27C512 데이터 시트보기 (PDF) - STMicroelectronics

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27C512

512 Kbit (64Kb x8) UV EPROM and OTP EPROM

STMicroelectronics 

M27C512

Table 10. MARGIN MODE AC Characteristics (1)

(TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12.75V ± 0.25V)

Symbol

Alt

Parameter

Test Condition Min

tA9HVPH

tAS9 VA9 High to VPP High

2

tVPHEL

tVPS VPP High to Chip Enable Low

2

tA10 HEH

tAS10 VA10 High to Chip Enable High (Set)

1

tA10LE H

tAS10 VA10 Low to Chip Enable High (Reset)

1

tEXA10X

tAH10 Chip Enable Transition to VA10 Transition

1

tEXVPX

tVPH Chip Enable Transition to VPP Transition

2

tVPXA9X

tAH9 VPP Transition to VA9 Transition

2

Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.

Max

Unit

µs

µs

µs

µs

µs

µs

µs

Figure 6. MARGIN MODE AC Waveforms

VCC

A8

A9

GVPP

E

A10 Set

tA9HVPH

tVPXA9X

tVPHEL

tEXVPX

tA10HEH

tEXA10X

A10 Reset

Note: A8 High level = 5V; A9 High level = 12V.

tA10LEH

AI00736B

8/18

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