AT52BC3221AT View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'AT52BC3221AT' PDF : 36 Pages View PDF
AT52BC3221A(T)
Data Polling Characteristics(1)
Symbol Parameter
tDH
tOEH
tOE
tWR
Notes:
Data Hold Time
OE Hold Time
OE to Output Delay(2)
Write Recovery Time
1. These parameters are characterized and not 100% tested.
2. See tOE spec in “AC Read Characteristics” on page 19.
Data Polling Waveforms
WE
CE
OE
tDH
I/O7
tOEH
tOE HIGH Z
A0-A20
An
An
An
Toggle Bit Characteristics(1)
Symbol Parameter
tDH
tOEH
tOE
tOEHP
tWR
Notes:
Data Hold Time
OE Hold Time
OE to Output Delay(2)
OE High Pulse
Write Recovery Time
1. These parameters are characterized and not 100% tested.
2. See tOE spec in “AC Read Characteristics” on page 19.
Toggle Bit Waveforms(1)(2)(3)
Min
Typ
Max
Units
10
ns
10
ns
ns
0
ns
tWR
An An
Min
Typ
Max
Units
10
ns
10
ns
ns
50
ns
0
ns
Notes:
1. Toggling either OE or CE or both OE and CE will operate toggle bit. The tOEHP specification must be met by the toggling
input(s).
2. Beginning and ending state of I/O6 will vary.
3. Any address location may be used but the address should not vary.
23
3466A–STKD–11/04
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