74ACT253MTC

74ACT253MTC Datasheet

74AC253, 74ACT253 Dual 4-Input Multiplexer with 3-STATE Outputs

Part	Datasheet
74ACT253MTC	74ACT253MTC (pdf)

Related Parts	Information
74ACT253SC	74ACT253SC
74ACT253PC	74ACT253PC
74ACT253SJX	74ACT253SJX
74ACT253SJ	74ACT253SJ
74ACT253SCX	74ACT253SCX
74ACT253MTCX	74ACT253MTCX

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74AC253, 74ACT253 Dual 4-Input Multiplexer with 3-STATE Outputs 74AC253, 74ACT253 Dual 4-Input Multiplexer with 3-STATE Outputs April 2007 • ICC and IOZ reduced by 50% • Multifunction capability • Non inverting 3-STATE outputs • Outputs source/sink 24mA • ACT253 has TTL-compatible inputs The AC/ACT253 is a dual 4-input multiplexer with 3-STATE outputs. It can select two bits of data from four sources using common select inputs. The outputs may be individually switched to a high impedance state with a HIGH on the respective Output Enable OE inputs, allowing the outputs to interface directly with bus oriented systems. Ordering Information Order Number 74AC253SC 74AC253SJ 74AC253PC 74ACT253SC 74ACT253SJ 74ACT253MTC Package Number M16A M16D N16E M16A M16D MTC16 Package Description 16-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-012, Narrow 16-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide 16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide 16-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-012, Narrow 16-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide 16-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 4.4mm Wide Device also available Tape and Reel. Specify by appending suffix letter “X” to the ordering number. Connection Diagram Pin Descriptions Pin Names S0, S1 OEa OEb Za, Zb Description Side A Data Inputs Side B Data Inputs Common Select Inputs Side A Output Enable Input Side B Output Enable Input 3-STATE Outputs FACT is a trademark of Fairchild Semiconductor Corporation. 74AC253, 74ACT253 Dual 4-Input Multiplexer with 3-STATE Outputs Logic Diagram IEEE/IEC Functional Description The AC/ACT253 contains two identical 4-input multiplexers with 3-STATE outputs. They select two bits from four sources selected by common Select inputs S0, S1 . The 4-input multiplexers have individual Output Enable OEa, OEb inputs which, when HIGH, force the outputs to a high impedance High Z state. This device is the logic implementation of a 2-pole, 4-position switch, where the position of the switch is determined by the logic levels supplied to the two select inputs. The logic equations for the outputs are shown: Za = OEa • I0a • S1 • S0 + I1a • S1 • S0 + I2a • S1 • S0 + I3a • S1 • S0 Zb = OEb • I0b • S1 • S0 + I1b • S1 • S0 + I2b • S1 • S0 + I3b • S1 • S0 If the outputs of 3-STATE devices are tied together, all but one device must be in the high impedance state to avoid high currents that would exceed the maximum ratings. Designers should ensure that Output Enable signals to 3-STATE devices whose outputs are tied together are designed so that there is no overlap. Truth Table Select Inputs Data Inputs Address Inputs S0 and S1 are common to both sections. H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance 1988 Fairchild Semiconductor Corporation Output Enable Outputs 74AC253, 74ACT253 Dual 4-Input Multiplexer with 3-STATE Outputs Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. Figure 1988 Fairchild Semiconductor Corporation 74AC253, 74ACT253 Dual 4-Input Multiplexer with 3-STATE Outputs Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Parameter VCC IIK VI IOK VO IO ICC or IGND TSTG TJ Supply Voltage DC Input Diode Current VI = VI = VCC + 0.5V DC Input Voltage DC Output Diode Current VO = VO = VCC + 0.5V DC Output Voltage DC Output Source or Sink Current DC VCC or Ground Current per Output Pin Storage Temperature Junction Temperature Rating to +7.0V +20mA to VCC + 0.5V +20mA to VCC + 0.5V ±50mA ±50mA to +150°C 140°C Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings. Symbol VCC

