參數(shù)資料
型號(hào): CY7C1156V18
廠商: Cypress Semiconductor Corp.
英文描述: 18-Mbit QDR⑩-II+ SRAM 4-Word Burst Architecture (2.0 Cycle Read Latency)
中文描述: 18兆位的國(guó)防評(píng)估報(bào)告⑩- II SRAM的4字突發(fā)架構(gòu)(2.0周期讀寫延遲)
文件頁(yè)數(shù): 17/28頁(yè)
文件大?。?/td> 954K
代理商: CY7C1156V18
CY7C1141V18
CY7C1156V18
CY7C1143V18
CY7C1145V18
Document Number: 001-06583 Rev. *C
Page 17 of 28
TAP AC Switching Characteristics
The Tap AC Switching Characteristics over the operating range follows.
[15, 16]
Parameter
t
TCYC
t
TF
t
TH
t
TL
Setup Times
t
TMSS
t
TDIS
t
CS
Hold Times
t
TMSH
t
TDIH
t
CH
Output Times
t
TDOV
t
TDOX
Description
Min
50
Max
Unit
ns
MHz
ns
ns
TCK Clock Cycle Time
TCK Clock Frequency
TCK Clock HIGH
TCK Clock LOW
20
20
20
TMS Setup to TCK Clock Rise
TDI Setup to TCK Clock Rise
Capture Setup to TCK Rise
5
5
5
ns
ns
ns
TMS Hold after TCK Clock Rise
TDI Hold after Clock Rise
Capture Hold after Clock Rise
5
5
5
ns
ns
ns
TCK Clock LOW to TDO Valid
TCK Clock LOW to TDO Invalid
10
ns
ns
0
TAP Timing and Test Condition
The Tap Timing and Test Conditions for the CY7C1141V18, CY7C1156V18, CY7C1143V18, and CY7C1145V18 follows.
[16]
Figure 4. Tap Timing and Test Condition
t
TL
t
TH
(a)
TDO
C
L
= 20 pF
Z
0
= 50
GND
0.9V
50
1.8V
0V
ALL INPUT PULSES
0.9V
Test Clock
TCK
Test Mode Select
TMS
Test Data In
TDI
Test Data Out
TDO
t
TCYC
t
TMSH
t
TMSS
t
TDIS
t
TDIH
t
TDOV
t
TDOX
Notes
15.t
and t
refer to the setup and hold time requirements of latching data from the boundary scan register.
16.Test conditions are specified using the load in TAP AC test conditions. t
R
/t
F
= 1 ns.
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