs) and electrically programmable ROMs (EPROMs)
    • All inputs/outputs fully TTL compatible
    • Power-saving CMOS technology
    • Very high-speed SNAP! Pulse Programming
    • 3-state output buffers
    • 400mV minimum DC noise immunity with standard TTL loads
    • Latchup immunity of 250mA on all input and output lines
    • Low power dissipation (CMOS input levels)
    • Active - 193mW (MAX)
    • Standby - 1.7mW (MAX)

    Application Scenarios

    This SMJ27C512 model can be used in various microprocessor-based systems that require high-speed and reliable read-only memory. It is especially suitable for applications where power-saving is a priority and where pin-compatibility with existing 512K ROMs and EPROMs is necessary.


    • High-speed operation
    • Simple interface with MOS and bipolar circuits
    • Power-saving CMOS technology
    • TTL compatibility for easy integration with existing systems
    • Pin-compatible with existing 512K ROMs and EPROMs
    • Requires an additional 13V supply for programming
    • Need to use EPROM programmers for programming outside the system
  • Similar parts: 430483 , Click to view
    Attributes Value
    Category IC Chips
    Manufacturer Texas Instruments
    Product Category IC Chips
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Additional Information
  • Datasheet: Download SMJ27C51220JM
  • Chipdatas Part: CD87-SMJ27C51220JM
  • Warehouse: China, Hong Kong
  • Dispatch: Within 24 hours
  • Free Shipping: Yes
  • Prority Shipping: Yes, 3-5 days
  • Last Updated: 2024/04/23 22:09 +0800
    • Full Refund if you don't receive your order
    • Full or Partial Refund , If the item is not as described
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