74LVX257TTR STMicroelectronics, 74LVX257TTR Datasheet

IC MUX QUAD 2 CHAN 3ST 16-TSSOP

74LVX257TTR

Manufacturer Part Number
74LVX257TTR
Description
IC MUX QUAD 2 CHAN 3ST 16-TSSOP
Manufacturer
STMicroelectronics
Series
74LVXr
Type
Multiplexerr
Datasheet

Specifications of 74LVX257TTR

Circuit
4 x 2:1
Independent Circuits
1
Current - Output High, Low
4mA, 4mA
Voltage Supply Source
Single Supply
Voltage - Supply
2 V ~ 3.6 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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

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74LVX257TTR Summary of contents

Page 1

... 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. 74LVX257 SOP TSSOP PACKAGE T & R SOP 74LVX257MTR TSSOP 74LVX257TTR Rev. 3 1/13 ...

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 ...

Page 3

Table 4: Absolute Maximum Ratings Symbol V Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Current ...

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 ...

Page 5

Table 9: Capacitive Characteristics Symbol Parameter C Input Capacitance IN C Output OUT Capacitance C Power Dissipation PD Capacitance (note defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating ...

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 ...

Page 9

TSSOP16 MECHANICAL DATA DIM. MIN 0.05 A2 0.8 b 0.19 c 0.09 D 4.9 E 6 0˚ PIN 1 IDENTIFICATION 1 mm. TYP MAX. 1.2 0.15 1 1.05 ...

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 ...

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 ...

Page 12

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

Page 13

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics ...

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