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M27W512 Datasheet(PDF) 16 Page - STMicroelectronics

Part # M27W512
Description  512 Kbit (64 Kbit x8) low-voltage OTP EPROM
PDF  22 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M27W512 Datasheet(HTML) 16 Page - STMicroelectronics

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DC and AC parameters
M27W512
16/22
Figure 7.
Margin mode AC waveforms
1.
A8 High level = 5V; A9 High level = 12V.
AI00736B
tA9HVPH
tVPXA9X
A8
E
GVPP
A10 Set
VCC
tVPHEL
tA10LEH
tEXVPX
tA10HEH
A9
A10 Reset
tEXA10X
Table 11.
Programming mode AC characteristics
Symbol
Alt
Parameter
Test condition(1)(2)
Min
Max
Unit
tAVEL
tAS
Address valid to Chip Enable low
2
µs
tQVEL
tDS
Input Valid to Chip Enable low
2
µs
tVCHEL
tVCS
VCC high to Chip Enable low
2
µs
tVPHEL
tOES
VPP high to Chip Enable low
2
µs
tVPLVPH
tPRT
VPP rise time
50
ns
tELEH
tPW
Chip Enable program pulse width (Initial)
95
105
µs
tEHQX
tDH
Chip Enable high to input transition
2
µs
tEHVPX
tOEH
Chip Enable high to VPP transition
2
µs
tVPLEL
tVR
VPP low to Chip Enable low
2
µs
tELQV
tDV
Chip Enable low to output valid
1
µs
tEHQZ
(3)
tDFP
Chip Enable high to output Hi-Z
0
130
ns
tEHAX
tAH
Chip Enable high to address transition
0
ns
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.



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