M27C512-80XN6 查看數據表（PDF） - STMicroelectronics

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M27C512-80XN6

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

STMicroelectronics 

Table 12. Programming Mode AC Characteristics

Symbol

Alt

Parameter

Test Condition (1,2) Min

tAVEL

tAS Address Valid to Chip Enable Low

2

tQVEL

tDS Input Valid to Chip Enable Low

2

tVCHEL

tVCS VCC High to Chip Enable Low

2

tVPHEL

tOES VPP High to Chip Enable Low

2

tVPLVPH

tPRT VPP Rise Time

50

tELEH

tPW Chip Enable Program Pulse Width (Initial)

95

tEHQX

tDH Chip Enable High to Input Transition

2

tEHVPX

tOEH Chip Enable High to VPP Transition

2

tVPLEL

tVR VPP Low to Chip Enable Low

2

tELQV

tDV Chip Enable Low to Output Valid

tEHQZ (3)

tDFP Chip Enable High to Output Hi-Z

0

tEHAX

tAH Chip Enable High to Address Transition

0

Note: 1. TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12.75V ± 0.25V

2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.

3. Sampled only, not 100% tested.

Figure 11. Programming and Verify Modes AC Waveforms

M27C512

Max Unit

µs

µs

µs

µs

ns

105

µs

µs

µs

µs

1

µs

130

ns

ns

A0-A15

Q0-Q7

VCC

GVPP

E

tAVEL

DATA IN

tQVEL

VALID

tEHQX

tVCHEL

tVPHEL

tEHVPX

tVPLEL

tELEH

PROGRAM

DATA OUT

tELQV

tEHAX

tEHQZ

VERIFY

AI00737

15/22

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