Data polling characteristics(1), Data polling waveforms, Toggle bit characteristics(1) – Rainbow Electronics AT49F512 User Manual
Page 8: Toggle bit waveforms(1)(2)(3), Toggle bit wavef orms, Data polling characteristi cs, Toggle bit characteris tics
AT49F512
8
Notes:
1. These parameters are characterized and not 100% tested.
2. See t
OE
spec in AC Read Characteristics.
Data Polling Waveforms
Notes:
1. These parameters are characterized and not 100% tested.
2. See t
OE
spec in AC Read Characteristics.
Toggle Bit Waveforms
Notes:
1.
Toggling either OE or CE or both OE and CE will operate toggle bit. The t
OEHP
specification must be met by the toggling
input(s)
2.
Begining and ending state of I/O6 will vary.
3.
Any address location may be used but the address should not vary.
Data Polling Characteristics
(1)
Symbol
Parameter
Min
Typ
Max
Units
t
DH
Data Hold Time
10
ns
t
OEH
OE Hold Time
10
ns
t
OE
OE to Output Delay
(2)
ns
t
WR
Write Recovery Time
0
ns
HIGH Z
An
An
An
An
An
WE
CE
OE
I/O7
A0-A15
t
OEH
t
OE
t
DH
t
WR
Toggle Bit Characteristics
(1)
Symbol
Parameter
Min
Typ
Max
Units
t
DH
Data Hold Time
10
ns
t
OEH
OE Hold Time
10
ns
t
OE
OE to Output Delay
(2)
ns
t
OEHP
OE High Pulse
150
ns
t
WR
Write Recovery Time
0
ns