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參數(shù)資料
| 型號： | N74F253N |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 通用總線功能 |
| 英文描述： | Dual 4-bit input multiplexer (3-State) |
| 封裝： | N74F253D<SOT109-1 (SO16)|<<http://www.nxp.com/packages/SOT109-1.html<1<week 6, 2004,;N74F253D<SOT109-1 (SO16)|<<http://www.nxp.com/packages/SOT109-1.html<1<week 6, |
| 文件頁數(shù)： | 2/10頁 |
| 文件大?。?/td> | 89K |
| 代理商： | N74F253N |
Philips Semiconductors
Product specification
74F253
Dual 4-input multiplexer (3-State)
2
1988 Nov 29
853–0101 95206
FEATURES
3-State outputs for bus interface and multiplex expansion
Common select inputs
Separate Output Enable Inputs
DESCRIPTION
The 74F253 has two identical 4-input multiplexers with 3-State
outputs which select two bits from four sources selected by common
Select inputs (S0, S1). When the individual Output Enable (OEa,
OEb) inputs of the 4-input multiplexers are High, the outputs are
forced to a high impedance (Hi-Z) state.
The 74F253 is the logic implementation of a 2-pole, 4-position
switch; the position of the switch being determined by the logic
levels supplied to the two common Select inputs.
To avoid exceeding the maximum current ratings when the outputs
of the 3-State devices are tied together, all but one device must be
in the high-impedance state. Therefore, only one Output Enable
must be active at a time.
PIN CONFIGURATION
16
15
14
13
12
11
10
7
6
5
4
3
2
1
Ya
V
CC
I2b
I1b
I0b
I3b
OEb
S0
OEa
S1
I0a
I3a
I2a
I1a
9
8
GND
Yb
SF00798
TYPE
TYPICAL
PROPAGATION
DELAY
TYPICAL
SUPPLY CURRENT
(TOTAL)
74F253
7.0ns
12mA
ORDERING INFORMATION
COMMERCIAL RANGE
DESCRIPTION
V
CC
= 5V
±
10%,
T
amb
= 0
°
C to +70
°
C
N74F253N
PKG DWG #
16-pin plastic DIP
SOT38-4
16-pin plastic SO
N74F253D
SOT109-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F (U.L.) HIGH/LOW
LOAD VALUE HIGH/LOW
I0a–I3a
Port A data inputs
1.0/1.0
20
μ
A/0.6mA
20
μ
A/0.6mA
20
μ
A/0.6mA
20
μ
A/0.6mA
20
μ
A/0.6mA
I0b–I3b
Port B data inputs
1.0/1.0
S0, S1
Common Select inputs
1.0/1.0
OEa
Port A Output Enable input (active Low)
1.0/1.0
OEb
Port B Output Enable input (active Low)
1.0/1.0
Ya, Yb
3-State outputs
150/40
3mA/24mA
NOTE:
One (1.0) FAST unit load is defined as: 20
μ
A in the High state and 0.6mA in the Low state.
LOGIC SYMBOL
3
4
5
V
= Pin 16
GND = Pin 8
SF00799
9
7
14
2
1
S0
S1
OEa
15
6
13
12
11
10
OEb
Ya
Yb
I0a
I1a
I2a
I3a
I0b
I1b
I2b
I3b
IEC/IEEE SYMBOL
SF00800
MUX
1
6
15
10
11
7
9
0
5
2
EN
4
3
13
12
1
3
0
G0
3
1
14
2
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| N74F253N,602 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 DUAL 4-INPUT MULTPLX 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 |
| N74F256D | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual addressable latch |
| N74F256N | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual addressable latch |
| N74F257AD | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 QUAD 2 TO 1 MUX 3-S 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 |
| N74F257AD,602 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 QUAD 2 TO 1 MUX 3-S 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 |
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