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27C040 Datasheet PDF

The supply current would then be the sum of 2c040. Refer to Programming Characteristics 3. Address to Output Delay. All Ai inputs are held low V. Any byte can be accessed in less than 70 ns, eliminating the need for speed reducing WAIT states on high-performance microprocessor systems.

Product Identification Code electronically identifies the device and manufacturer. Voltage on A9 with Respect to Ground Output float is defined as the point when data is no longer driven.

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Unless accommodated by the system design, these transients may exceed datasheet limits, resulting in device non-conformance. CE to Output Delay. Input AC drive levels are 0. Input Test Waveforms and Measurement Levels. OE may be delayed up to t. Stresses beyond those listed under “Absolute Maximum Ratings” may 27f040 permanent dam- age to the device.

27C EPROM Technical Data

Timing measurement references are 0. This feature is used by industry standard programming equipment to select the proper programming algo- rithms and voltages. AC Characteristics for Read Operation. Atmel’s AT27C has additional features to ensure high quality and efficient production use. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

This capacitor should be positioned as. Programming time is typically only Additionally, to stabilize the supply voltage level on printed circuit boards with large EPROM arrays, a 4.

Integrated Product Identification Code. OE to Output Delay.

At a minimum, a 0. AC Waveforms for Read Operation. This capacitor should be connected between the V. Switching between active and standby conditions via the Chip Enable pin may produce tran- sient voltage datsheet.


Two identifier bytes may be selected. This is a datsaheet rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Search field Part name Part description.

27C (Philips) – 4 Meg Coms Eprom(k X 8)

Typical values for nominal supply voltage. Commercial and Industrial Temperature Ranges. The AT27C requires only one 5V power supply in normal read mode operation. Atmel’s scaled CMOS technology provides low active power consumption, and fast program- ming. F bulk electrolytic capacitor should be utilized, again. The device features two-line control CE, OE to eliminate bus contention in high-speed systems.