參數(shù)資料
型號： IDT74FST3257Q
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： 通用總線功能
英文描述： QUAD 2:1 MUX/DEMUX BUS SWITCH
中文描述： CBT/FST/QS/5C/B SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER AND DEMUX/DECODER, TRUE OUTPUT, PDSO16
封裝： QSOP-16
文件頁數(shù)： 3/5頁
文件大?。?/td> 93K
代理商： IDT74FST3257Q
10.3
3
IDT54/74FST3257
QUAD 2:1 MUX/DEMUX BUS SWITCH
COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Commercial: T
A
= –40
°
C to +85
°
C, V
CC
= 5.0V
±
5%
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 5.0V, +25
°
C ambient.
3. Per TTL driven input (V
IN
= 3.4V). All other inputs at V
CC
or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the I
CC
formula. These limits are guaranteed but not tested.
6. I
C
= I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+
I
CC
D
H
N
T
+ I
CCD
(f
i
N)
I
CC
= Quiescent Current
I
CC
= Power Supply Current for a TTL High Input (V
IN
= 3.4V)
D
H
= Duty Cycle for TTL Inputs High
N
T
= Number of TTL Inputs at D
H
I
CCD
= Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
f
i
= Input Frequency
N = Number of Switches Toggling at f
i
All currents are in milliamps and all frequencies are in megahertz.
Symbol
I
CC
Parameter
Test Conditions
(1)
Min.
—
Typ.
(2)
0.5
Max.
1.5
Unit
mA
Quiescent Power Supply Current
TTL Inputs HIGH
Dynamic Power Supply
Current
(4)
V
CC
= Max.
V
IN
= 3.4V
(3)
V
CC
= Max.
Outputs Open
Enable Pin Toggling
50% Duty Cycle
V
CC
= Max.
Outputs Open
Enable Pin Toggling
(4 Switches Toggling)
fi = 10MHz
50% Duty Cycle
I
CCD
V
IN
= V
CC
V
IN
= GND
—
30
40
μ
A/
MHz/
Switch
I
C
Total Power Supply Current
(6)
V
IN
= V
CC
V
IN
= GND
—
1.2
1.6
mA
V
IN
= 3.4
V
IN
= GND
—
1.5
2.4
3257 tbl 06
Symbol
t
PLH
t
PHL
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
|Q
CI
|
|Q
CDI
|
Description
Condition
(1)
C
L
= 50pF
R
L
= 500
Min.
(2)
—
Typ.
—
Max.
0.25
Unit
ns
Data Propagation Delay
I to Z, Z to I
(3,4)
Switch Multiplex Delay
S to I, Z
Switch Turn on Delay
E
to I, Z
Switch Turn off Delay
E
to I, Z
(3)
Charge Injection, Typical
(5,6)
Charge Injection, Typical
(6,7)
1.5
—
5.2
ns
1.5
—
4.8
ns
1.5
—
5.0
ns
—
—
1.5
0.5
—
—
pC
pC
NOTES:
1. See test circuit and waveforms.
2. Minimum limits guaranteed but not tested.
3. This parameter is guaranteed by design but not tested.
4. The bus switch contributes no propagation delay other than the RC delay of the on resistance of the switch and the load capacitance. The time constant
for the switch alone is of the order of 0.25 ns for 50 pF load. Since this time is constant and much smaller than the rise/fall times of typical driving signals,
it adds very little propagation delay to the system. Propagation delay of the bus switch when used in a system is determined by the driving circuit on the
driving side of the switch and its interaction with the load on the driven side.
5. Measured at switch turn off, load = 50 pF in parallel with 10 m
scope probe, V
IN
= 0.0 volts.
6. Measured at switch turn off through bus multiplexer, (e.g.- I
0
to Z = > I
1
to Z), load = 50 pF in parallel with 10 M
scope probe, V
IN
at A = 0.0 volts. Charge
injection is reduced because the injection from the turn off of the I
0
to Z switch is compensated by the turn on of the I
1
to Z switch.
7. Characterized parameter. Not 100% tested.
3257 tbl 07
相關(guān)PDF資料
PDF描述
IDT74LVC07A Adjustable Precision Shunt Regulator 3-SOT-23 -40 to 85
IDT74LVC07ADC Adjustable Precision Shunt Regulator 6-SC70 -40 to 85
IDT74LVC07APG Adjustable Precision Shunt Regulator 6-SC70 -40 to 85
IDT74LVC07APY Adjustable Precision Shunt Regulator 6-SC70 -40 to 85
IDT74LVC08APG Adjustable Precision Shunt Regulator 6-SC70 -40 to 85
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IDT74FST32XL2384PAG 功能描述:IC BUS SWITCH 20BIT 48-TSSOP RoHS:是 類別:集成電路 (IC) >> 邏輯 - 信號開關(guān)，多路復(fù)用器，解碼器 系列:74FST 標(biāo)準(zhǔn)包裝:48 系列:74VHC 類型:多路復(fù)用器 電路:4 x 2:1 獨(dú)立電路:1 輸出電流高，低:8mA，8mA 電壓電源:單電源 電源電壓:2 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件
IDT74FST32XL2384PAG8 功能描述:IC BUS SWITCH 20BIT 48-TSSOP RoHS:是 類別:集成電路 (IC) >> 邏輯 - 信號開關(guān)，多路復(fù)用器，解碼器 系列:74FST 標(biāo)準(zhǔn)包裝:48 系列:74VHC 類型:多路復(fù)用器 電路:4 x 2:1 獨(dú)立電路:1 輸出電流高，低:8mA，8mA 電壓電源:單電源 電源電壓:2 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件
IDT74FST32XL384PAG 功能描述:IC BUS SWITCH 20BIT 48-TSSOP RoHS:是 類別:集成電路 (IC) >> 邏輯 - 信號開關(guān)，多路復(fù)用器，解碼器 系列:74FST 標(biāo)準(zhǔn)包裝:48 系列:74VHC 類型:多路復(fù)用器 電路:4 x 2:1 獨(dú)立電路:1 輸出電流高，低:8mA，8mA 電壓電源:單電源 電源電壓:2 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件
IDT74FST32XL384PAG8 功能描述:IC BUS SWITCH 20BIT 48-TSSOP RoHS:是 類別:集成電路 (IC) >> 邏輯 - 信號開關(guān)，多路復(fù)用器，解碼器 系列:74FST 標(biāo)準(zhǔn)包裝:48 系列:74VHC 類型:多路復(fù)用器 電路:4 x 2:1 獨(dú)立電路:1 輸出電流高，低:8mA，8mA 電壓電源:單電源 電源電壓:2 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件
IDT74FST32XL384PV 制造商:Integrated Device Technology Inc 功能描述:BUS Switch, 48 Pin, Plastic, SSOP
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

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

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

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*