參數(shù)資料
型號: CY7C1464AV25
廠商: Cypress Semiconductor Corp.
英文描述: 36-Mbit (1M x 36/2M x 18/512K x 72) Pipelined SRAM with NoBL Architecture(帶NoBL結(jié)構(gòu)的36-Mbit (1M x 36/2M x 18/512K x 72) Pipelined SRAM)
中文描述: 36兆位(1米x 36/2M x 18/512K × 72)流水線的SRAM架構(gòu)的總線延遲(帶總線延遲結(jié)構(gòu)的36兆位(1米x 36/2M x 18/512K × 72)流水線的SRAM)
文件頁數(shù): 5/27頁
文件大?。?/td> 465K
代理商: CY7C1464AV25
CY7C1460AV25
CY7C1462AV25
CY7C1464AV25
Document #: 38-05354 Rev. *D
Page 5 of 27
Pin Configurations
(continued)
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
V
W
1
2
3
4
5
6
7
8
9
11
10
DQg
DQg
DQg
DQg
DQg
DQg
DQg
DQg
DQc
DQc
DQc
DQc
NC
DQPg
DQh
DQh
DQh
DQh
DQd
DQd
DQd
DQd
DQPd
DQPc
DQc
DQc
DQc
DQc
NC
DQh
DQh
DQh
DQh
DQPh
DQd
DQd
DQd
DQd
DQb
DQb
DQb
DQb
DQb
DQb
DQb
DQb
DQf
DQf
DQf
DQf
NC
DQPf
DQa
DQa
DQa
DQa
DQe
DQe
DQe
DQe
DQPa
DQPb
DQf
DQf
DQf
DQf
NC
DQa
DQa
DQa
DQa
DQPe
DQe
DQe
DQe
DQe
A
A
A
A
NC
NC
NC/144M
NC/72M
A
NC/288M
A
A
A
A
A
A
A1
A0
A
A
A
A
A
A
NC/1G
NC/576M
NC
NC
NC
NC
NC
BWS
b
BWS
f
BWS
e
BWS
a
BWS
c
BWS
g
BWS
d
BWS
h
TMS
TDI
TDO
TCK
NC
NC
MODE
NC
CEN
V
SS
NC
CLK
NC
V
SS
V
DD
V
DD
V
DD
V
DD
V
DD
V
DD
V
DD
V
DD
V
DD
V
DD
V
DD
V
DD
V
DD
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
V
DD
NC
OE
CE
3
CE
1
CE
2
ADV/LD
WE
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
ZZ
V
SS
V
SS
V
SS
V
SS
NC
V
DDQ
V
SS
V
SS
NC
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
NC
V
SS
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
NC
V
DDQ
V
DDQ
V
DDQ
V
DDQ
NC
V
DDQ
V
DDQ
V
DDQ
V
DDQ
NC
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
209-ball FBGA (14 x 22 x 1.76 mm) Pinout
CY7C1464AV25 (512K x 72)
Pin Definitions
Pin Name
A0
A1
A
BW
a
BW
b
BW
c
BW
d
BW
e
BW
f
BW
g
BW
h
WE
I/O Type
Input-
Synchronous
Pin Description
Address Inputs used to select one of the address locations
. Sampled at the rising edge of
the CLK.
Input-
Synchronous
Byte Write Select Inputs, active LOW
. Qualified with WE to conduct writes to the SRAM.
Sampled on the rising edge of CLK. BW
a
controls DQ
a
and DQP
a
, BW
b
controls DQ
b
and DQP
b
,
BW
c
controls DQ
c
and DQP
c
, BW
d
controls DQ
d
and DQP
d
, BW
e
controls DQ
e
and DQP
e,
BW
f
controls DQ
f
and DQP
f,
BW
g
controls DQ
g
and DQP
g,
BW
h
controls DQ
h
and DQP
h
.
Input-
Synchronous
Input-
Synchronous
Write Enable Input, active LOW
. Sampled on the rising edge of CLK if CEN is active LOW. This
signal must be asserted LOW to initiate a write sequence.
Advance/Load Input used to advance the on-chip address counter or load a new address
.
When HIGH (and CEN is asserted LOW) the internal burst counter is advanced. When LOW, a
new address can be loaded into the device for an access. After being deselected, ADV/LD should
be driven LOW in order to load a new address.
Clock Input
. Used to capture all synchronous inputs to the device. CLK is qualified with CEN.
CLK is only recognized if CEN is active LOW.
ADV/LD
CLK
Input-
Clock
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