PDF Datasheet Preview

74AC253, 74ACT253 Dual 4-Input Multiplexer with 3-STATE Outputs
74AC253, 74ACT253 Dual 4-Input Multiplexer with 3-STATE Outputs

April 2007
• ICC and IOZ reduced by 50%
• Multifunction capability
• Non inverting 3-STATE outputs
• Outputs source/sink 24mA
• ACT253 has TTL-compatible inputs

The AC/ACT253 is a dual 4-input multiplexer with 3-STATE outputs. It can select two bits of data from four sources using common select inputs. The outputs may be individually switched to a high impedance state with a HIGH on the respective Output Enable OE inputs, allowing the outputs to interface directly with bus oriented systems.
Ordering Information

Order Number
74AC253SC 74AC253SJ 74AC253PC 74ACT253SC 74ACT253SJ 74ACT253MTC

Package Number

M16A M16D N16E M16A M16D MTC16

Package Description
16-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-012, Narrow 16-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide 16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide 16-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-012, Narrow 16-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide 16-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 4.4mm Wide
Device also available Tape and Reel. Specify by appending suffix letter “X” to the ordering number.

Connection Diagram

Pin Descriptions

Pin Names

S0, S1 OEa OEb Za, Zb

Description Side A Data Inputs Side B Data Inputs Common Select Inputs Side A Output Enable Input Side B Output Enable Input 3-STATE Outputs

FACT is a trademark of Fairchild Semiconductor Corporation.
74AC253, 74ACT253 Dual 4-Input Multiplexer with 3-STATE Outputs

Logic Diagram

IEEE/IEC

Functional Description

The AC/ACT253 contains two identical 4-input multiplexers with 3-STATE outputs. They select two bits from four sources selected by common Select inputs S0, S1 . The 4-input multiplexers have individual Output Enable OEa, OEb inputs which, when HIGH, force the outputs to a high impedance High Z state. This device is the logic implementation of a 2-pole, 4-position switch, where the position of the switch is determined by the logic levels supplied to the two select inputs. The logic equations for the outputs are shown:

Za = OEa
• I0a
• S1
• S0 + I1a
• S1
• S0 + I2a
• S1
• S0 + I3a
• S1
• S0

Zb = OEb
• I0b
• S1
• S0 + I1b
• S1
• S0 + I2b
• S1
• S0 + I3b
• S1
• S0

If the outputs of 3-STATE devices are tied together, all but one device must be in the high impedance state to avoid high currents that would exceed the maximum ratings. Designers should ensure that Output Enable signals to 3-STATE devices whose outputs are tied together are designed so that there is no overlap.

Truth Table

Select Inputs

Data Inputs

Address Inputs S0 and S1 are common to both sections. H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance
1988 Fairchild Semiconductor Corporation

Output Enable Outputs
74AC253, 74ACT253 Dual 4-Input Multiplexer with 3-STATE Outputs

Logic Diagram

Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.

Figure
1988 Fairchild Semiconductor Corporation
74AC253, 74ACT253 Dual 4-Input Multiplexer with 3-STATE Outputs

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only.

Parameter

VCC IIK

VI IOK

VO IO ICC or IGND TSTG TJ

Supply Voltage DC Input Diode Current

VI = VI = VCC + 0.5V DC Input Voltage DC Output Diode Current VO = VO = VCC + 0.5V DC Output Voltage DC Output Source or Sink Current DC VCC or Ground Current per Output Pin Storage Temperature Junction Temperature

Rating to +7.0V
+20mA to VCC + 0.5V
+20mA to VCC + 0.5V ±50mA ±50mA to +150°C 140°C

Recommended Operating Conditions

The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings.

Symbol VCC

More datasheets: CPD24-CMR1F-06M-CT | 3627 | QK08A-4/105638 | QK08A-2/208135 | QK08A-2/207886 | QK08A-2/205828 | QK08A-2/205737 | QK08A-2/203530 | 74ACT253SC | 74ACT253PC

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Datasheet ID: 74ACT253MTC 513168