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參數(shù)資料
| 型號： | SN74HC540DBRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | HC/UH SERIES, 8-BIT DRIVER, INVERTED OUTPUT, PDSO20 |
| 封裝： | GREEN, PLASTIC, SSOP-20 |
| 文件頁數(shù)： | 13/17頁 |
| 文件大?。?/td> | 640K |
| 代理商： | SN74HC540DBRG4 |
SN54HC540, SN74HC540
OCTAL BUFFERS AND LINE DRIVERS
WITH 3STATE OUTPUTS
SCLS007D MARCH 1984 REVISED AUGUST 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
VOLTAGE WAVEFORM
INPUT RISE AND FALL TIMES
50%
10%
90%
VCC
0 V
tr
tf
Input
VOLTAGE WAVEFORMS
PROPAGATION DELAY AND OUTPUT TRANSITION TIMES
50%
10%
90%
VCC
VOH
VOL
0 V
tr
tf
Input
In-Phase
Output
50%
tPLH
tPHL
50%
10%
90%
VOH
VOL
tr
tf
tPHL
tPLH
Out-of-Phase
Output
50%
10%
90%
VCC
≈VCC
VOL
0 V
Output
Control
(Low-Level
Enabling)
Output
Waveform 1
(See Note B)
50%
tPZL
tPLZ
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES FOR 3-STATE OUTPUTS
VOH
≈0 V
50%
tPZH
tPHZ
Output
Waveform 2
(See Note B)
≈VCC
Test
Point
From Output
Under Test
CL
(see Note A)
RL
VCC
S1
S2
LOAD CIRCUIT
PARAMETER
CL
tPZH
tpd or tt
tdis
ten
tPZL
tPHZ
tPLZ
1 k
1 k
50 pF
or
150 pF
50 pF
Open
Closed
RL
S1
Closed
Open
S2
Open
Closed
Open
50 pF
or
150 pF
Open
NOTES: A. CL includes probe and test-fixture capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following
characteristics: PRR
≤ 1 MHz, ZO = 50 , tr = 6 ns, tf = 6 ns.
D. The outputs are measured one at a time with one input transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
Figure 1. Load Circuit and Voltage Waveforms
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74HC540DW | 功能描述:緩沖器和線路驅(qū)動器 Octal w/Tri-St Out 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 |
| SN74HC540DW | 制造商:Texas Instruments 功能描述:ICS BUFFERS/DRIVERS/RECEIVERS LOGIC LOG |
| SN74HC540DWE4 | 功能描述:緩沖器和線路驅(qū)動器 Octal Buff/Line Drvr W/3-State Otpt 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 |
| SN74HC540DWG4 | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffers And Line 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 |
| SN74HC540DWR | 功能描述:緩沖器和線路驅(qū)動器 Tri-State Octal 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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