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M87C257-15F1TR Datasheet(PDF) 11 Page - STMicroelectronics |
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M87C257-15F1TR Datasheet(HTML) 11 Page - STMicroelectronics |
11 / 22 page M87C257 Maximum rating 11/22 3 Maximum rating Stressing the device above the rating listed in the Absolute Maximum Ratings table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. 1. X = VIH or VIL, VID = 12V ± 0.5V. Table 2. Absolute maximum ratings Symbol Parameter Value Unit TA Ambient Operating Temperature(1) 1. Depends on range. –40 to 125 °C TBIAS Temperature Under Bias –50 to 125 °C TSTG Storage Temperature –65 to 150 °C VIO (2) 2. Minimum DC voltage on Input or Output is –0.5V with possible undershoot to –2.0V for a period less than 20ns. Maximum DC voltage on Output is VCC +0.5V with possible overshoot to VCC +2V for a period less than 20ns. Input or Output Voltage (except A9) –2 to 7 V VCC Supply Voltage –2 to 7 V VA9 (2) A9 Voltage –2 to 13.5 V VPP Program Supply Voltage –2 to 14 V Table 3. Operating modes Mode E G A9 ASVPP Q7-Q0 Read (Latched Address) VIL VIL XVIL Data Out Read (Applied Address) VIL VIL XVIH Data Out Output Disable VIL VIH XX Hi-Z Program VIL Pulse VIH XVPP Data In Verify VIH VIL XVPP Data Out Program Inhibit VIH VIH XVPP Hi-Z Standby VIH XX X Hi-Z Electronic Signature VIL VIL VID VIL Codes Table 4. Electronic signature Identifier A0 Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0 Hex Data Manufacturer’s Code VIL 0 010000 0 20h Device Code VIH 1 000000 0 80h |
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