Cypress CY7C1470V25 Manuel D’Utilisation
CY7C1470V25
CY7C1472V25
CY7C1474V25
CY7C1472V25
CY7C1474V25
Document #: 38-05290 Rev. *I
Page 2 of 28
A0, A1, A
C
MODE
BW
a
BW
b
WE
CE1
CE2
CE3
CE2
CE3
OE
READ LOGIC
DQs
DQP
DQP
a
DQP
b
D
A
T
A
S
T
E
E
R
I
N
G
O
U
T
P
U
T
B
U
F
F
E
R
S
MEMORY
ARRAY
E
E
INPUT
REGISTER 0
ADDRESS
REGISTER 0
WRITE ADDRESS
REGISTER 1
WRITE ADDRESS
REGISTER 2
WRITE REGISTRY
AND DATA COHERENCY
CONTROL LOGIC
BURST
LOGIC
LOGIC
A0'
A1'
D1
D0
D0
Q1
Q0
Q0
A0
A1
C
ADV/LD
ADV/LD
E
INPUT
REGISTER 1
S
E
N
S
E
A
M
P
S
O
U
T
P
U
T
R
E
G
I
S
T
E
R
S
E
CLK
CEN
WRITE
DRIVERS
ZZ
Sleep
Control
Logic Block Diagram-CY7C1472V25 (4M x 18)
Logic Block Diagram-CY7C1474V25 (1M x 72)
A0, A1, A
C
MODE
CE1
CE2
CE3
CE2
CE3
OE
READ LOGIC
DQs
DQP
DQP
a
DQP
b
DQP
c
DQP
d
DQP
e
DQP
f
DQP
g
DQP
h
D
A
T
A
S
T
E
E
R
I
N
G
O
U
T
P
U
T
B
U
F
F
E
R
S
MEMORY
ARRAY
E
E
INPUT
REGISTER 0
ADDRESS
REGISTER 0
WRITE ADDRESS
REGISTER 1
WRITE ADDRESS
REGISTER 2
BURST
LOGIC
LOGIC
A0'
A1'
D1
D0
D0
Q1
Q0
Q0
A0
A1
C
ADV/LD
ADV/LD
E
INPUT
REGISTER 1
S
E
N
S
E
A
M
P
S
O
U
T
P
U
T
R
E
G
I
S
T
E
R
S
E
CLK
CEN
WRITE
DRIVERS
BW
a
BW
b
WE
ZZ
Sleep
Control
BW
c
WRITE REGISTRY
AND DATA COHERENCY
CONTROL LOGIC
BW
d
BW
e
BW
f
BW
g
BW
h
Selection Guide
250 MHz
200 MHz
167 MHz
Unit
Maximum Access Time
3.0
3.0
3.4
ns
Maximum Operating Current
450
450
400
mA
Maximum CMOS Standby Current
120
120
120
mA