AT52BC3221AT View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'AT52BC3221AT' PDF : 36 Pages View PDF
Read Cycle (1)
(Address Controlled, PCS1 = POE = VIL, ZZ = PWE = VIH, PUB or/and PLB = VIL)
Address
Data Out
Previous Data Valid
A
H
Data Valid
Read Cycle (2)
(ZZ = PWE = VIH)
Address
A
H
PCS1
A
PUB, PLB
POE
Data Out
High-Z
E
LZ
Z
HZ
Data Valid
Notes:
1. tHZ and tOHZ are defined as the time at which the outputs achieve the open circuit conditions and are not referenced to output
voltage levels.
2. At any given temperature and voltage condition, tHZ (max) is less than tLZ (min) both for a given device and from device to
device interconnection.
3. Do not access device with cycle timing shorter than tRC (tWC) for continuous periods > 40 µs.
Page Read Cycle
(ZZ = PWE = VIH, 16 Words Access)
A0~ A3
A4~ A20
PCS1
PUB, PLB
OE
Data Out
High-Z
tRC
tAA
tMRC
tPC
tPC
tPC
tPC
tPC
tPC
tPC
tCO
tBA
tOE
tOH
tHZ
tBHZ
tBLZ
tLZ
tOLZ
tPAA
tPAA
tPAA
tPAA
tPAA
tPAA
tPAA
tOHZ
Data Valid Data Valid Data Valid Data Valid Data Valid Data Valid Data Valid Data Valid
Notes:
1. tHZ and tOHZ are defined as the time at which the outputs achieve the open circuit conditions and are not referenced to output
voltage levels.
2. At any given temperature and voltage condition, tHZ (max) is less than tLZ (min) both for a given device and from device to
device interconnection.
3. Do not access device with cycle timing shorter than tRC (tWC) for continuous periods > 20 µs.
30 AT52BC3221A(T)
3466A–STKD–11/04
Share Link: 
