OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

AT29C512-90JC

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
10
AT29C512
0456F–FLASH–12/02
Software Data Protection Enable Algorithm
(1)
Notes: 1. Data Format: I/O7 - I/O0 (Hex);Address Format: A14 -
A0 (Hex).
2. Data Protect state will be activated at end of program
cycle.
3. Data Protect state will be deactivated at end of pro-
gram period.
4. 128 bytes of data MUST BE loaded.
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA A0
TO
ADDRESS 5555
LOAD DATA
TO
PAGE (128 BYTES)
(4)
WRITES ENABLED
ENTER DATA
PROTECT STATE
(2)
Software Data Protection Disable Algorithm
(1)
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 20
TO
ADDRESS 5555
LOAD DATA
TO
PAGE (128 BYTES)
(4)
EXIT DATA
PROTECT STATE
(3)
Software Protected Program Cycle Waveform
(1)(2)(3)
Notes: 1. A7 through A15 must specify the page address during each high-to-low transition of WE (or CE) after the software code has
been entered.
2. OE
must be high when WE and CE arebothlow.
3. All bytes that are not loaded within the sector being programmed will be indeterminate.
OE
(1)
CE
WE
DATA
(3)
BYTE 0 BYTE 126 BYTE 127
t
DH
t
BLC
t
DS
t
WP
t
WPH
t
AH
A0-A6
A7-A15
(2)
t
WC
5555 2AAA 5555
AA 55 A0
t
AS
SECTOR ADDRESS
BYTE ADDRESS
11
AT29C512
0456F–FLASH–12/02
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.
2. Beginning 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
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
WE
CE
OE
I/O6
(2)
t
OEH
HIGH Z
t
DH
t
OE
t
WR
12
AT29C512
0456F–FLASH–12/02
Software Product Identification Entry
(1)
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA 90
TO
ADDRESS 5555
PAUSE 10 mS ENTER PRODUCT
IDENTIFICATION
MODE
(2)(3)(5)
Software Product Identification Exit
(1)
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA F0
TO
ADDRESS 5555
PAUSE 10 mS EXIT PRODUCT
IDENTIFICATION
MODE
(4)
Notes: 1. Data Format: I/O7 - I/O0 (Hex); Address Format: A14 - A0 (Hex).
2. A1 - A15 = V
IL
. Manufacturer Code is read for A0 = V
IL
;DeviceCodeisreadforA0=V
IH
.
3. The device does not remain in identification mode if powered down.
4. The device returns to standard operation mode.
5. Manufacturer Code is 1F. The Device Code is 5D.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

AT29C512-90JC

Mfr. #:
Buy AT29C512-90JC
Manufacturer:
Description:
IC FLASH 512K PARALLEL 32PLCC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet