參數(shù)資料
型號: CY7C4205V-25ASC
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: DRAM
英文描述: Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; No. of Contacts:5; Connector Shell Size:14; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Gender:Female
中文描述: 256 X 18 OTHER FIFO, 15 ns, PQFP64
封裝: 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, STQFP-64
文件頁數(shù): 6/25頁
文件大?。?/td> 409K
代理商: CY7C4205V-25ASC
CY7C4425/4205/4215
CY7C4225/4235/4245
6
t
PAFsynch
Clock to Programmable Almost-Full Flag
(Synchronous mode, V
CC
/SMODE tied to V
SS
)
Clock to Programmable Almost-Empty Flag
[12]
(Asynchronous mode, V
CC
/SMODE tied to V
CC
)
Clock to Programmable Almost-Full Flag
(Synchronous mode, V
CC
/SMODE tied to V
SS
)
Clock to Half-Full Flag
Clock to Expansion Out
Expansion in Pulse Width
Expansion in Set-Up Time
Skew Time between Read Clock and Write
Clock for Full Flag
Skew Time between Read Clock and Write
Clock for Empty Flag
Skew Time between Read Clock and Write
Clock for Programmable Almost Empty and Pro-
grammable Almost Full Flags.
8
10
15
20
ns
t
PAEasynch
12
16
20
25
ns
t
PAEsynch
8
10
15
20
ns
t
HF
t
XO
t
XI
t
XIS
t
SKEW1
12
7
16
10
20
15
25
20
ns
ns
ns
ns
ns
3
6.5
5
6
10
10
10
14
15
12
4.5
5
t
SKEW2
5
6
10
12
ns
t
SKEW3
10
15
18
20
ns
Switching Characteristics
Over the Operating Range (continued)
Parameter
Description
7C42X5-10
Min.
7C42X5-15
Min.
7C42X5-25
Min.
7C42X5-35
Min.
Max.
Max.
Max.
Max.
Unit
Switching Waveforms
Notes:
10. Pulse widths less than minimum values are not allowed.
11.
Values guaranteed by design, not currently tested.
12.
PAFasynch
, t
, after program register write will not be valid until 5 ns + t
.
13. t
is the minimum time between a rising RCLK edge and a rising WCLK edge to guarantee that FF will go HIGH during the current clock cycle. If the time between the
rising edge of RCLK and the rising edge of WCLK is less than t
SKEW1
, then FF may not change state until the next WCLK edge.
Write Cycle Timing
t
CLKH
t
CLKL
NO OPERATION
t
DS
t
SKEW1
t
ENS
WEN
t
CLK
t
DH
t
WFF
t
WFF
t
ENH
WCLK
D
0
–D
17
FF
REN
RCLK
42X5–6
[13]
相關(guān)PDF資料
PDF描述
CY7C4205V-35ASC Circular Connector; No. of Contacts:5; Series:; Body Material:Aluminum; Connecting Termination:Solder; Connector Shell Size:14; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:14-5
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