74lvx257 STMicroelectronics, 74lvx257 Datasheet

no-image

74lvx257

Manufacturer Part Number
74lvx257
Description
Low Voltage Cmos Quad 2 Channel Multiplexer 3-state With 5v Tolerant Inputs
Manufacturer
STMicroelectronics
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
74LVX257
Manufacturer:
ON
Quantity:
11
Part Number:
74LVX257
Manufacturer:
ST
0
DESCRIPTION
The 74LVX257 is a low voltage CMOS QUAD 2
CHANNEL MULTIPLEXER (3-STATE) fabricated
with sub-micron silicon gate and double-layer
metal wiring C
power, battery operated and low noise 3.3V
applications.
It is composed of four independent 2-channel
multiplexers with common SELECT and ENABLE
(OE) INPUT. The 74LVX257 is a non-inverting
Figure 1: Pin Connection And IEC Logic Symbols
August 2004
HIGH SPEED:
t
5V TOLERANT INPUTS
POWER-DOWN PROTECTION ON INPUTS
INPUT VOLTAGE LEVEL:
V
LOW POWER DISSIPATION:
I
LOW NOISE:
V
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
OPERATING VOLTAGE RANGE:
V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 257
IMPROVED LATCH-UP IMMUNITY
PD
CC
PLH
OH
IL
OLP
CC
LOW VOLTAGE CMOS QUAD 2 CHANNEL MULTIPLEXER
=5.8ns (TYP.) at V
= 0.8V, V
= 4 A (MAX.) at T
| = I
(OPR) = 2V to 3.6V (1.2V Data Retention)
= 0.3V (TYP.) at V
t
PHL
OL
= 4 mA (MIN) at V
2
MOS technology. It is ideal for low
IH
= 2V at V
CC
A
=25°C
CC
CC
= 3.3V
=3.3V
=3V
CC
=3V
(3-STATE) WITH 5V TOLERANT INPUTS
Table 1: Order Codes
multiplexer. When the ENABLE INPUT is held
"High", all outputs become in high impedance
state. If SELECT INPUT is held "Low", "A" data is
selected, when SELECT INPUT is "High", "B" data
is chosen.
Power down protection is provided on all inputs
and 0 to 7V can be accepted on inputs with no
regard to the supply voltage.
This device can be used to interface 5V to 3V. It
combines high speed performance with the true
CMOS low power consumption.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
PACKAGE
TSSOP
SOP
SOP
74LVX257
Rev. 3
74LVX257MTR
74LVX257TTR
TSSOP
T & R
1/13

Related parts for 74lvx257

74lvx257 Summary of contents

Page 1

... Data Retention) CC PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 257 IMPROVED LATCH-UP IMMUNITY DESCRIPTION The 74LVX257 is a low voltage CMOS QUAD 2 CHANNEL MULTIPLEXER (3-STATE) fabricated with sub-micron silicon gate and double-layer 2 metal wiring C MOS technology ideal for low power, battery operated and low noise 3.3V applications ...

Page 2

... Figure 2: Input Equivalent Circuit Table 3: Truth Table OE SELECT :Don‘t Care Z : High Impedance Figure 3: Logic Diagram This logic diagram has not be used to estimate propagation delays 2/13 Table 2: Pin Description PIN N° 11 10 ...

Page 3

... Value -55 to 125 0 to 100 Value = 25°C -40 to 85°C -55 to 125°C A Typ. Max. Min. Max. Min. 1.5 1.5 2.0 2.0 2.4 2.4 0.5 0.5 0.8 0.8 0.8 0.8 2.0 1.9 1.9 3.0 2.9 2.9 2.48 2.4 0.0 0.1 0.1 0.0 0.1 0.1 0.36 0.44 0.25 2.5 0 74LVX257 Unit °C °C Unit °C ns/V Unit Max. V 0.5 0.8 V 0.8 V 0.1 0 3/13 ...

Page 4

... Table 7: Dynamic Switching Characteristics Symbol Parameter V Dynamic Low OLP Voltage Quiet V OLV Output (note 1, 2) Dynamic High V Voltage Input IHD (note 1, 3) Dynamic Low V Voltage Input ILD (note Worst case package. 2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.3V, (n-1) outputs switching and one output at GND. ...

Page 5

... T OUT Test Condition (V) Min. 3.3 3.3 3.3 TEST Value = 25°C -40 to 85°C -55 to 125°C A Typ. Max. Min. Max. Min CC(opr SWITCH Open V GND 74LVX257 Unit Max (per 5/13 ...

Page 6

... Figure 5: Waveform - Propagation Delays For Inverting Conditions (f=1MHz; 50% duty cycle) Figure 6: Waveform - Propagation Delays For Non-inverting Conditions (f=1MHz; 50% duty cycle) 6/13 ...

Page 7

... Figure 7: Waveform - Output Enable And Disable Time (f=1MHz; 50% duty cycle) 74LVX257 7/13 ...

Page 8

... DIM. MIN 0 0. 9 3.8 G 4 8/13 SO-16 MECHANICAL DATA mm. TYP MAX. 1.75 0.25 1.64 0.46 0.25 0.5 45° (typ.) 10 6.2 1.27 8.89 4.0 5.3 1.27 0.62 8° (max.) inch MIN. TYP. 0.004 0.013 0.007 0.019 0.385 0.228 0.050 0.350 0.149 0.181 0.019 0016020D MAX. 0.068 0.010 0.063 0.018 0.010 ...

Page 9

... PIN 1 IDENTIFICATION 1 mm. TYP MAX. 1.2 0.15 1 1.05 0.30 0.20 5 5.1 6.4 6.6 4.4 4.48 0.65 BSC 8˚ 0.60 0. 74LVX257 inch MIN. TYP. 0.002 0.004 0.031 0.039 0.007 0.004 0.0079 0.193 0.197 0.244 0.252 0.169 0.173 0.0256 BSC 0˚ 0.018 0.024 0080338D MAX. 0.047 0.006 0.041 0.012 ...

Page 10

... DIM. MIN 12 6.45 Bo 10.3 Ko 2.1 Po 3.9 P 7.9 10/13 Tape & Reel SO-16 MECHANICAL DATA mm. TYP MAX. 330 13.2 22.4 6.65 10.5 2.3 4.1 8.1 inch MIN. TYP. 12.992 0.504 0.795 2.362 0.254 0.406 0.082 0.153 0.311 MAX. 0.519 0.882 0.262 0.414 0.090 0.161 0.319 ...

Page 11

... Tape & Reel TSSOP16 MECHANICAL DATA DIM. MIN 12 6.7 Bo 5.3 Ko 1.6 Po 3.9 P 7.9 mm. TYP MAX. 330 13.2 0.504 0.795 2.362 22.4 6.9 0.264 5.5 0.209 1.8 0.063 4.1 0.153 8.1 0.311 74LVX257 inch MIN. TYP. MAX. 12.992 0.519 0.882 0.272 0.217 0.071 0.161 0.319 11/13 ...

Page 12

... Table 10: Revision History Date Revision 27-Aug-2004 3 12/13 Description of Changes Ordering Codes Revision - pag. 1. ...

Page 13

... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America All other names are the property of their respective owners © 2004 STMicroelectronics - All Rights Reserved STMicroelectronics group of companies www.st.com 74LVX257 13/13 ...

Related keywords