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參數(shù)資料
| 型號(hào)： | SN54ABT657A |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Octal Transceivers With Parity-Generators/Checkers and 3-State Outputs(八收發(fā)器(帶奇偶發(fā)生器/校驗(yàn)器)) |
| 中文描述： | 八路收發(fā)器與Parity-Generators/Checkers和三態(tài)輸出（八收發(fā)器（帶奇偶發(fā)生器/校驗(yàn)器）） |
| 文件頁(yè)數(shù)： | 6/9頁(yè) |
| 文件大?。?/td> | 219K |
| 代理商： | SN54ABT657A |
SN54ABT657A, SN74ABT657A
OCTAL TRANSCEIVERS WITH PARITY GENERATORS/CHECKERS
AND 3-STATE OUTPUTS
SCBS192E – JANUARY 1991 – REVISED JUNE 1997
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TA = 25
°
C
TYP
SN54ABT657A
MIN
SN74ABT657A
MIN
UNIT
MIN
MAX
MAX
MAX
VIK
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 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
VCC= 4 5 V
VCC = 4.5 V
2
2
2*
2
VOL
VCC= 4 5 V
VCC = 4.5 V
0.55
0.55
V
0.55*
0.55
Vhys
100
mV
II
Control inputs
VCC = 0 to 5.5 V, VI = VCC or GND
VCC = 2.1 V to 5.5 V, VI = VCC or GND
VCC = 0 to 2.1 V, VO = 0.5 V to 2.7 V,
OE = X
±
1
±
1
±
1
μ
A
A or B ports
±
20
±
20
±
20
IOZPU
±
50
±
50
±
50
μ
A
IOZPD
VCC = 2.1 V to 0, VO = 0.5 V to 2.7 V,
OE = X
±
50
±
50
±
50
μ
A
IOZH§
VCC = 2.1 V to 5.5 V, VO = 2.7 V,
OE
≥
2 V
10
10
10
μ
A
IOZL§
VCC = 2.1 V to 5.5 V, VO = 0.5 V,
OE
≥
2 V
–10
–10
–10
μ
A
Ioff
VCC = 0,
VCC = 5.5 V,
VO = 5.5 V
VCC = 5.5 V,
VI or VO
≤
4.5 V
±
100
±
100
μ
A
ICEX
Outputs high
50
50
50
μ
A
IO
VO = 2.5 V
Outputs high
–50
–100
–200
–50
–200
–50
–200
mA
μ
A
mA
μ
A
ICC
VCC = 5.5 V,
IO
VI = VCC or GND
250
250
250
Outputs low
40
40
40
Outputs disabled
250
250
250
Data inputs
VCC = 5.5 V,
One input at 3.4 V,
Other inputs at
VCC or GND
VCC = 5.5 V, One 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
Outputs enabled
1.5
1.5
1.5
ICC#
Outputs disabled
0.25
0.25
0.25
mA
Control inputs
1.5
1.5
1.5
Ci
Cio
Control inputs
4
pF
A or B ports
10
pF
* On products compliant to MIL-PRF-38535, this parameter does not apply.
All typical values are at VCC = 5 V.
This parameter is characterized, but not production tested.
§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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| SN54ABT657AFK | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL TRANSCEIVERS WITH PARITY GENERATORS/CHECKERS AND 3-STATE OUTPUTS |
| SN54ABT657AJT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL TRANSCEIVERS WITH PARITY GENERATORS/CHECKERS AND 3-STATE OUTPUTS |
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