AT29C432-12TC ATMEL [ATMEL Corporation], AT29C432-12TC Datasheet - Page 10

• Manufacturer Part Number: AT29C432-12TC
• Description: 4 Megabit 5-volt Flash with 256K E2PROM Memory
• Manufacturer: ATMEL [ATMEL Corporation]

Note:
AC Data Polling Characteristics
AC Data Polling Waveform
Software Product
Identification Entry
Notes for software product identification:
1. Data Format: I/O7 - I/O0 (Hex);
2. A1 - A18 = V
3. The device does not remain in identification mode if powered down.
4. The device returns to standard operation mode.
5. Manufacturer Code: 1F
10
Symbol
t
t
t
Address Format: A14 - A0 (Hex).
Device Code is read for A0 = V
Device Code: B4
WCE
WCF
OEH
1. The above timing diagram illustrates DATA Polling where Dn is equal to the state of I/07 for the last byte written and Dn
is its complement.
IL
. Manufacture Code is read for A0 = V
ADDRESS 2AAA
ADDRESS 5555
ADDRESS 5555
LOAD DATA AA
LOAD DATA 55
LOAD DATA 90
PAUSE 10 mS
Parameter
Write Cycle Time, E
Write cycle Time, Flash
WE or CEE (CEF) Disable to OE Active
TO
TO
TO
AT29C432
(1)
IH
. CEF = Low, CEE = High
ENTER PRODUCT
IDENTIFICATION
MODE
2
PROM
(2, 3, 5)
(1)
IL
;
Software Product
Identification Exit
Min
10
ADDRESS 2AAA
LOAD DATA AA
ADDRESS 5555
ADDRESS 5555
LOAD DATA F0
LOAD DATA 55
PAUSE 10 mS
TO
TO
TO
(1)
Max
10
10
EXIT PRODUCT
IDENTIFICATION
MODE
(4)
Units
ms
ms
ns