M27C512 데이터 시트보기 (PDF) - STMicroelectronics

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M27C512

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

STMicroelectronics 

M27C512

Table 9. Read Mode AC Characteristics

M27C512

Symbol Alt

Parameter

Test Condition (1)

-90

-10

-12

-15/-20/-25 Unit

Min Max Min Max Min Max Min Max

tAVQV

tACC

Address Valid to

Output Valid

E = VIL, G = VIL

90

100

120

150 ns

tELQV

tCE

Chip Enable Low to

Output Valid

G = VIL

90

100

120

150 ns

tGLQV

tOE

Output Enable Low

to Output Valid

E = VIL

40

40

50

60 ns

tEHQZ (2)

tDF

Chip Enable High

to Output Hi-Z

G = VIL

0 30 0 30 0 40 0 50 ns

tGHQZ (2)

tDF

Output Enable

High to Output Hi-Z

E = VIL

0 30 0 30 0 40 0 50 ns

tAXQX

tOH

Address Transition

to Output Transition

E = VIL, G = VIL

0

0

0

0

ns

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

2. Sampled only, not 100% tested.

Figure 9. Read Mode AC Waveforms

A0-A15

E

G

Q0-Q7

VALID

tAVQV

tGLQV

tELQV

tAXQX

VALID

tEHQZ

tGHQZ

Hi-Z

AI00735B

12/22

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