Details, datasheet, quote on part number: 8550601RA
Part8550601RA
CategorySemiconductors => Space & High Reliability => Logic Products => Buffers/Drivers/Transceivers => Transceivers
Part familySN54HCT245 Octal Bus Transceivers With 3-State Outputs
TitleStandard Transceivers
DescriptionOctal Bus Transceivers With 3-State Outputs 20-CDIP -55 to 125
CompanyTexas Instruments, Inc.
StatusACTIVE
ROHSSee ti.com
SampleNo
DatasheetDownload 8550601RA datasheet
Cross ref.Similar parts: 5962R9574501VRC, 5962R9574501VRX, M54HCT245F1R, MM54HCT245J/883, MM54HCT245J/883B, HCTS245DMSR, 74VHCT245A, 74VHCT245AN, MM74HCT245, MM74HCT245N
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Specifications 
Bits(#)8
Schmitt TriggerNo
RatingMilitary
Package GroupCDIP,CFP,LCCC
Operating Temperature Range(C)-55 to 125
VCC(Max)(V)5.5
Technology FamilyHCT
VCC(Min)(V)4.5
  Mecanical Data
Pin nbPackage typeInd stdJEDEC codePackage qtyCarrierDevice markWidth (mm)Length (mm)Thick (mm)Pitch (mm)
20JCDIPR-GDIP-T1TUBE8550601RA 6.9224.24.572.54
Application notes
• SN54/74HCT CMOS Logic Family Applications and Restrictions
The TI SN54/74HCT family of CMOS devices is a subgroup of the SN74HC series with the HCT circuitry modified to meet the interfacing requirements of TTL outputs to high-speed CMOS inputs. The HCT devices can be driven by the TTL circuits directly without ad | Doc
• Designing With Logic (Rev. C)
Data sheets, which usually give information on device behavior only under recommended operating conditions, may only partially answer engineering questions that arise during the development of systems using logic devices. However, information is frequently | Doc
• Implications of Slow or Floating CMOS Inputs (Rev. D) | Doc
• CMOS Power Consumption and CPD Calculation (Rev. B)
Reduction of power consumption makes a device more reliable. The need for devices that consume a minimum amount of power was a major driving force behind the development of CMOS technologies. As a result, CMOS devices are best known for low power consumpti | Doc
• Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc
Though low power consumption is a feature of CMOS devices, sometimes this feature does not meet a designer?s system power supply constraints. Therefore a partial system power down or multiple Vcc supplies are used to meet the needs of the system. This docu | Doc

 

Features, Applications

Operating Voltage Range 5.5 V High-Current 3-State Outputs Drive Bus Lines Directly To 15 LSTTL Loads Low Power Consumption, 80-A Max ICC Typical tpd ns 6-mA Output Drive 5 V Low Input Current 1 A Max Inputs Are TTL-Voltage Compatible

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. The 'HCT245 devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated.

TA PDIP N SOIC to 85C SOP NS SSOP DB TSSOP PW CDIP to 125C CFP W LCCC FK PACKAGE Tube of 20 Tube of 25 Reel of 2000 Reel of 2000 Reel of 2000 Tube of 70 Reel of 2000 Reel of 250 Tube of 20 Tube of 85 Tube of 55 ORDERABLE PART NUMBER SNJ54HCT245W HT245 TOP-SIDE MARKING HCT245 HT245

SNJ54HCT245FK Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters.

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

FUNCTION TABLE INPUTS L H DIR H X OPERATION B data to A bus A data to B bus Isolation
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Supply voltage range, VCC. 7 V Input clamp current, IIK (VI VI > VCC) (see Note 20 mA Output clamp current, IOK (VO VO > VCC) (see Note 20 mA Continuous output current, IO (VO 0 to VCC). 35 mA Continuous current through VCC or GND. 70 mA Package thermal impedance, JA (see Note 2): DB package. 70C/W DW package. 58C/W N package. 69C/W NS package. 60C/W PW package. 83C/W Storage temperature range, Tstg. to 150C

Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51-7.

SN54HCT245 MIN VCC VIH VIL VI VO t/v Supply voltage High-level input voltage Low-level input voltage Input voltage Output voltage Input transition rise/fall time VCC 5.5 V VCC 5.5 V VCC 500 0 NOM 5 MAX 5.5 SN74HCT245 MIN 2 0.8 VCC 500 NOM 5 MAX 5.5 UNIT ns

TA Operating free-air temperature C NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004.

electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)

PARAMETER VOH VOL II IOZ ICC Ci DIR or OE DIR or B TEST CONDITIONS VI = VIH or VIL VI = VIH or VIL VI = VCC VO = VCC VI = VCC = 0 One input 2.4 V, Other inputs 0 or VCC IOH 20 A IOH 6 mA IOL 20 A IOL 6 mA VCC 1.4 3 MIN = 25C TYP MAX SN54HCT245 MIN MAX SN74HCT245 MIN MAX UNIT mA pF

This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than V or VCC. Parameter Ci does not apply to transceiver I/O ports.

switching characteristics over recommended operating free-air temperature range, 50 pF (unless otherwise noted) (see Figure 1)

PARAMETER tpd ten tdis tt FROM (INPUT) B TO (OUTPUT) or B VCC 5.5 V MIN = 25C TYP MAX SN54HCT245 MIN MAX SN74HCT245 MIN MAX UNIT ns


 

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