參數(shù)資料
型號(hào): CY7C1522JV18-250BZI
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類(lèi): SRAM
英文描述: 8M X 8 DDR SRAM, 0.45 ns, PBGA165
封裝: 15 X 17 MM, 1.40 MM HEIGHT, MO-216, FBGA-165
文件頁(yè)數(shù): 8/27頁(yè)
文件大?。?/td> 658K
代理商: CY7C1522JV18-250BZI
CY7C1522JV18, CY7C1529JV18
CY7C1523JV18, CY7C1524JV18
Document #: 001-44700 Rev. *B
Page 16 of 27
TAP AC Switching Characteristics
Over the Operating Range [13, 14]
Parameter
Description
Min
Max
Unit
tTCYC
TCK Clock Cycle Time
50
ns
tTF
TCK Clock Frequency
20
MHz
tTH
TCK Clock HIGH
20
ns
tTL
TCK Clock LOW
20
ns
Setup Times
tTMSS
TMS Setup to TCK Clock Rise
5
ns
tTDIS
TDI Setup to TCK Clock Rise
5
ns
tCS
Capture Setup to TCK Rise
5
ns
Hold Times
tTMSH
TMS Hold after TCK Clock Rise
5
ns
tTDIH
TDI Hold after Clock Rise
5
ns
tCH
Capture Hold after Clock Rise
5
ns
Output Times
tTDOV
TCK Clock LOW to TDO Valid
10
ns
tTDOX
TCK Clock LOW to TDO Invalid
0
ns
TAP Timing and Test Conditions
Figure 2 shows the TAP timing and test conditions. [14]
Figure 2. TAP Timing and Test Conditions
tTL
tTH
(a)
TDO
CL = 20 pF
Z0 = 50Ω
GND
0.9V
50
Ω
1.8V
0V
ALL INPUT PULSES
0.9V
Test Clock
Test Mode Select
TCK
TMS
Test Data In
TDI
Test Data Out
tTCYC
tTMSH
tTMSS
tTDIS
tTDIH
tTDOV
tTDOX
TDO
Notes
13. tCS and tCH refer to the setup and hold time requirements of latching data from the boundary scan register.
14. Test conditions are specified using the load in TAP AC Test Conditions. tR/tF = 1 ns.
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