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AT45DB161B-CNI
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
P28-P30
P31-P33
16
AT45DB161B
2224G–
DFLSH–5/0
3
Wr
ite Op
er
atio
ns
T
he
followi
ng
block
diag
ram
and wa
v
eforms
illus
trate
the v
ariou
s wri
te sequ
en
ces
available
.
M
ain M
em
ory P
age Pr
ogra
m thr
ough
Buff
er
s
Buff
er Writ
e
Bu
ffer
to Main
Mem
ory P
age P
ro
gram
(Dat
a fr
om B
uff
er P
r
ogram
me
d into
Flas
h P
a
ge)
FLASH MEMORY ARRAY
PAGE (528 BYTES)
BUFFER 2 (528 BYTES)
BUFFER 1 (528 BYTES)
I/O INTERFACE
SI
BUFFER 1 TO
MAIN MEMORY
PAGE PROGRAM
MAIN MEMORY
PAGE PROGRAM
THROUGH BUFFER 2
BUFFER 2 TO
MAIN MEMORY
PAGE PROGRAM
MAIN MEMORY PAGE
PROGRAM THROUGH
BUFFER 1
BUFFER 1
WRITE
BUFFER 2
WRITE
SI
CMD
n
n+1
Last Byte
· Completes writing into selected buffer
· Starts self-timed erase/program operation
CS
r
r
, PA11-6
PA5-0, BFA9-8
BFA7-0
SI
CMD
X
X···X, BFA9-8
BFA7-0
n
n+1
Last Byte
· Completes writing into selected buffer
CS
SI
CMD
PA5-0, XX
X
CS
Starts self-timed erase/program operation
r
r
, PA11-6
Each transition represents
8 bits and 8 clock c
y
cles
n = 1st byte
read
n+1 = 2
nd byte
read
17
AT45DB161B
2224G–DF
LSH–5/03
Rea
d Oper
ati
ons
Th
e fol
lowi
ng
bl
ock d
iagra
m
an
d w
ave
form
s i
llus
trat
e th
e va
rio
us
read s
e
quenc
es
available
.
Main M
emory P
age Read
Main M
em
ory P
age to
Buffer
T
ransf
er (Dat
a fr
om Fl
ash P
age Read
int
o Buff
er)
Bu
ffer
Read
FLASH MEMORY ARRAY
PAGE (528 BYTES)
BUFFER 2 (528 BYTES)
BUFFER 1 (528 BYTES)
I/O INTERFACE
MAIN MEMORY
PAGE TO
BUFFER 1
MAIN MEMORY
PAGE TO
BUFFER 2
MAIN MEMORY
PAGE READ
BUFFER 1
READ
BUFFER 2
READ
SO
SI
CMD
PA5-0, BA9-8
BA7-0
X
XXX
CS
n
n+1
SO
r
r
, PA11-6
SI
CMD
PA5-0, XX
X
Starts reading page data into buffer
CS
SO
r
r
, PA11-6
SI
CMD
X
X···X, BFA9-8
BFA7-0
CS
n
n+1
SO
X
Each transition represents
8 bits and 8 clock c
y
cles
n = 1st byte
read
n+1 = 2
nd byte
read
18
AT45DB161B
2224G–
DFLSH–5/0
3
Detail
ed
Bit
-level Rea
d
Timi
ng –
Ina
ctive
Clo
ck P
o
larit
y
Low
Continuous Array
Read (Opcode: 68H)
Main M
emory P
ag
e Read
(Opcod
e: 52H)
SI
0
1X
X
CS
SO
SCK
12
63
64
65
66
67
68
HIGH-IMPEDANCE
D
7
D
6
D
5
D
2
D
1
D
0
D
7
D
6
D
5
DATA OUT
BIT 0
OF
PAGE n+1
BIT 4223
OF
PAGE n
LSB
MSB
t
SU
t
V
SI
0
1
0
10
XXX
CS
SO
SCK
12345
60
61
62
63
64
65
66
67
XX
HIGH-IMPEDANCE
D
7
D
6
D
5
DATA OUT
COMMAND OPCODE
MSB
t
SU
t
V
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
P28-P30
P31-P33
AT45DB161B-CNI
Mfr. #:
Buy AT45DB161B-CNI
Manufacturer:
Microchip Technology / Atmel
Description:
NOR Flash 16M bit
Lifecycle:
New from this manufacturer.
Delivery:
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EMS
Payment:
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