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Atmel’s scaled CMOS technology provides low active power consumption, and fast program- ming. AC Characteristics for Read Operation. All Datashewt inputs are held low V. This capacitor should be connected between the V. Additionally, to stabilize the supply voltage level on datashete circuit boards with large EPROM arrays, a 4.

Address to Output Delay. The Rapid Programming Algorithm reduces the time required to program the part and guaran- tees reliable programming. Product Identification Code electronically identifies the device and manufacturer.

Atmel’s AT27C has additional features to ensure high quality and efficient production use. Search field Part name Part description. Switching between active and standby conditions via the Chip Enable pin may produce tran- sient voltage excursions. This capacitor should be positioned as.


Commercial and Industrial Temperature Ranges. 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.

AC Waveforms for Read Operation. Power consumption is typically 8 mA in active mode and less than Output float is defined as the point when data is no longer driven.

Input AC drive levels are 0. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent dam- dataseet to the device. The device features two-line control CE, OE to eliminate bus contention in high-speed systems.

Timing measurement references are 0.

27C Datasheet(PDF) – NXP Semiconductors

Voltage on Any Pin with Respect to Ground Input Test Waveforms and Measurement Levels. At a minimum, a 0. OE may be delayed up to t. Typical values for nominal supply voltage.

27C040 – 27C040 4096K EPROM Datasheet

This feature is used by industry standard programming equipment to select the proper programming algo- rithms and voltages. Two identifier bytes may be selected.


CE to Output Delay.

The supply current would then be the sum of I. Voltage on A9 with Respect to Ground Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Programming time is typically only Unless accommodated by the system design, these transients may exceed datasheet limits, resulting in device non-conformance. Integrated Product Identification Code. F bulk electrolytic capacitor should be utilized, again.

Any byte can be accessed in less than 70 ns, eliminating the need for speed reducing WAIT states on high-performance microprocessor systems. The AT27C requires only one 5V power supply in normal read mode operation.

OE to Output Delay. Refer to Programming Characteristics 3.