AT52BC3221AT View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'AT52BC3221AT' PDF : 36 Pages View PDF
Program Cycle Characteristics
Symbol
tBP
tAS
tAH
tDS
tDH
tWP
tWPH
tWC
tRP
tEC
tSEC1
tSEC2
tES
tPS
Parameter
Word Programming Time
Address Setup Time
Address Hold Time
Data Setup Time
Data Hold Time
Write Pulse Width
Write Pulse Width High
Write Cycle Time
Reset Pulse Width
Chip Erase Cycle Time
Sector Erase Cycle Time (4K Word Sectors)
Sector Erase Cycle Time (32K Word Sectors)
Erase Suspend Time
Program Suspend Time
Program Cycle Waveforms
OE
PROGRAM CYCLE
CE
WE
A0 - A20
DATA
tWP
tWPH
tAS
tAH
tDH
555
tWC
AAA
tDS
AA
55
555
ADDRESS
A0
INPUT
DATA
Min
Typ
15
0
35
35
0
35
35
70
500
80
0.3
1.2
tBP
555
AA
Max
150
400
3.0
5.0
15
20
Units
µs
ns
ns
ns
ns
ns
ns
ns
ns
seconds
seconds
seconds
µs
µs
Sector or Chip Erase Cycle Waveforms
OE (1)
CE
WE
tAS
tWP
tAH
tDH
tWPH
Notes:
A0-A20
555
AAA
555
555
AAA
Note 2
tWC
tDS
tEC
DATA
AA
WORD 0
55
WORD 1
80
WORD 2
AA
WORD 3
55
WORD 4
Note 3
WORD 5
1. OE must be high only when WE and CE are both low.
2. For chip erase, the address should be 555. For sector erase, the address depends on what sector is to be erased.
(See note 3 under “Command Definitions in Hex” on page 12.)
3. For chip erase, the data should be 10H, and for sector erase, the data should be 30H.
22 AT52BC3221A(T)
3466A–STKD–11/04
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