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AT49BV642DT-70TU

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P29
22
3631A–FLASH–04/06
AT49BV642D(T)
Notes: 1. These parameters are characterized and not 100% tested.
2. See t
OE
spec on page 19.
24. Data Polling Waveforms
Notes: 1. These parameters are characterized and not 100% tested.
2. See t
OE
spec on page 19.
26. 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. Beginning and ending state of I/O6 will vary.
3. Any address location may be used but the address should not vary.
23. Data Polling Characteristics
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
A0-A21
WE
CE
OE
I/O7
25. 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 50 ns
t
WR
Write Recovery Time 0 ns
23
3631A–FLASH–04/06
AT49BV642D(T)
27. Software Product Identification Entry
(1)
28. Software Product Identification Exit
(1)(6)
Notes: 1. Data Format: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex) Address Format: A11 - A0 (Hex), and A11 - A21 (Don’t Care).
2. A1 - A21 = V
IL
. Manufacturer 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 powered down.
4. The device returns to standard operation mode.
5. Manufacturer Code: 001FH(x16)
Device Code: 01D6H – AT49BV642D;
01D2H – AT49BV642DT.
6. Either one of the Product ID Exit commands can be used.
LOAD DATA AA
TO
ADDRESS 555
LOAD DATA 55
TO
ADDRESS AAA
LOAD DATA 90
TO
ADDRESS 555
ENTER PRODUCT
IDENTIFICATION
MODE
(2)(3)(5)
LOAD DATA AA
TO
ADDRESS 555
LOAD DATA 55
TO
ADDRESS AAA
LOAD DATA F0
TO
ADDRESS 555
EXIT PRODUCT
IDENTIFICATION
MODE
(4)
OR
LOAD DATA F0
TO
ANY ADDRESS
EXIT PRODUCT
IDENTIFICATION
MODE
(4)
24
3631A–FLASH–04/06
AT49BV642D(T)
29. Common Flash Interface Definition Table
Address Data Comments
10h 0051h “Q”
11h 0052h “R”
12h 0059h “Y”
13h 0002h
14h 0000h
15h 0041h
16h 0000h
17h 0000h
18h 0000h
19h 0000h
1Ah 0000h
1Bh 0027h VCC min write/erase
1Ch 0036h VCC max write/erase
1Dh 0090h VPP min voltage
1Eh 00A0h VPP max voltage
1Fh 0004h Typ word write – 10 µs
20h 0002h Typ dual-word program time–5µs
21h 0009h Typ sector erase – 500 ms
22h 0010h Typ chip erase – 64,300 ms
23h 0004h Max word write/typ time
24h 0004h Max dual-word program time/typ time
25h 0004h Max sector erase/typ sector erase
26h 0004h Max chip erase/ typ chip erase
27h 0017h Device size
28h 0001h x16 device
29h 0000h x16 device
2Ah 0002h Max number of bytes in multiple byte write = 4
2Bh 0000h Max number of bytes in multiple byte write = 4
2Ch 0002h 2 regions,x=2
2Dh 0007h 8K bytes, Y = 7
2Eh 0000h 8K bytes, Y = 7
2Fh 0020h 8K bytes,Z=32
30h 0000h 8K bytes,Z=32
31h 007Eh 64K bytes, Y = 126
32h 0000h 64K bytes, Y = 126
33h 0000h 64K bytes,Z=256
34h 0001h 64K bytes,Z=256
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P29

AT49BV642DT-70TU

Mfr. #:
Buy AT49BV642DT-70TU
Manufacturer:
Microchip Technology / Atmel
Description:
NOR Flash 64M FLASH-64M 2.7V TOP BOOT
Lifecycle:
New from this manufacturer.
Delivery:
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