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AT49F512-90TI

P1-P3P4-P6P7-P9P10-P12
AT49F512
7
Program Cycle Waveforms
Chip Erase Cycle Waveforms
Note: OE must be high only when WE and CE are both low.
Program Cycle Characteristics
Symbol Parameter Min Typ Max Units
t
BP
Byte Programming Time 10 50 µs
t
AS
Address Set-up Time 0 ns
t
AH
Address Hold Time 50 ns
t
DS
Data Set-up Time 50 ns
t
DH
Data Hold Time 0 ns
t
WP
Write Pulse Width 90 ns
t
WPH
Write Pulse Width High 90 ns
t
EC
Erase Cycle Time 10 seconds
OE
PROGRAM CYCLE
INPUT
DATA
ADDRESS
A0
55
5555 5555
AA
2AAA
t
BP
t
WPH
t
WP
CE
WE
A0-A15
DATA
t
AS
t
AH
t
DH
t
DS
OE
AA
80
10
55 55
5555
5555
5555
AA
BYTE 0
BYTE 1 BYTE 2
BYTE 3
BYTE 4
BYTE 5
2AAA 2AAA
t
WPH
t
WP
CE
WE
A0-A15
DATA
t
AS
t
AH
t
EC
t
DH
t
DS
5555
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
(1)(2)(3)
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
AT49F512
9
Software Product Identification Entry
(1)
Software Product Identifcation Exit
(1)
Notes: 1. Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).
2.
A1 - A15 = V
IL
.
Manufacture Code is read for A0 = V
IL
;
Device Code is read for A0 = V
IH
.
3. The device does not remain in identification mode if pow-
ered down.
4. The device returns to standard operation mode.
5. Manufacturer Code: 1FH
Device Code: 03H
Boot Block
Lockout Enable Algorithm
(1)
Notes: 1. Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).
2. Boot block lockout feature enabled.
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA 90
TO
ADDRESS 5555
ENTER PRODUCT
IDENTIFICATION
MODE
(2)(3)(5)
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA F0
TO
ADDRESS 5555
EXIT PRODUCT
IDENTIFICATION
MODE
(4)
LOAD DATA F0
TO
ANY ADDRESS
EXIT PRODUCT
IDENTIFICATION
MODE
(4)
OR
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA 80
TO
ADDRESS 5555
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA 40
TO
ADDRESS 5555
PAUSE 1 second
(2)
P1-P3P4-P6P7-P9P10-P12

AT49F512-90TI

Mfr. #:
Buy AT49F512-90TI
Manufacturer:
Description:
IC FLASH 512K PARALLEL 32TSOP
Lifecycle:
New from this manufacturer.
Delivery:
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