AM27C2048-90DC AMD 2 Megabit (128 K x 16-Bit) CMOS EPROM – 1 Pcs

Fast access time Speed options as fast ns s Low power consumption 100 µA maximum CMOS standby current s JEDEC-approved pinout Plug-in upgrade of 1 Mbit EPROM 40-pin DIP/PDIP 44-pin PLCC s Single +5 V power supply s ±10% power supply tolerance standard s 100% Flashrite programming Typical programming time of 16 seconds s Latch-up protected 100 mA from V to VCC Versatile features for simple interfacing Both CMOS and TTL input/output compatibility Two line control functions s High noise immunity

The a 2 Mbit, ultraviolet erasable programmable read-only memory. It is organized 128 K words, operates from a single +5 V supply, has a static standby mode, and features fast single address location programming. The Am27C2048 is ideal for use in 16-bit microprocessor systems. The device is available in windowed ceramic DIP packages, and plastic one time programmable (OTP) PDIP and PLCC packages. Data can be typically accessed in less than 55 ns, allowing high-performance microprocessors to operate without any WAIT states. The device offers separate Output Enable (OE#) and Chip Enable (CE#) controls, thus eliminating bus contention in a multiple bus microprocessor system. AMD’s CMOS process technology provides high speed, low power, and high noise immunity. Typical power consumption is only mW in active mode, and µW in standby mode. All signals are TTL levels, including programming signals. Bit locations may be programmed singly, in blocks, or at random. The device supports AMD’s Flashrite programming algorithm (100 µs pulses), resulting in a typical programming time of 16 seconds.

VCC VSS VPP OE# CE# PGM# Output Enable Chip Enable and Prog Logic Y Decoder A0­A16 Address Inputs Output Buffers Data Outputs DQ0­DQ15