參數(shù)資料
型號(hào): SN74ABT8374
廠商: Texas Instruments, Inc.
英文描述: Scan Test Devices With Octal D-Type Edge-Triggered Flip-Flops(掃描測(cè)試裝置(帶八D邊沿觸發(fā)器))
中文描述: 掃描測(cè)試設(shè)備與八路D型邊沿觸發(fā)正反器(掃描測(cè)試裝置(帶八?邊沿觸發(fā)器))
文件頁(yè)數(shù): 16/19頁(yè)
文件大?。?/td> 391K
代理商: SN74ABT8374
SN54ABT8374, SN74ABT8374
SCAN TEST DEVICES WITH
OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS
SCBS486 – JULY 1994
3–16
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted) (see Note 3)
PARAMETER
TEST CONDITIONS
TA = 25
°
C
TYP
SN54ABT8374
MIN
SN74ABT8374
MIN
UNIT
MIN
MAX
MAX
MAX
VIK
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 5.5 V,
VI = VCC or GND
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 0,
VCC = 5.5 V,
VCC = 5.5 V,
II = –18 mA
IOH = – 3 mA
IOH = – 3 mA
IOH = – 24 mA
IOH = – 32 mA
IOL = 48 mA
IOL = 64 mA
–1.2
–1.2
–1.2
V
VOH
2.5
2.5
2.5
V
3
3
3
2
2
2*
2
VOL
0.55
0.55
V
0.55*
0.55
II
CLK, D, OE,
TCK
±
1
±
1
±
1
μ
A
IIH
IIL
IOZH
IOZL
Ioff
ICEX
IO
VI = VCC
VI = GND
VO = 2.7 V
VO = 0.5 V
VI or VO
5.5 V
VO = 5.5 V
VO = 2.5 V
TDI, TMS
10
10
10
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
mA
TDI, TMS
–160
–160
–160
50
50
50
–50
±
100
50
–50
–50
±
100
50
Outputs high
50
–50
–100
–180
–50
–180
–50
–180
ICC
VCC = 5.5 V,
VI = VCC or GND
5 5 V
IO = 0,
Outputs high
2
2
2
Outputs low
30
30
30
mA
Outputs
disabled
2
2
2
VCC = 5.5 V,
VCC 5.5 V,
Other inputs at VCC or GND
VI = 2.5 V or 0.5 V
VO = 2.5 V or 0.5 V
One input at 3.4 V,
1 5
1.5
1 5
1.5
1 5
1.5
mA
ICC§
Ci
Co
3
pF
8
pF
* On products compliant to MIL-STD-883, Class B, this parameter does not apply.
All typical values are at VCC = 5 V.
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
§This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (test mode) (see Note 3 and Figure 9)
SN54ABT8374
MIN
SN74ABT8374
MIN
UNIT
MAX
MAX
fclock
tw
Clock frequency
TCK
0
50
0
50
MHz
Pulse duration
TCK high or low
CLK or D or OE before TCK
TDI before TCK
TMS before TCK
CLK or D or OE after TCK
TDI after TCK
TMS after TCK
Power up to TCK
VCC power up
5
ns
Setup time
5
tsu
6
ns
6
H ld i
Hold time
0
th
0
ns
0
td
tr
Delay time
50
ns
μ
s
Rise time
1
NOTE 3: Product preview specifications are design goals only and are subject to change without notice.
P
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