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Any byte can be accessed in less than 70 ns, eliminating the need for speed reducing WAIT states on high-performance microprocessor systems. Atmel’s scaled CMOS technology provides low active power consumption, and fast program- ming.
Timing measurement references are 0. Power consumption is typically 8 mA in active mode and less than Typical values for nominal supply voltage. Search field Part name Part description. Voltage on A9 with Respect to Datashedt The supply current would then be the sum of I. F bulk electrolytic capacitor should be utilized, again.
The Rapid Programming Algorithm reduces the time required to program the part and guaran- tees reliable programming. Two identifier bytes may be selected.
27C (Philips) – 4 Meg Coms Eprom(k X 8)
Atmel’s AT27C has additional features to ensure high quality and efficient production use. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent dam- age to the device. All Ai inputs are held low V. Switching between active and standby conditions via the Chip Enable pin may produce tran- sient voltage excursions.
27C PLCC EPROM Datasheet
Voltage on Any Pin with Respect to Ground Input AC drive levels are 0. AC Characteristics for Read Operation. CE to Output Delay. Commercial and Industrial Temperature Ranges. The AT27C requires only one 5V power supply in normal read mode operation. At a minimum, a 0. Input Test Waveforms and Measurement Levels. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Output float is defined as the point when data is no longer driven.
27C040 – 27C040 4096K EPROM Datasheet
Unless accommodated by the system design, these transients may exceed datasheet limits, resulting in device non-conformance. Address to Output Delay.
This is a stress rating only dagasheet 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. Additionally, to stabilize the supply voltage level on printed circuit boards with large EPROM arrays, a 4.
Programming time is typically only Refer to Programming Characteristics 3. OE to Output Delay. The device features two-line control CE, OE to eliminate bus contention in high-speed systems. This feature is used by industry standard programming equipment to select the proper programming algo- rithms and voltages.
This capacitor should be positioned as. OE may be delayed up to t. Integrated Product Identification Code. This capacitor should be connected between the V. Product Identification Code electronically identifies the device and manufacturer.