M27W256-80N6TR STMicroelectronics, M27W256-80N6TR Datasheet
M27W256-80N6TR
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M27W256-80N6TR Summary of contents
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LOW VOLTAGE in READ OPERATION READ ACCESS TIME: – 80ns 3.0 to 3.6V CC – 100ns 2.7 to 3.6V CC BYTE-WIDE or WORD-WIDE CONFIGURABLE 4 Mbit MASK ROM REPLACEMENT LOW POWER ...
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... Q15A–1 pin is used for Q15 Data Output. When the BYTEV ganisation is selected and the Q15A–1 pin is used for the Address Input A–1. When the memory is logically regarded as 16 bit wide, but read in the Byte-wide organisation, then with A– lower 8 bits of the 16 bit data are selected and with A– ...
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... 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 condi- tions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant qual- ity documents. ...
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M27W400 Table 5. AC Measurement Conditions Input Rise and Fall Times Input Pulse Voltages Input and Output Timing Ref. Voltages Figure 3. Testing Input Output Waveform High Speed 3V 0V Standard 2.4V 0.4V (1) Table 6. Capacitance (T A Symbol ...
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... READ line from the system control bus. This ensures that all deselect- ed memory devices are in their low power standby mode and that the output pins are only active when data is required from a particular memory device ...
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M27W400 Table 8. Read Mode AC Characteristics ( °C or – ° Symbol Alt Parameter Address Valid to Output t t AVQV ACC Valid BYTE High to Output t t BHQV ST ...
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Figure 5. Word-Wide Read Mode AC Waveforms A0-A17 E G Q0-Q15 Note: BYTEV = Figure 6. Byte-Wide Read Mode AC Waveforms A–1,A0-A17 E G Q0-Q7 Note: BYTEV = V PP IL. VALID tAVQV tGLQV tELQV VALID ...
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M27W400 Figure 7. BYTE Transition AC Waveforms A0-A17 A–1 BYTEV PP Q0-Q7 Q8-Q15 Note: Chip Enable (E) and Output Enable ( Table 9. Programming Mode DC Characteristics ( ° 6.25V ± 0.25V ...
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Table 10. Programming Mode AC Characteristics ( ° 6.25V ± 0.25V Symbol Alt t t Address Valid to Chip Enable Low AVEL Input Valid to Chip Enable Low QVEL DS ...
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... A0 from V other address lines must be held at V Electronic Signature mode. Byte 0 ( code and byte 1 ( code. For the STMicroelectronics M27W400, these two identifier bytes are given in Table 4 and AI03600 can be read-out on outputs Q7 to Q0. ERASURE OPERATION (applies to UV EPROM) ...
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... This speed also guarantees 80ns access time For Ceramic Package please contact our Sales Office. For a list of available options (Speed, Package, etc...) or for further information on any aspect of this de- vice, please contact the STMicroelectronics Sales Office nearest to you. Table 1. Revision History Date ...
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M27W400 Table 12. FDIP40W - 40 lead Ceramic Frit-seal DIP with window, Package Mechanical Data Symb Typ 1. 48.26 E 15. 2.54 ea. 14. 8.13 N ...
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Table 13. PDIP40 - 40 pin Plastic DIP, 600 mils width, Package Mechanical Data Symb Typ A 4. 48. 2.54 ea. 15. Figure 11. PDIP40 ...
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M27W400 Table 14. PLCC44 - 44 lead Plastic Leaded Chip Carrier, Package Mechanical Data Symb Typ 1. 0. Figure 12. PLCC44 - 44 lead ...
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... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics ...