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參數(shù)資料
| 型號(hào)： | SN54ABT16861 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 20 Bit Bus Transceivers With 3-State Outputs(20位總線收發(fā)器(三態(tài)輸出)) |
| 中文描述： | 20位總線收發(fā)器與3態(tài)輸出（20位總線收發(fā)器（三態(tài)輸出）） |
| 文件頁數(shù)： | 3/5頁 |
| 文件大小： | 89K |
| 代理商： | SN54ABT16861 |
SN54ABT16861, SN74ABT16861
20-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS455 – OCTOBER 1992
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
3
recommended operating conditions (see Note 2)
SN54ABT16861
MIN
4.5
2
SN74ABT16861
MIN
4.5
2
UNIT
MAX
5.5
MAX
5.5
VCC
VIH
VIL
VI
IOH
IOL
t/
v
TA
NOTE 2: Unused or floating inputs must be held high or low.
Supply voltage
High-level input voltage
Low-level input voltage
Input voltage
High-level output current
Low-level output current
Input transition rise or fall rate
Operating free-air temperature
V
V
V
V
0.8
0.8
0
VCC
–24
48
10
125
0
VCC
–32
64
10
85
mA
mA
ns/V
°
C
Outputs enabled
–55
–40
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TA = 25
°
C
TYP
SN54ABT16861
MIN
SN74ABT16861
MIN
UNIT
MIN
MAX
–1.2
MAX
–1.2
MAX
–1.2
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 = 0 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
IO = 0,
VI = VCC or GND
VCC = 5.5 V, One
input at 3 4 V
input at 3.4 V,
Other inputs at
VCC or GND
VI = 2.5 V or 0.5 V
VO = 2.5 V or 0.5 V
II = –18 mA
IOH = – 3 mA
IOH = – 3 mA
IOH = – 24 mA
IOH = – 32 mA
IOL = 48 mA
IOL = 64 mA
V
VOH
2.5
2.5
2.5
V
3
2
3
2
3
2
2
VOL
0.55
0.55
0.55
V
0.55
±
1
±
100
50
–50
±
100
50
–180
II
Control inputs
A or B ports
±
1
±
1
μ
A
±
100
50
–50
±
100
50
–180
±
100
50
–50
IOZH§
IOZL§
IOFF
ICEX
IO
VO = 2.7 V
VO = 0.5 V
VI or VO
≤
4.5 V
VO = 5.5 V
VO = 2.5 V
μ
A
μ
A
μ
A
μ
A
mA
Outputs high
50
–50
–100
–50
–180
–50
Outputs high
Outputs low
Outputs disabled
2
2
2
ICC
A or B ports
32
2
32
2
32
2
mA
Data inputs
Outputs enabled
1
1.5
1
ICC#
Outputs disabled
0.05
0.05
0.05
mA
Control inputs
1.5
1.5
1.5
Ci
Cio
Control inputs
A or B ports
pF
pF
All typical values are at VCC = 5 V.
On products compliant to MIL-STD-883, Class B, this parameter does not apply.
§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.
P
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