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M27V102-150F6TR Datasheet(PDF) 6 Page - STMicroelectronics |
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M27V102-150F6TR Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 15 page Symbol Alt Parameter Test Condition M27V102 Unit -120 -150 -200 Min Max Min Max Min Max tAVQV tACC Address Valid to Output Valid E = VIL,G = VIL 120 150 200 ns tELQV tCE Chip Enable Low to Output Valid G = VIL 120 150 200 ns tGLQV tOE Output Enable Low to Output Valid E = VIL 50 60 90 ns tEHQZ (2) tDF Chip Enable High to Output Hi-Z G = VIL 040 0 50 070 ns tGHQZ (2) tDF Output Enable High to Output Hi-Z E = VIL 040 0 50 070 ns tAXQX tOH Address Transition to Output Transition E= VIL,G = VIL 000 ns Notes: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously with or after VPP. 2. Sampled only, not 100% tested. Table 8B. Read Mode AC Characteristics (1) (TA = 0 to 70 °C or –40 to 85 °C; VCC = 3.3V ± 10%; VPP =VCC) AI00705B tAXQX tEHQZ A0-A15 E G Q0-Q15 tAVQV tGHQZ tGLQV tELQV VALID Hi-Z VALID Figure 5. Read Mode AC Waveforms Programming The M27V102 has been designed to be fully com- patible with the M27C1024 and has the same elecronic signature. As a result the M27V102 can be programmed as the M27C1024 on the same programming equipments applying 12.75V on VPP and 6.25V on VCC by the use of the same PRESTO II algorithm. When delivered (and after each ’1’s erasure for UV EPROM), all bits of the M27V102 are in the ’1’ state. Data is introduced by selectively programming ’0’s into the desired bit locations. Although only ’0’s will be programmed, both ’1’s and ’0’s can be present in the data word. The only way to change a ’0’ to a ’1’ is by die exposure to ultraviolet light (UV EPROM). The M27V102 is in the programming mode when VPP input is at 12.75V, E is at VIL and P is pulsed to VIL. The data to be programmed is applied to 16 bits in parallel to the data output pins. The levels required for the address and data inputs are TTL. VCC is specified to be 6.25V ± 0.25V. 6/15 M27V102 |
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