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參數資料
| 型號： | MC74HC257D |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | Quad 2-Input Data Selector/Multiplexer with 3-State Outputs |
| 中文描述： | HC/UH SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SOIC-16 |
| 文件頁數： | 2/6頁 |
| 文件大?。?/td> | 175K |
| 代理商： | MC74HC257D |
MOTOROLA
High–Speed CMOS Logic Data
DL129 — Rev 6
2
PD
35
±
75
DC Output Current, per Pin
mA
Power Dissipation in Still Air
Plastic DIP
mA
mW
750
(Plastic DIP or SOIC Package)
* Maximum Ratings are those values beyond which damage to the device may occur.
Derating — Plastic DIP: – 10 mW/ C from 65 to 125 C
SOIC Package: – 7 mW/ C from 65 to 125 C
260
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Max
Unit
(Figure 1)
0
500
DC ELECTRICAL CHARACTERISTICS
(Voltages Referenced to GND)
Guaranteed Limit
– 55 to
3.15
VCC
Voltage
|Iout|
20
μ
A
4.5
3.15
3.15
6.0
1.2
1.2
1.2
VOH
Minimum High–Level Output
Vin = VIH or VIL
2.0
6.0
1.9
5.9
1.9
5.9
1.9
5.9
6.0 mA
3.98
3.84
3.70
V
4.5
6.0
0.1
0.1
0.1
Vin = VIH or VIL
6.0 mA
0.26
0.33
0.40
Vin = VIL or VIH
Vout = VCC or GND
|Iout|
4.5
Leakage Current
This device contains protection
circuitry to guard against damage
due to high static voltages or electric
fields. However, precautions must
be taken to avoid applications of any
voltage higher than maximum rated
voltages to this high–impedance cir-
cuit. For proper operation, Vin and
Vout should be constrained to the
range GND (Vin or Vout)
Unused inputs must always be
tied to an appropriate logic voltage
level (e.g., either GND or VCC).
Unused outputs must be left open.
VCC.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MC74HC257DR2 | 制造商:Motorola 功能描述:74HC257 |
| MC74HC257FR2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC74HC257N | 制造商:Motorola Inc 功能描述: |
| MC74HC257ND | 制造商:Motorola Inc 功能描述: |
| MC74HC259ADG | 功能描述:編碼器、解碼器、復用器和解復用器 IC MULTIPLEXER 3ST 8INPUT RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間: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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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