M29W640GH, M29W640GL, M29W640GT, M29W640GB
Figure 17. Reset/Block Temporary Unprotect ac waveforms
DC and ac parameters
W, E, G
tPHWL, tPHEL, tPHGL
RB
tRHWL, tRHEL, tRHGL
RP
tPLPX
tPHPHH
tPLYH
AI02931B
Figure 18. Accelerated Program Timing waveforms
VPP
VPP/WP
VIL or VIH
tVHVPP
tVHVPP
AI05563
Table 20.
Symbol
t
PHWL(1)
t
PHEL
t
PHGL(1)
t
RHWL(1)
t
RHEL(1)
t
RHGL(1)
t
PLPX
t
PLYH
t
PHPHH(1)(2)
t
VHVPP(1)
Reset/Block Temporary Unprotect ac Characteristics
Alt
Parameter
M29W640GT, M29W640GB,
M29W640GH, M29W640GL
Unit
t
RH
RP High to Write Enable Low, Chip Enable Low,
Output Enable Low
Min
200
ns
t
RB
t
RP
RB High to Write Enable Low, Chip Enable Low,
Output Enable Low
RP Pulse Width
Min
Min
Max
Min
Min
0
500
50
500
500
ns
ns
µs
ns
ns
t
READY
RP Low to Read Mode
t
VIDR
RP Rise Time to V
ID
V
PP
Rise and Fall Time
1. Sampled only, not 100% tested.
2. For Fast program operations using V
PP
/WP at 12V.
53/90
NUMONYX [ NUMONYX B.V ]
