參數(shù)資料
型號(hào): CY7C166-20VC
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: DRAM
英文描述: 16K x 4 Static RAM
中文描述: 16K X 4 STANDARD SRAM, 20 ns, PDSO24
封裝: 0.300 INCH, PLASTIC, SOJ-24
文件頁數(shù): 4/9頁
文件大?。?/td> 171K
代理商: CY7C166-20VC
CY7C164
CY7C166
Document #: 38-05025 Rev. **
Page 4 of 9
Switching Waveforms
Notes:
9.
WE is HIGH for read cycle.
10. Device is continuously selected, CE = VIL. (CY7C166: OE = VIL also).
11. Address valid prior to or coincident with CE transition LOW.
12. CY7C166 only: Data I/O will be high-impedance if OE = VIH.
Read Cycle No.1
ADDRESS
DATA OUT
PREVIOUS DATA VALID
DATA VALID
tRC
tAA
tOHA
C164–7
[9, 10]
Read Cycle No. 2
50%
DATA VALID
tRC
tACE
tDOE
tLZOE
tLZCE
tPU
DATA OUT
HIGH IMPEDANCE
IMPEDANCE
ICC
ISB
tHZOE
tHZCE
tPD
OE
7C166
CE
HIGH
V CC
SUPPLY
CURRENT
C164–8
[9, 11]
Write Cycle No. 1 (WE Controlled)
tWC
DATA UNDEFINED
HIGH IMPEDANCE
tSCE
tAW
tSA
tPWE
tHA
tHD
tHZWE
tLZWE
tSD
C164–9
DATAINVALID
[8, 12]
CE
WE
DATA IN
DATA I/O
ADDRESS
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