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參數(shù)資料
| 型號： | SN74ABT18640DLR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | ABT SERIES, DUAL 9-BIT BOUNDARY SCAN TRANSCEIVER, INVERTED OUTPUT, PDSO56 |
| 封裝： | GREEN, PLASTIC, SSOP-56 |
| 文件頁數(shù)： | 17/32頁 |
| 文件大小： | 638K |
| 代理商： | SN74ABT18640DLR |
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SN54ABT18640, SN74ABT18640
SCAN TEST DEVICES
WITH 18-BIT INVERTING BUS TRANSCEIVERS
SCBS267C – FEBRUARY 1994 – REVISED JULY 1996
24
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54ABT18640
SN74ABT18640
UNIT
MIN
MAX
MIN
MAX
UNIT
VCC
Supply voltage
4.5
5.5
4.5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
VI
Input voltage
0
VCC
0
VCC
V
IOH
High-level output current
–24
–32
mA
IOL
Low-level output current
48
64
mA
t/v
Input transition rise or fall rate
10
ns/V
TA
Operating free-air temperature
–55
125
–40
85
°C
NOTE 3: Unused pins (input or I/O) must be held high or low to prevent them from floating.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TA = 25°C
SN54ABT18640
SN74ABT18640
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
VIK
VCC = 4.5 V,
II = –18 mA
–1.2
V
VCC = 4.5 V,
IOH = –3 mA
2.5
VOH
VCC = 5 V,
IOH = –3 mA
3
V
VOH
VCC =4 5V
IOH = –24 mA
2
V
VCC = 4.5 V
IOH = –32 mA
2*
2
VOL
VCC =4 5V
IOL = 48 mA
0.55
V
VOL
VCC = 4.5 V
IOL = 64 mA
0.55*
0.55
V
II
DIR, OE, TCK
VCC =5 5V VI =VCC or GND
±1
A
II
A or B ports
VCC = 5.5 V, VI = VCC or GND
±100
A
IIH
TDI, TMS
VCC = 5.5 V,
VI = VCC
10
A
IIL
TDI, TMS
VCC = 5.5 V,
VI = GND
–40
–150
–40
–150
–40
–150
A
IOZH
VCC = 5.5 V,
VO = 2.7 V
50
A
IOZL
VCC = 5.5 V,
VO = 0.5 V
–50
A
IOZPU
VCC = 0 to 2 V, VO = 2.7 V or 0.5 V
±50
A
IOZPD
VCC = 2 V to 0, VO = 2.7 V or 0.5 V
±50
A
Ioff
VCC = 0,
VI or VO ≤ 4.5 V
±100
±450
±100
A
ICEX
Outputs high
VCC = 5.5 V,
VO = 5.5 V
50
A
IO§
VCC = 5.5 V,
VO = 2.5 V
–50
–110
–200
–50
–200
–50
–200
mA
VCC = 5.5 V,
Outputs high
3.5
5
ICC
A or B ports
VCC = 5.5 V,
IO = 0,
Outputs low
33
38
mA
VI = VCC or GND
Outputs disabled
2.9
4.5
I
VCC = 5.5 V, One input at 3.4 V,
50
A
ICC
CC
,,
Other inputs at VCC or GND
50
A
Ci
Control inputs
VI = 2.5 V or 0.5 V
3
pF
Cio
A or B ports
VO = 2.5 V or 0.5 V
10
pF
Co
TDO
VO = 2.5 V or 0.5 V
8
pF
* On products compliant to MIL-PRF-38535, this parameter does not apply.
All typical values are at VCC = 5 V.
The parameters IOZH and IOZL include the input leakage current.
§ 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.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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