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參數(shù)資料
| 型號： | SN54AHC245J |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| 中文描述： | 八路總線收發(fā)器與三態(tài)輸出 |
| 文件頁數(shù)： | 3/18頁 |
| 文件大小： | 573K |
| 代理商： | SN54AHC245J |
SN54AHC245, SN74AHC245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS230I
–
OCTOBER 1995
–
REVISED JULY 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54AHC245
MIN
SN74AHC245
MIN
UNIT
MAX
MAX
VCC
Supply voltage
2
5.5
2
5.5
V
VCC = 2 V
VCC = 3 V
VCC = 5.5 V
VCC = 2 V
VCC = 3 V
VCC = 5.5 V
OE or DIR
1.5
1.5
VIH
High-level input voltage
2.1
2.1
V
3.85
3.85
0.5
0.5
VIL
Low-level input voltage
0.9
0.9
V
1.65
1.65
VI
VO
Input voltage
0
5.5
0
5.5
V
Output voltage
A or B
0
VCC
–
50
0
VCC
–
50
V
VCC = 2 V
VCC = 3.3 V
±
0.3 V
VCC = 5 V
±
0.5 V
VCC = 2 V
VCC = 3.3 V
±
0.3 V
VCC = 5 V
±
0.5 V
VCC = 3.3 V
±
0.3 V
VCC = 5 V
±
0.5 V
A
IOH
High-level output current
–
4
–
4
mA
–
8
–
8
50
50
A
IOL
Low-level output current
4
4
mA
8
8
/
t
v
Input transition rise or fall rate
100
100
ns/V
20
20
TA
Operating free-air temperature
–
55
125
–
40
85
°
C
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs
, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25
°
C
TYP
SN54AHC245
MIN
1.9
SN74AHC245
MIN
1.9
UNIT
MIN
1.9
MAX
MAX
MAX
2 V
2
IOH =
–
50 A
3 V
2.9
3
2.9
2.9
VOH
4.5 V
4.4
4.5
4.4
4.4
V
IOH =
–
4 mA
IOH =
–
8 mA
3 V
2.58
2.48
2.48
4.5 V
3.94
3.8
3.8
2 V
0.1
0.1
0.1
IOL = 50 A
3 V
0.1
0.1
0.1
VOL
4.5 V
0.1
0.1
0.1
V
IOL = 4 mA
IOL = 8 mA
3 V
0.36
0.5
0.44
4.5 V
0.36
±
0.1
±
0.1
0.5
±
1
±
1*
0.44
±
1
±
1
II
A or B inputs
VI = VCC or GND
5.5 V
A
OE or DIR
0 V to 5.5 V
IOZ
VO = VCC or GND,
VI (OE) = VIL or VIH
VI = VCC or GND,
VI = VCC or GND
VI = VCC or GND
5.5 V
±
0.25
±
2.5
±
2.5
A
ICC
Ci
Cio
* On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.
The parameter IOZ includes the input leakage current.
IO = 0
5.5 V
4
40
40
A
OE or DIR
A or B inputs
5 V
2.5
10
10
pF
5 V
4
pF
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相關代理商/技術參數(shù) |
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| SN54AHC245W | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
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| SN54AHC257J | 制造商:TI 制造商全稱:Texas Instruments 功能描述:QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS |
| SN54AHC257W | 制造商:TI 制造商全稱:Texas Instruments 功能描述:QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS |
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