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參數(shù)資料
| 型號： | CY7C145 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | 8K x 8 Dual-Port Static RAM(8K x 8 雙端口靜態(tài) RAM) |
| 中文描述： | 8K的× 8雙端口靜態(tài)存儲器（8K的× 8雙端口靜態(tài)RAM）的 |
| 文件頁數(shù)： | 6/20頁 |
| 文件大小： | 612K |
| 代理商： | CY7C145 |
CY7C144
CY7C145
Document #: 38-06034 Rev. *C
Page 6 of 20
AC Test Loads and Waveforms
3.0V
GND
90%
90%
10%
≤
3 ns
≤
3 ns
10%
ALL INPUT PULSES
(a) Normal Load (Load1)
5V
OUTPUT
C = 30 pF
V
TH
= 1.4V
OUTPUT
C = 30pF
(b) Th évenin Equivalent (Load 1)
(c) Three-State Delay (Load 3)
C = 30 pF
OUTPUT
Load (Load 2)
5V
OUTPUT
C = 5 pF
R1 = 893
R2 = 347
R
TH
= 250
R1 = 893
R = 347
Switching Characteristics
Over the Operating Range
[9]
Parameter
Description
7C144-15
7C145-15
7C144-25
7C145-25
7C144-35
7C145-35
7C144-55
7C145-55
Unit
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
READ CYCLE
t
RC
t
AA
t
OHA
Read Cycle Time
15
25
35
55
ns
Address to Data Valid
15
25
35
55
ns
Output Hold From Address
Change
3
3
3
3
ns
t
ACE
t
DOE
t
LZOE[10, 11,12]
t
HZOE[10, 11,12]
t
LZCE[10, 11,12]
t
HZCE[10, 11,12]
t
PU[12]
t
PD[12]
WRITE CYCLE
CE LOW to Data Valid
15
25
35
55
ns
OE LOW to Data Valid
10
15
20
25
ns
OE Low to Low Z
3
3
3
3
ns
OE HIGH to High Z
10
15
20
25
ns
CE LOW to Low Z
3
3
3
3
ns
CE HIGH to High Z
10
15
20
25
ns
CE LOW to Power-Up
0
0
0
0
ns
CE HIGH to Power-Down
15
25
35
55
ns
t
WC
t
SCE
t
AW
t
HA
t
SA
t
PWE
Write Cycle Time
15
25
35
55
ns
CE LOW to Write End
12
20
30
45
ns
Address Set-Up to Write End
12
20
30
45
ns
Address Hold From Write End
2
2
2
2
ns
Address Set-Up to Write Start
0
0
0
0
ns
Write Pulse Width
12
20
25
40
ns
Notes:
9. Test conditions assume signal transition time of 3 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V, and output loading of the specified
I
/I
and 30-pF load capacitance.
10.At any given temperature and voltage condition for any given device, t
HZCE
is less than t
LZCE
and t
HZOE
is less than t
LZOE
.
11. Test conditions used are Load 3.
12.This parameter is guaranteed but not tested.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY7C14502XC | 制造商:Cypress Semiconductor 功能描述: |
| CY7C145-15AXC | 功能描述:靜態(tài)隨機(jī)存取存儲器 5V 8Kx9 CMOS Dual Port 靜態(tài)隨機(jī)存取存儲器 COM RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
| CY7C145-15AXCT | 功能描述:靜態(tài)隨機(jī)存取存儲器 5V 8Kx9 CMOS Dual Port 靜態(tài)隨機(jī)存取存儲器 COM RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
| CY7C145-15JCT | 制造商:Rochester Electronics LLC 功能描述: 制造商:Cypress Semiconductor 功能描述: |
| CY7C14522XC | 制造商:Cypress Semiconductor 功能描述: |
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