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參數(shù)資料
| 型號： | SN74AHCT245DGV |
| 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)： | 3/19頁 |
| 文件大?。?/td> | 739K |
| 代理商： | SN74AHCT245DGV |
SCLS233N OCTOBER 1995 REVISED MARCH 2005
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 4)
SN54AHCT245
MIN
SN74AHCT245
MIN
UNIT
MAX
MAX
VCC
VIH
VIL
VI
VO
IOH
IOL
t/
v
TA
NOTE 4: 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.
Supply voltage
4.5
5.5
4.5
5.5
V
High-level input voltage
2
2
V
Low-level input voltage
0.8
0.8
V
Input voltage
0
5.5
0
5.5
V
Output voltage
0
VCC
8
0
VCC
8
V
High-level output current
mA
Low-level output current
8
8
mA
Input transition rise or fall rate
20
20
ns/V
°
C
Operating free-air temperature
55
125
40
85
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25
°
C
TYP
SN54AHCT245
SN74AHCT245
UNIT
MIN
4.4
MAX
MIN
4.4
MAX
MIN
4.4
MAX
VOH
IOH = 50 A
IOH = 8 mA
IOL = 50 A
IOL = 8 mA
VI = 5.5 V or GND
VO = VCC or GND
VI = VCC or GND,
One input at 3.4 V,
Other inputs at
VCC or GND
VI = VCC or GND
VI = VCC or GND
4.5 V
4.5
V
3.94
3.8
3.8
VOL
4.5 V
0.1
0.1
0.1
V
0.36
±
0.1
0.44
±
1*
0.44
±
1
II
IOZ
ICC
OE or DIR
A or B inputs
0 V to 5.5 V
A
5.5 V
±
0.25
±
2.5
±
2.5
A
IO = 0
5.5 V
4
40
40
A
ICC
5.5 V
1.35
1.5
1.5
mA
Ci
Cio
OE or DIR
5 V
2.5
10
10
pF
A or B inputs
5 V
4
pF
* On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.
For I/O ports, the parameter IOZ includes the input leakage current.
This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC.
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| SN74AHCT245DGVR | 功能描述:總線收發(fā)器 Tri-State Octal Bus RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| SN74AHCT245DGVRE4 | 功能描述:總線收發(fā)器 Octal Bus Trnscvrs With 3-State Outputs RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| SN74AHCT245DGVRG4 | 功能描述:總線收發(fā)器 Octal 總線收發(fā)器 RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| SN74AHCT245DW | 功能描述:總線收發(fā)器 Tri-State Octal Bus RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| SN74AHCT245DW | 制造商:Texas Instruments 功能描述:ICS TRANSCEIVERS LOGIC ROHS COMPLIANT:Y |
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