參數(shù)資料
型號(hào)： 74HCT75N
元件分類： 通用總線功能
英文描述： IC HIGH SPEED CMOS LOGIK N/DIP16
中文描述： 集成電路高速CMOS邏輯N/DIP16
文件頁(yè)數(shù)： 2/13頁(yè)
文件大?。?/td> 80K
代理商： 74HCT75N
1998 Sep 30
2
Philips Semiconductors
Product specification
Quad 2-input multiplexer; 3-state
74HC/HCT257
FEATURES
Non-inverting data path
3-state outputs interface directly with system bus
Output capability: bus driver
I
CC
category: MSI
GENERAL DESCRIPTION
The 74HC/HCT257 are high-speed Si-gate CMOS devices
and are pin compatible with low power Schottky TTL
(LSTTL). They are specified in compliance with JEDEC
standard no. 7A.
The 74HC/HCT257 have four identical 2-input multiplexers
with 3-state outputs, which select 4 bits of data from two
sources and are controlled by a common data select
input (S).
The data inputs from source 0 (1I
0
to 4I
0
) are selected
when input S is LOW and the data inputs from source 1
(1I
1
to 4I
1
) are selected when S is HIGH. Data appears at
the outputs (1Y to 4Y) in true (non-inverting) form from the
selected inputs.
The “257” is the logic implementation of a 4-pole,
2-position switch, where the position of the switch is
determined by the logic levels applied to S. The outputs
are forced to a high impedance OFF-state when OE is
HIGH.
The logic equations for the outputs are:
1Y = OE.(1I
1
.S
+
1I
0
.S)
2Y = OE.(2I
1
.S
+
2I
0
.S)
3Y = OE.(3I
1
.S
+
3I
0
.S)
4Y = OE.(4I
1
.S
+
4I
0
.S)
The “257” is identical to the “258” but has non-inverting
(true) outputs.
QUICK REFERENCE DATA
GND = 0 V; T
amb
= 25
°
C; t
r
= t
f
= 6 ns
Notes
1.
C
PD
is used to determine the dynamic power dissipation (P
D
in
μ
W):
P
D
= C
PD
×
V
CC2
×
f
i
+ ∑
(C
L
×
V
CC2
×
f
o
) where:
f
i
= input frequency in MHz
f
o
= output frequency in MHz
∑
(C
L
×
V
CC2
×
f
o
) = sum of outputs
C
L
= output load capacitance in pF
V
CC
= supply voltage in V
For HC the condition is V
I
= GND to V
CC
For HCT the condition is V
I
= GND to V
CC
1.5 V
2.
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
HC
HCT
t
PHL
/ t
PLH
propagation delay
nI
0
, nI
1
to nY
S to nY
input capacitance
power dissipation capacitance per multiplexer
C
L
= 15 pF; V
CC
= 5 V
11
14
3.5
45
13
17
3.5
45
ns
ns
pF
pF
C
I
C
PD
notes 1 and 2
相關(guān)PDF資料
PDF描述
74HCT9014D-T Nine Bit Inverter
74HCT9015D-T Nine Bit Buffer
74HCT182D-T Look-Ahead Carry Generator
74HCT1284DB-T 4-Bit Bus Transceiver
74HCT1284D-T 4-Bit Bus Transceiver
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
74HCT7731D 功能描述:計(jì)數(shù)器移位寄存器 QUAD 64-BIT STATIC SHIFT RGST RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel
74HCT7731D,112 功能描述:計(jì)數(shù)器移位寄存器 QUAD 64-BIT STATIC RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel
74HCT7731D,118 功能描述:計(jì)數(shù)器移位寄存器 QUAD 64-BIT STATIC RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel
74HCT7731D-T 功能描述:計(jì)數(shù)器移位寄存器 QUAD 64-BIT STATIC SHIFT RGST RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel
74HCT7731N 功能描述:計(jì)數(shù)器移位寄存器 QUAD 64-BIT STATIC SHIFT RGST RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*