SMJ27C040 524288 BY 8-BIT UV ERASABLE PROGRAMMABLE READ-ONLY MEMORY

SGMS046B - NOVEMBER 1992 - REVISED SEPTEMBER 1997

features

• Organization...524288 by 8 Bits
• Single 5-V Power Supply
• Industry Standard 32-Pin Dual-In-line Package
• All Inputs/Outputs Fully TTL Compatible
• Static Operation (No Clocks, No Refresh)
• Max Access/Min Cycle Time
• 8-Bit Output For Use in Microprocessor-Based Systems
• Power-Saving CMOS Technology
• 3-State Output Buffers
• 400-mV DC Assured Noise Immunity With Standard TTL Loads
• Latchup Immunity of 250 mA on All Input and Output Pins
• No Pullup Resistors Required
• Low Power Dissipation (V_CC = 5.5 V)
  • Active...385 mW Worst Case
  • Standby...0.55 mW Worst Case (CMOS-Input Levels)
• Military Operating Temperature Range - 55°C to 125°C

description

The SMJ27C040 is a set of 4194304-bit, ultraviolet-light erasable, electrically programmable read-only memories (EPROMs).

These devices are fabricated using 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. 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 SMJ27C040 is offered in a 32-pin 600-mil dual-in-line ceramic package (J suffix) rated for operation from -55°C to 125°C.

Since this EPROM operates from a single 5-V supply (in the read mode), it is ideal for use in microprocessor-based systems. One other (13-V) supply is needed for programming. All programming signals are TTL level. For programming outside the system, existing EPROM programmers can be used.

View more information about generic part numbers:SMJ27C040

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