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AT27C256R-70RI Datasheet(PDF) 3 Page - ATMEL Corporation |
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AT27C256R-70RI Datasheet(HTML) 3 Page - ATMEL Corporation |
3 / 9 page Block Diagram Temperature Under Bias ................ -55°C to +125°C Storage Temperature...................... -65°C to +150°C Voltage on Any Pin with Respect to Ground......................... -2.0V to +7.0V (1) Voltage on A9 with Respect to Ground ...................... -2.0V to +14.0V (1) VPP Supply Voltage with Respect to Ground....................... -2.0V to +14.0V (1) *NOTICE: Stresses beyond those listed under “Absolute Maxi- mum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indi- cated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Note: 1. Minimum voltage is -0.6V dc which may undershoot to -2.0V for pulses of less than 20 ns. Maximum out- put pin voltage is VCC + 0.75V dc which may over- shoot to +7.0V for pulses of less than 20 ns. Absolute Maximum Ratings* Operating Modes Mode \ Pin CE OE Ai VPP Outputs Read VIL VIL Ai VCC DOUT Output Disable VIL VIH X (1) VCC High Z Standby VIH X (1) X (1) VCC High Z Rapid Program (2) VIL VIH Ai VPP DIN PGM Verify (2) X (1) VIL Ai VPP DOUT Optional PGM Verify (2) VIL VIL Ai VCC DOUT PGM Inhibit (2) VIH VIH X (1) VPP High Z Product Identification (4) VIL VIL A9 = VH (3) A0 = VIH or VIL A1 - A14 = VIL VCC Identification Code Notes: 1. X can be VIL or VIH. 2. Refer to Programming characteristics. 3. VH = 12.0 ± 0.5V. 4. Two identifier bytes may be selected. All Ai inputs are held low (VIL), except A9 which is set to VH and A0 which is toggled low (VIL) to select the Manufacturer’s Identi- fication byte and high (VIH) to select the Device Code byte. AT27C256R 3-127 |
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