OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MC74LCX257DTR2

P1-P3P4-P6P7-P8
Semiconductor Components Industries, LLC, 2005
January, 2005 − Rev. 3
1 Publication Order Number:
MC74LCX257/D
MC74LCX257
Low−Voltage CMOS Quad
2−Input Multiplexer
With 5.0 V−Tolerant Inputs and Outputs
(3−State, Non−Inverting)
The MC74LCX257 is a high performance, quad 2−input
multiplexer with 3−state outputs operating from a 2.3 to 3.6 V supply.
High impedance TTL compatible inputs significantly reduce current
loading to input drivers while TTL compatible outputs offer improved
switching noise performance. A V
I
specification of 5.5 V allows
MC74LCX257 inputs to be safely driven from 5.0 V devices.
Four bits of data from two sources can be selected using the Select
input. The four outputs present the selected data in the true
(non−inverted) form. The outputs may be switched to a high
impedance state by placing a logic HIGH on the Output Enable (OE
)
input. Current drive capability is 24 mA at the outputs.
Features
• Designed for 2.3 to 3.6 V V
CC
Operation
• 5.0 V Tolerant − Interface Capability with 5.0 V TTL Logic
• Supports Live Insertion and Withdrawal
• I
OFF
Specification Guarantees High Impedance When V
CC
= 0 V
• LVTTL Compatible
• LVCMOS Compatible
• 24 mA Balanced Output Sink and Source Capability
• Near Zero Static Supply Current in All Three Logic States (10 A)
Substantially Reduces System Power Requirements
• Latchup Performance Exceeds 500 mA
• ESD Performance: Human Body Model >2000 V
Machine Model >200 V
• Pb−Free Packages are Available*
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
MARKING
DIAGRAMS
A = Assembly Location
L, WL = Wafer Lot
Y = Year
W, WW = Work Week
SOIC−16
D SUFFIX
CASE 751B
LCX257
AWLYWW
LCX
257
ALYW
TSSOP−16
DT SUFFIX
CASE 948F
SOEIAJ−16
M SUFFIX
CASE 966
74LCX257
ALYW
16
1
16
16
1
1
16
1
16
1
16
1
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
ORDERING INFORMATION
http://onsemi.com
MC74LCX257
http://onsemi.com
2
Figure 1. Pinout: 16−Lead Plastic Package
(Top View)
Figure 2. Logic Diagram
1516 14 13 12 11 10
21 34567
V
CC
9
8
OE
I0c I1c Zc I0d I1d
Zd
S
I0a
I1a
Za I0b
I1b
Zb GND
Za
I0a
4
2
S
I1a
3
1
Zb
I0b
7
5
I1b
6
Zc
I0c
12
14
I1c
13
Zd
I0d
9
11
I1d
10
OE
15
PIN NAMES
Pins Function
l0n Source 0 Data Inputs
l1n Source 1 Data Inputs
OE Output Enable Input
S Select Input
Zn Outputs
TRUTH TABLE
Inputs Outputs
OE S l0n l1n Zn
H X X X Z
L H X L L
L H X H H
L L L X L
L L H X H
H = High Voltage Level
L = Low Voltage Level
X = High or Low Voltage Level and Transitions are Acceptable
Z = High Impedance State
For ICC reasons, DO NOT FLOAT Inputs
MC74LCX257
http://onsemi.com
3
MAXIMUM RATINGS
Symbol Parameter Value Condition Unit
V
CC
DC Supply Voltage −0.5 to +7.0 V
V
I
DC Input Voltage −0.5 ≤ V
I
≤ +7.0 V
V
O
DC Output Voltage −0.5 ≤ V
I
≤ +7.0 Output in 3−State V
−0.5 ≤ V
O
≤ V
CC
+ 0.5 Output in HIGH or LOW State (Note 1) V
I
IK
DC Input Diode Current −50 V
I
< GND mA
I
OK
DC Output Diode Current −50 V
O
< GND mA
+50 V
O
> V
CC
mA
I
O
DC Output Source/Sink Current ±50 mA
I
CC
DC Supply Current Per Supply Pin ±100 mA
I
GND
DC Ground Current Per Ground Pin ±100 mA
T
STG
Storage Temperature Range −65 to +150 °C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. I
O
absolute maximum rating must be observed.
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Type Max Unit
V
CC
Supply Voltage Operating
Data Retention Only
2.0
1.5
2.5, 3.3
2.5, 3.3
3.6
3.6
V
V
I
Input Voltage 0 5.5 V
V
O
Output Voltage (HIGH or LOW State)
(3−State)
0
0
V
CC
5.5
V
I
OH
HIGH Level Output Current V
CC
= 3.0 V − 3.6 V
V
CC
= 2.7 V − 3.0 V
V
CC
= 2.3 V − 2.7 V
−24
−12
−8
mA
I
OL
LOW Level Output Current V
CC
= 3.0 V − 3.6 V
V
CC
= 2.7 V − 3.0 V
V
CC
= 2.3 V − 2.7 V
+24
+12
+8
mA
T
A
Operating Free−Air Temperature −40 +85 °C
t/V Input Transition Rise or Fall Rate, V
IN
from 0.8 V to 2.0 V,
V
CC
= 3.0 V
0 10 ns/V
ORDERING INFORMATION
Device Package Shipping
†
MC74LCX257DR2 SOIC−16 2500 Tape & Reel
MC74LCX257DR2G SOIC−16
(Pb−Free)
2500 Tape & Reel
MC74LCX257DT TSSOP−16* 96 Units / Rail
MC74LCX257DTR2 TSSOP−16* 2500 Tape & Reel
MC74LCX257M SOEIAJ−16 48 Units / Rail
MC74LCX257MEL SOEIAJ−16 2000 Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
*This package is inherently Pb−Free.
P1-P3P4-P6P7-P8

MC74LCX257DTR2

Mfr. #:
Buy MC74LCX257DTR2
Manufacturer:
ON Semiconductor
Description:
IC MUX QUAD 2INP HP 3ST 16-TSSOP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet