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參數(shù)資料
| 型號： | IDT74FCT2157CTPB |
| 廠商： | Integrated Device Technology, Inc. |
| 英文描述： | FAST CMOS QUAD 2-INPUT MULTIPLEXER |
| 中文描述： | 快速CMOS四路2輸入多路復(fù)用器 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大小： | 135K |
| 代理商： | IDT74FCT2157CTPB |
Integrated Device Technology, Inc.
DESCRIPTION:
The FCT157T, FCT257T/FCT2257T are high-speed quad
2-input multiplexers built using an advanced dual metal CMOS
technology. Four bits of data from two sources can be
selected using the common select input. The four buffered
outputs present the selected data in the true (non-inverting)
form.
The FCT157T has a common, active-LOW, enable input.
When the enable input is not active, all four outputs are held
LOW. A common application of ‘FCT157T is to move data
from two different groups of registers to a common bus.
Another application is as a function generator. The ‘FCT157T
can generate any four of the 16 different functions of two
variables with one variable common.
The FCT257T/FCT2257T have a common Output Enable
(
OE
) input. When
OE
is HIGH, all outputs are switched to a
high-impedance state allowing the outputs to interface directly
with bus-oriented systems.
The FCT2257T has balanced output drive with current
limiting resistors. This offers low ground bounce, minimal
undershoot and controlled output fall times-reducing the need
for external series terminating resistors. FCT2xxxT parts are
plug-in replacements for FCTxxxT parts.
FAST CMOS
QUAD 2-INPUT
MULTIPLEXER
IDT54/74FCT157T/AT/CT/DT
IDT54/74FCT257T/AT/CT/DT
IDT54/74FCT2257T/AT/CT
MILITARY AND COMMERCIAL TEMPERATURE RANGES
JUNE 1996
1
1996 Integrated Device Technology, Inc.
6.6
2537/6
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FEATURES:
Common features:
–
Low input and output leakage
≤
1
μ
A (max.)
–
CMOS power levels
–
True TTL input and output compatibility
– V
OH
= 3.3V (typ.)
– V
OL
= 0.3V (typ.)
–
Meets or exceeds JEDEC standard 18 specifications
–
Product available in Radiation Tolerant and Radiation
Enhanced versions
–
Military product compliant to MIL-STD-883, Class B
and DESC listed (dual marked)
–
Available in DIP, SOIC, SSOP, QSOP, CERPACK
and LCC packages
Features for FCT157T/257T:
–
Std., A, C and D speed grades
–
High drive outputs (-15mA I
OH
, 48mA I
OL
)
Features for FCT2257T:
–
Std., A, and C speed grades
–
Resistor outputs
(-15mA I
OH
, 12mA I
OL
Com.)
(-12mA I
OH
, 12mA I
OL
Mil.)
–
Reduced system switching noise
E
157 Only
3 other multiplexers
OE
257 Only
Z
A
Z
B
–Z
D
S
I
1B
–I
1D
I
0B
–I
0D
I
1A
I
0A
2537 drw 01
2537 drw 02
2537 drw 03
FUNCTIONAL BLOCK DIAGRAM
PIN CONFIGURATIONS
LCC
TOP VIEW
4
5
6
7
8
L20-2
18
17
16
15
14
9 10 11 12 13
3
2
1
20 19
INDEX
G
N
V
E
N
NC
I
0B
I
1B
NC
Z
C
I
0D
S
I
0
I
1A
Z
A
Z
B
Z
D
I
1
I
0C
I
1C
DIP/SOIC/QSOP/CERPACK
TOP VIEW
5
6
7
8
S
I
0A
I
1A
Z
A
I
0B
I
1B
Z
1
2
3
4
16
15
14
13
12
11
10
9
Vcc
E or OE*
I
0C
I
1C
Z
C
I
0D
I
Z
D
P16-1,
D16-1,
SO16-1,
SO16-7
&
E16-1
GND
B
1D
*
E
for FCT157,
OE
for FCT257/FCT2257.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IDT74FCT2240ATSO | 制造商:Integrated Device Technology Inc 功能描述: |
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| IDT74FCT2244ATQG | 功能描述:IC BUFF/DVR DUAL N-INV 20QSOP RoHS:是 類別:集成電路 (IC) >> 邏輯 - 緩沖器，驅(qū)動器，接收器，收發(fā)器 系列:74FCT 標準包裝:2,000 系列:74LVCH 邏輯類型:緩沖器/線路驅(qū)動器，非反相 元件數(shù):2 每個元件的位元數(shù):4 輸出電流高，低:24mA，24mA 電源電壓:1.65 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:20-SOIC 包裝:帶卷 (TR) |
| IDT74FCT2244ATQG8 | 功能描述:IC BUFF/DVR DUAL N-INV 20QSOP RoHS:是 類別:集成電路 (IC) >> 邏輯 - 緩沖器，驅(qū)動器，接收器，收發(fā)器 系列:74FCT 標準包裝:47 系列:74LVX 邏輯類型:緩沖器/線路驅(qū)動器，非反相 元件數(shù):4 每個元件的位元數(shù):1 輸出電流高，低:4mA，4mA 電源電壓:2 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:管件 |
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