M29W640DT(2004) データシートの表示（PDF） - STMicroelectronics

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M29W640DT
(Rev.:2004)

64 Mbit (8Mb x8 or 4Mb x16, Boot Block) 3V Supply Flash Memory

STMicroelectronics 

Figure 12. Reset/Block Temporary Unprotect AC Waveforms

M29W640DT, M29W640DB

W, E, G

RB

RP

tPHWL, tPHEL, tPHGL

tPLPX

tPLYH

tRHWL, tRHEL, tRHGL

tPHPHH

AI02931B

Table 15. Reset/Block Temporary Unprotect AC Characteristics

Symbol

Alt

Parameter

M29W640D Unit

tPHWL (1)

tPHEL

tPHGL (1)

tRH

RP High to Write Enable Low, Chip Enable Low, Output

Enable Low

Min

50

ns

tRHWL (1)

tRHEL (1)

tRB

RB High to Write Enable Low, Chip Enable Low, Output

Enable Low

Min

0

ns

tRHGL (1)

tPLPX

tRP RP Pulse Width

Min

500

ns

tPLYH

tREADY RP Low to Read Mode

Max

50

µs

tPHPHH (1)

tVIDR RP Rise Time to VID

Min

500

ns

tVHVPP (1)

VPP Rise and Fall Time

Min

250

ns

Note: 1. Sampled only, not 100% tested.

Figure 13. Accelerated Program Timing Waveforms

VPP/WP

VPP

VIL or VIH

tVHVPP

tVHVPP

AI05563

25/49

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