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The TMS27C128 and TMS27PC128 are 131,072-bit erasable and programmable read-only memories. They have a single 5V power supply, are pin compatible with existing 128K MOS ROMs, PROMs, and EPROMs, have fully TTL compatible inputs/outputs, and feature maximum access/minimum cycle times.
This document describes the features and characteristics of TMS27C210A and TMS27PC210A, which are 65536x16-bit UV erasable and programmable read-only memories. They support a single 5V power supply and are operationally compatible with existing megabit EPROMs. They come in various packages and have TTL compatible inputs/outputs. They feature high-speed SNAP! pulse programming and power-saving CMOS technology. The output buffers are 3-state. No pullup resistors are required. They have low power dissipation and optional temperature range options.
The TMS27C240 is a 262144-bit 16-bit (4194304-bit) ultraviolet-light erasable, electrically programmable read-only memory (EPROM). The TMS27PC240 is a 262144-bit 16-bit (4194304-bit) one-time programmable (OTP) electrically programmable read-only memory (PROM). 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 74 series TTL circuits without the use of external pull-up resistors. Each output can drive one 74 series TTL circuit.
This data sheet introduces TMS27C256 series and TMS27PC256 series 32768 bits (262144 bits), ultraviolet (UV) light erasable, electrically programmable read-only memories (EPROMs) and programmable read-only memories (PROMs).
The TMS27C020 series are 262144 by 8-bit (2097152-bit), ultraviolet (UV) light erasable, electrically programmable read-only memories (EPROMs). The TMS27PC020 series are one-time programmable (OTP) electrically programmable read-only memories (PROMs). The product has a storage capacity of 262144 by 8 bits, suitable for microprocessor-based systems, and features high-speed SNAP! pulse programming and power saving CMOS technology.
TMS27C512 is a 65536 by 8-bit (524288-bit) ultraviolet (UV) light erasable electrically programmable read-only memory (EPROM). The TMS27PC512 is a 65536 by 8-bit (524288-bit) one-time programmable (OTP) electrically programmable read-only memory (PROM).
This document is the manual of 262144 by 8-bit (2097152-bit)，ultraviolet (UV) light erasable, electrically programmable read-only memories (EPROMs) products.
TMS27C020 is a 262144 by 8-bit UV erasable EPROM, and TMS27PC020 is a one-time programmable EPROM. They feature high-speed programming, low power consumption, and compatibility with existing megabit EPROMs.
TMS27C128 and TMS27PC128 are 131072-bit ultraviolet-light erasable and one-time electrically programmable read-only memories. They have various features, such as 16K×8 organization, single 5V power supply, pin compatibility with existing 128K MOS ROMs, PROMs, and EPROMs, full TTL compatibility, maximum access/minimum cycle times of 120ns, etc.
The TMS27C256 is a 32768-bit (262144-bit) ultraviolet (UV) light erasable, electrically programmable read-only memory (EPROM). The TMS27PC256 is a 32768-bit (262144-bit) one-time programmable (OTP) electrically programmable read-only memory (PROM).
