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參數(shù)資料
| 型號： | SN74BCT244DBR |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS |
| 中文描述： | 八路緩沖器/ 3司機(jī)態(tài)輸出 |
| 文件頁數(shù)： | 3/17頁 |
| 文件大?。?/td> | 522K |
| 代理商： | SN74BCT244DBR |
SN54BCT244, SN74BCT244
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS006E – OCTOBER 1987 – REVISED APRIL 1994
2–3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
SN54BCT244
MIN
NOM
SN74BCT244
MIN
NOM
UNIT
MAX
MAX
VCC
VIH
VIL
IIK
IOH
IOL
TA
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
High-level input voltage
2
2
V
Low-level input voltage
0.8
0.8
V
Input clamp current
–18
–18
mA
High-level output current
–12
–15
mA
Low-level output current
48
64
mA
°
C
Operating free-air temperature
–55
125
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54BCT244
TYP
SN74BCT244
TYP
UNIT
MIN
MAX
MIN
MAX
VIK
VCC = 4.5 V,
II = –18 mA
IOH = –3 mA
IOH = –12 mA
IOH = –15 mA
IOL = 48 mA
IOL = 64 mA
VI = 7 V
VI = 2.7 V
VI = 0.5 V
VO = 2.7 V
VO = 0.5 V
VO = 0
Outputs open
–1.2
–1.2
V
2.4
3.3
2.4
3.3
VOH
VCC = 4.5 V
2
3.2
V
2
3.1
VOL
VCC= 4 5 V
VCC = 4.5 V
0.38
0.55
V
0.42
0.55
II
IIH
IIL
IOZH
IOZL
IOS
ICCH
ICCL
ICCZ
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
0.1
0.1
mA
μ
A
mA
μ
A
μ
A
mA
20
20
–1
–1
50
50
–50
–50
–100
–225
–100
–225
23
40
23
40
mA
Outputs open
53
80
53
80
mA
Outputs open
4
10
4
10
mA
All typical values are at VCC = 5 V.
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74BCT244DBRE4 | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffer/Driver With 3-State Outputs RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74BCT244DBRG4 | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffrs Drivers RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74BCT244DW | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffer/Driver With 3-State Outputs RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74BCT244DWE4 | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffer/Driver With 3-State Outputs RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74BCT244DWG4 | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffrs Drivers RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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