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參數(shù)資料
| 型號(hào)： | CY74FCT257T |
| 英文描述： | Quadruple 1-of-2 Data Selectors/Multiplexers with 3-State Outputs |
| 中文描述： | 四重1 - 2數(shù)據(jù)選擇器/多路復(fù)用3態(tài)輸出 |
| 文件頁數(shù)： | 6/7頁 |
| 文件大?。?/td> | 102K |
| 代理商： | CY74FCT257T |
CY74FCT823T
9-BIT BUS-INTERFACE REGISTER
SCCS069
–
OCTOBER 2001
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
3 V
3 V
0 V
0 V
th
tsu
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
Data Input
tPLH
tPHL
tPHL
tPLH
VOH
VOH
VOL
VOL
3 V
0 V
Input
Out-of-Phase
Output
In-Phase
Output
Timing Input
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
Output
Control
Output
Waveform 1
(see Note B)
Output
Waveform 2
(see Note B)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
≈
3.5 V
0 V
VOL
+ 0.3 V
≈
0 V
3 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
7 V
Open
TEST
S1
3 V
0 V
tw
VOLTAGE WAVEFORMS
PULSE DURATION
Input
NOTES: A. CL includes probe and jig 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. The outputs are measured one at a time with one input transition per measurement.
From Output
Under Test
CL = 50 pF
(see Note A)
LOAD CIRCUIT FOR
3-STATE OUTPUTS
S1
7 V
500
GND
From Output
Under Test
CL = 50 pF
(see Note A)
Test
Point
LOAD CIRCUIT FOR
TOTEM-POLE OUTPUTS
Open
VOH
–
0.3 V
500
500
1.5 V
1.5 V
1.5 V
1.5 V
1.5 V
1.5 V
1.5 V
1.5 V
1.5 V
1.5 V
1.5 V
1.5 V
1.5 V
1.5 V
1.5 V
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 |
|---|---|
| CY74FCT257TQC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CY74FCT257TQCT | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Quad 1-of-2 Data Slct/Mltpx W/3St Otp RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| CY74FCT257TQCTE4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Quad 1-of-2 Data Slct/Mltpx W/3St Otp RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| CY74FCT257TQCTG4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Quad 1-of-2 Data Sel Multipl RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| CY74FCT257TQSOP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS |
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