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M27V320-120N6 데이터시트(PDF) 8 Page - STMicroelectronics |
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M27V320-120N6 데이터시트(HTML) 8 Page - STMicroelectronics |
8 / 15 page M27V320 8/15 Table 9. Programming Mode DC Characteristics (1) (TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12V ± 0.25V) Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP. Table 10. MARGIN MODE AC Characteristics (1) (TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12V ± 0.25V) Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP. Symbol Parameter Test Condition Min Max Unit ILI Input Leakage Current VIL ≤ VIN ≤ VIH ±10 µA ICC Supply Current 50 mA IPP Program Current E = VIL 50 mA VIL Input Low Voltage –0.3 0.8 V VIH Input High Voltage 2.4 VCC + 0.5 V VOL Output Low Voltage IOL = 2.1mA 0.4 V VOH Output High Voltage TTL IOH = –2.5mA 3.5 V VID A9 Voltage 11.5 12.5 V Symbol Alt Parameter Test Condition Min Max Unit tA9HVPH tAS9 VA9 High to VPP High 2µs tVPHEL tVPS VPP High to Chip Enable Low 2µs tA10HEH tAS10 VA10 High to Chip Enable High (Set) 1µs tA10LEH tAS10 VA10 Low to Chip Enable High (Reset) 1µs tEXA10X tAH10 Chip Enable Transition to VA10 Transition 1µs tEXVPX tVPH Chip Enable Transition to VPP Transition 2µs tVPXA9X tAH9 VPP Transition to VA9 Transition 2µs Programming When delivered, all bits of the M27V320 are in the '1' state. Data is introduced by selectively pro- gramming '0's into the desired bit locations. Al- though only '0's will be programmed, both '1's and '0's can be present in the data word. The M27V320 is in the programming mode when VPP input is at 12.5V, GVPP is at VIH and E is pulsed to VIL. The data to be programmed is applied to 16 bits in par- allel to the data output pins. The levels required for the address and data inputs are TTL. VCC is spec- ified to be 6.25V ± 0.25V. |
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