參數(shù)資料
型號(hào): STK12C68-SF45ITR
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類(lèi): SRAM
英文描述: 8K X 8 NON-VOLATILE SRAM, 45 ns, PDSO28
封裝: 0.330 INCH, ROHS COMPLIANT, PLASTIC, SOIC-28
文件頁(yè)數(shù): 3/22頁(yè)
文件大?。?/td> 1262K
代理商: STK12C68-SF45ITR
STK12C68
Document Number: 001-51027 Rev. *E
Page 11 of 22
SRAM Write Cycle
Parameter
Description
25 ns
35 ns
45 ns
Unit
Min
Max
Min
Max
Min
Max
Cypress
Parameter
Alt
tWC
tAVAV
Write Cycle Time
25
35
45
ns
tPWE
tWLWH, tWLEH
Write Pulse Width
20
25
30
ns
tSCE
tELWH, tELEH
Chip Enable To End of Write
20
25
30
ns
tSD
tDVWH, tDVEH
Data Setup to End of Write
10
12
15
ns
tHD
tWHDX, tEHDX
Data Hold After End of Write
0
ns
tAW
tAVWH, tAVEH
Address Setup to End of Write
20
25
30
ns
tSA
tAVWL, tAVEL
Address Setup to Start of Write
0
ns
tHA
tWHAX, tEHAX
Address Hold After End of Write
0
ns
tHZWE
tWLQZ
Write Enable to Output Disable
10
13
14
ns
tLZWE
tWHQX
Output Active After End of Write
5
ns
Switching Waveforms
Figure 9. SRAM Write Cycle 1: WE Controlled [11, 12]
Figure 10. SRAM Write Cycle 2: CE Controlled [11, 12]
tWC
tSCE
tHA
tAW
tSA
tPWE
tSD
tHD
tHZWE
tLZWE
ADDRESS
CE
WE
DATA IN
DATA OUT
DATA VALID
HIGH IMPEDANCE
PREVIOUS DATA
tWC
ADDRESS
tSA
tSCE
tHA
tAW
tPWE
tSD
tHD
CE
WE
DATA IN
DATA OUT
HIGH IMPEDANCE
DATA VALID
Notes
10. If WE is Low when CE goes Low, the outputs remain in the high impedance state.
11. HSB must be high during SRAM Write cycles.
12. CE or WE must be greater than VIH during address transitions.
Not
Recommended
for
New
Designs.
In
production
to
support
ongoing
production
only.
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參數(shù)描述
STK12C68-SF45I-TR 制造商:Cypress Semiconductor 功能描述:
STK12C68-SF45TR 功能描述:靜態(tài)隨機(jī)存取存儲(chǔ)器 8Kbx8 4.5-5.5V AutoStore RoHS:否 制造商:Cypress Semiconductor 存儲(chǔ)容量:16 Mbit 組織:1 M x 16 訪問(wèn)時(shí)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
STK12C68-WF25 功能描述:NVRAM 8Kbx8 4.5-5.5V AutoStore RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線寬度:8 bit 存儲(chǔ)容量:1024 Kbit 組織:128 K x 8 接口類(lèi)型:Parallel 訪問(wèn)時(shí)間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube
STK12C68-WF25I 功能描述:NVRAM 8Kbx8 4.5-5.5V AutoStore RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線寬度:8 bit 存儲(chǔ)容量:1024 Kbit 組織:128 K x 8 接口類(lèi)型:Parallel 訪問(wèn)時(shí)間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube
STK12C68-WF25ITR 制造商:Cypress Semiconductor 功能描述:STK12C68-WF25ITR - Tape and Reel