DM74ALS253MX

DM74ALS253MX Datasheet

DM74ALS253 3-STATE Dual 1-of-4 Line Data Selector/Multiplexer

Part	Datasheet
DM74ALS253MX	DM74ALS253MX (pdf)

Related Parts	Information
DM74ALS253N	DM74ALS253N
DM74ALS253M	DM74ALS253M

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DM74ALS253 3-STATE Dual 1-of-4 Line Data Selector/Multiplexer DM74ALS253 3-STATE Dual 1-of-4 Line Data Selector/Multiplexer This Data Selector/Multiplexer contains full on-chip decoding to select one-of-four data sources as a result of a unique two-bit binary code at the Select Inputs. Each of the two Data Selector/Multiplexer circuits have their own separate Data and Output Control inputs and a non-inverting 3STATE output buffer. The Output Control inputs, when at the high level, place the corresponding output in the high impedance OFF-State. In order to prevent bus access conflicts, output disable times are shorter than output enable times. The Select input buffers incorporate internal overlap features to ensure that select input changes do not cause invalid output transients. s Advanced oxide-isolated, ion-implanted Schottky TTL process s Switching performance is guaranteed over full temperature and VCC supply range s Pin and functional compatible with LS family counterpart s Improved output transient handling capability s Output control circuitry incorporates power-up 3-STATE Ordering Code: Order Number Package Number Package Description DM74ALS253M M16A 16-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-012, Narrow DM74ALS253N N16E 16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Function Table Select Data Inputs Output Inputs Control B A C0 C1 C2 C3 LL L X LL H X LH X L X LH X H X HL X L X HL X H X HH X L HH X H Address inputs A and B are common to both sections H = HIGH Level L = LOW Level X = Don't Care Z = High Impedance Output Y Z L H L H L H L H 2000 Fairchild Semiconductor Corporation DS006215 DM74ALS253 Logic Diagram DM74ALS253 Absolute Maximum Ratings Note 1 Supply Voltage, VCC Input Voltage Applied to Disabled Output Operating Free Air Temperature Range Storage Temperature Range Typical N Package M Package 7V 5.5V 0°C to +70°C −65°C to +150°C 78.0°C/W 107.0°C/W Note 1 The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Recommended Operating Conditions VCC VIH VIL IOH IOL TA Parameter Supply Voltage HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Current LOW Level Output Current Free Air Operating Temperature Electrical Characteristics over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C. Parameter Conditions VIK VOH II IIH IIL IO IOZH IOZL ICC Input Clamp Voltage VCC = 4.5V, IIN = −18 mA

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DM74ALS253 3-STATE Dual 1-of-4 Line Data Selector/Multiplexer

DM74ALS253 3-STATE Dual 1-of-4 Line Data Selector/Multiplexer

This Data Selector/Multiplexer contains full on-chip decoding to select one-of-four data sources as a result of a unique two-bit binary code at the Select Inputs. Each of the two Data Selector/Multiplexer circuits have their own separate Data and Output Control inputs and a non-inverting 3STATE output buffer. The Output Control inputs, when at the high level, place the corresponding output in the high impedance OFF-State. In order to prevent bus access conflicts, output disable times are shorter than output enable times. The Select input buffers incorporate internal overlap features to ensure that select input changes do not cause invalid output transients.
s Advanced oxide-isolated, ion-implanted Schottky TTL process
s Switching performance is guaranteed over full temperature and VCC supply range
s Pin and functional compatible with LS family counterpart s Improved output transient handling capability s Output control circuitry incorporates power-up 3-STATE
Ordering Code:

Order Number Package Number

Package Description

DM74ALS253M

M16A
16-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-012, Narrow

DM74ALS253N

N16E
16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Function Table

Select

Data Inputs

Output

Inputs

Control

B A C0 C1 C2 C3

LL L X

LL H X

LH X L X

LH X H X

HL X L X

HL X H X

HH X L

HH X H

Address inputs A and B are common to both sections H = HIGH Level L = LOW Level X = Don't Care Z = High Impedance

Output

Y Z L H L H L H L H
2000 Fairchild Semiconductor Corporation DS006215

DM74ALS253

Logic Diagram

DM74ALS253

Absolute Maximum Ratings Note 1

Supply Voltage, VCC Input Voltage Applied to Disabled Output Operating Free Air Temperature Range Storage Temperature Range Typical

N Package M Package
7V 5.5V 0°C to +70°C −65°C to +150°C
78.0°C/W 107.0°C/W

Note 1 The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation.

Recommended Operating Conditions

VCC VIH VIL IOH IOL TA

Parameter Supply Voltage HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Current LOW Level Output Current Free Air Operating Temperature

Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C.

Parameter

Conditions

VIK VOH

II IIH IIL IO IOZH IOZL ICC

Input Clamp Voltage

VCC = 4.5V, IIN = −18 mA

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Datasheet ID: DM74ALS253MX 513671