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Unless accommodated by the system design, these transients may exceed datasheet limits, resulting in device non-conformance.

Power consumption is typically 8 277c040 in active mode and less than This feature is used by industry standard programming equipment to select the proper programming algo- rithms and voltages.

This capacitor should be positioned as. AC Characteristics for Read Operation. OE may be delayed up to t. Commercial and Industrial Temperature Ranges.

Address to Output Delay. Any byte can be accessed in less than 70 ns, eliminating the need for speed datasheey WAIT states on high-performance microprocessor systems.


This capacitor should be datasheeg between the V. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent dam- age to the device. Input AC drive levels are 0.

The supply current would then be the sum of I. Atmel’s AT27C has additional features to ensure high quality and efficient production use. CE to Output Delay. OE to Output Delay. Voltage on Any Pin with Respect to Ground The Rapid Programming Algorithm reduces the time required to program the part and guaran- tees reliable programming. AC Waveforms for Read Operation. Integrated Product Identification Code.

Timing measurement references are 0. The device features two-line control CE, OE to eliminate bus contention in high-speed vatasheet. F bulk electrolytic capacitor should be utilized, again. Voltage on A9 with Respect to Daasheet Input Test Waveforms and Measurement Levels. Output float is defined as the point when data is no longer driven. The AT27C requires only one 5V power supply in normal read mode operation. Programming time is typically only At a minimum, a 0.


Atmel’s scaled CMOS technology provides low active power consumption, and fast program- ming. Additionally, to stabilize the supply voltage level on printed circuit boards with large EPROM arrays, a 4. Search field Part name Part description. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

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

Typical values for satasheet supply voltage. Product Identification Code electronically identifies the device and manufacturer. 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.

Two identifier bytes may be selected.

27C040 Datasheet PDF

Refer to Programming Characteristics 3. Switching between active and standby conditions via the Chip Enable pin may produce tran- sient voltage excursions.

All Ai inputs are held low V.