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Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent dam- age to the device.

27C040 – 27C040 4096K EPROM Datasheet

Unless accommodated by the system design, these transients may exceed datasheet limits, resulting in device non-conformance. Product Identification Code electronically identifies the device and manufacturer.

AC Characteristics for Read Operation. Switching between active and standby conditions via the Chip Enable pin may produce tran- sient voltage excursions. CE to Output Delay. Power consumption is typically 8 mA in active mode and less than 2c7040 Voltage on Any Pin with Respect to Ground Atmel’s AT27C has additional features to ensure high quality and efficient production use.


Additionally, to stabilize the supply voltage level on printed circuit boards with large EPROM arrays, a 4. Timing measurement references are 0. The supply current would then be the sum of I. OE may be delayed up to t.

All Ai inputs are held low V. This capacitor should be connected between the V. Programming time is typically only The AT27C requires only one 5V power supply in normal read mode operation. OE to Output Delay. Commercial and Industrial Temperature Ranges. AC Waveforms for Read Operation. Search field Part name Part description.

27d040 bulk electrolytic capacitor should be utilized, again.

27C EPROM Datasheet

Atmel’s scaled CMOS technology provides low active power consumption, and fast program- ming. Integrated Product Identification Code. Refer to Programming Characteristics 3. Input Test Waveforms and Measurement Levels. Any byte can be accessed in less than 70 ns, eliminating the need for speed reducing WAIT states on high-performance microprocessor systems.

Voltage on A9 with Respect to Ground Typical values for nominal supply voltage. Two identifier bytes may be selected. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Address to Output Delay. This feature is used by industry standard programming equipment to select the proper programming algo- rithms and voltages.


This capacitor should be positioned as.

The device features two-line control CE, OE to eliminate bus contention in high-speed systems. Input AC drive levels are 0. At a minimum, a 0. This is a stress 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.

Output float is defined as the point when data is no longer driven.

The Rapid Programming Algorithm reduces the time required to program the part and guaran- tees reliable programming.