DM74ALS5245N

DM74ALS5245N Datasheet

DM74ALS5245 Octal 3-STATE Transceiver

Part	Datasheet
DM74ALS5245N	DM74ALS5245N (pdf)

Related Parts	Information
DM74ALS5245WM	DM74ALS5245WM
DM74ALS5245SJX	DM74ALS5245SJX
DM74ALS5245SJ	DM74ALS5245SJ
DM74ALS5245WMX	DM74ALS5245WMX

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DM74ALS5245 Octal 3-STATE Transceiver DM74ALS5245 Octal 3-STATE Transceiver This octal bus transceiver is designed for asynchronous two-way communication between data buses. The inputs include hysteresis which provides improved noise rejection. Data is transmitted either from the A bus to the B bus or from the B bus to the A bus depending on the logic level of the direction control DIR input. The device can be disabled via the enable input G which causes the outputs to enter the high impedance mode so the buses are effectively isolated. s Input Hysteresis s Low output noise generation s High input noise immunity s Advanced oxide-isolated, ion implanted Schottky TTL process s Switching specification guaranteed over the full temper- ature and VCC range s PNP inputs to reduce input loading Ordering Code: Order Number Package Number Package Description DM74ALS5245WM M20B 20-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide DM74ALS5245SJ M20D 20-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide DM74ALS5245N N20A 20-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 Control Inputs L = LOW Logic Level H = HIGH Logic Level Operation B Data to A Bus A Data to B Bus High Impedance X = Don't Care Either LOW or HIGH Logic Level 2000 Fairchild Semiconductor Corporation DS009175 DM74ALS5245 Absolute Maximum Ratings Note 1 Supply Voltage Input Voltage Control Inputs I/O Ports 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 56.0°C/W 74.0°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 Characteristic 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 Range Units −15 Electrical Characteristics over recommended free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C. Parameter Test Conditions Units Input Clamp Voltage VCC = Min, II = −18 mA Hysteresis VT+ − VT− VCC = Min HIGH Level VCC = 4.5V to 5.5V IOH = mA VCC − 2 Output Voltage VCC = Min IOH = −3 mA IOH = Max LOW Level Output Voltage

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DM74ALS5245 Octal 3-STATE Transceiver

DM74ALS5245 Octal 3-STATE Transceiver

This octal bus transceiver is designed for asynchronous two-way communication between data buses. The inputs include hysteresis which provides improved noise rejection. Data is transmitted either from the A bus to the B bus or from the B bus to the A bus depending on the logic level of the direction control DIR input. The device can be disabled via the enable input G which causes the outputs to enter the high impedance mode so the buses are effectively isolated.
s Input Hysteresis s Low output noise generation s High input noise immunity s Advanced oxide-isolated, ion implanted Schottky TTL
process s Switching specification guaranteed over the full temper-
ature and VCC range s PNP inputs to reduce input loading
Ordering Code:

Order Number Package Number

Package Description

DM74ALS5245WM

M20B
20-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide

DM74ALS5245SJ

M20D
20-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide

DM74ALS5245N

N20A
20-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

Control Inputs

L = LOW Logic Level

H = HIGH Logic Level

Operation

B Data to A Bus A Data to B Bus High Impedance

X = Don't Care Either LOW or HIGH Logic Level
2000 Fairchild Semiconductor Corporation DS009175

DM74ALS5245

Absolute Maximum Ratings Note 1

Supply Voltage Input Voltage

Control Inputs I/O Ports 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
56.0°C/W 74.0°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 Characteristic 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 Range

Units
−15

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

Parameter

Test Conditions

Units

Input Clamp Voltage

VCC = Min, II = −18 mA

Hysteresis VT+ − VT−

VCC = Min

HIGH Level

VCC = 4.5V to 5.5V

IOH = mA

VCC − 2

Output Voltage

VCC = Min

IOH = −3 mA

IOH = Max

LOW Level

Output Voltage

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Datasheet ID: DM74ALS5245N 513684