EPIC (Enhanced-Performance Implanted CMOS) Process Operating Range 5.5

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EPIC (Enhanced-Performance Implanted CMOS) Process Operating Range 5.5

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SN54AHC245, SN74AHC245 OCTAL TRANSCEIVERS WITH 3-STATE OUTPUTS
EPIC (Enhanced-Performance Implanted CMOS) Process Operating Range 5.5-V Latch-Up Performance Exceeds JESD Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), Thin Very Small-Outline (DGV), Thin Shrink Small-Outline (PW), Ceramic Flat Packages, Ceramic Chip Carriers (FK), Standard Plastic Ceramic DIPs
SN54AHC245 PACKAGE SN74AHC245 DGV, PACKAGE (TOP VIEW)
description
'AHC245 octal transceivers designed asynchronous two-way communication between data buses. control-function implementation minimizes external timing requirements. These devices allow data transmission from from bus, depending logic level direction-control (DIR) input. output-enable (OE) input used disable device that buses effectively isolated. ensure high-impedance state during power power down, should tied through pullup resistor; minimum value resistor determined current-sinking capability driver. SN54AHC245 characterized operation over full military temperature range -55°C 125°C. SN74AHC245 characterized operation from -40°C 85°C.
FUNCTION TABLE (each transceiver) INPUTS OPERATION data data Isolation SN54AHC245 PACKAGE (TOP VIEW)
Please aware that important notice concerning availability, standard warranty, critical applications Texas Instruments semiconductor products disclaimers thereto appears this data sheet. EPIC trademark Texas Instruments Incorporated.
PRODUCTION DATA information current publication date. Products conform specifications terms Texas Instruments standard warranty. Production processing does necessarily include testing parameters.
Copyright 2000, Texas Instruments Incorporated
products compliant MIL-PRF-38535, parameters tested unless otherwise noted. other products, production processing does necessarily include testing parameters.
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SN54AHC245, SN74AHC245 OCTAL TRANSCEIVERS WITH 3-STATE OUTPUTS
logic symbol
[BA] [AB]
This symbol accordance with ANSI/IEEE 91-1984 Publication 617-12.
logic diagram (positive logic)
Seven Other Channels
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SN54AHC245, SN74AHC245 OCTAL TRANSCEIVERS WITH 3-STATE OUTPUTS
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, -0.5 Input voltage range, (see Note -0.5 Output voltage range, (see Note -0.5 Input clamp current, Output clamp current, VCC) Continuous output current, VCC) Continuous current through Package thermal impedance, (see Note package 70°C/W package 92°C/W package 58°C/W package 69°C/W package 83°C/W Storage temperature range, Tstg -65°C 150°C
Stresses beyond those listed under "absolute maximum ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated under "recommended operating conditions" implied. Exposure absolute-maximum-rated conditions extended periods affect device reliability. NOTES: input output voltage ratings exceeded input output current ratings observed. package thermal impedance calculated accordance with JESD
recommended operating conditions (see Note
SN54AHC245 Supply voltage High-level input voltage Low-level input voltage Input voltage Output voltage High-level output current Low-level output current 3.85 1.65 SN74AHC245 3.85 1.65 UNIT
ns/V
Input transition rise fall rate
Operating free-air temperature NOTE unused inputs device must held ensure proper device operation. Refer application report, Implications Slow Floating CMOS Inputs, literature number SCBA004.
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SN54AHC245, SN74AHC245 OCTAL TRANSCEIVERS WITH 3-STATE OUTPUTS
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS inputs inputs GND, (OE) GND, 2.58 3.94 0.36 0.36 ±0.1 ±0.1 ±0.25 25°C SN54AHC245 2.48 ±2.5 SN74AHC245 2.48 0.44 0.44 ±2.5 UNIT
products compliant MIL-PRF-38535, this parameter production tested parameter includes input leakage current.
switching characteristics over recommended operating free-air temperature range, (unless otherwise noted) (see Figure
PARAMETER tPLH tPHL tPZH tPZL tPHZ tPLZ tPLH tPHL tPZH tPZL tPHZ tPLZ tsk(o) FROM (INPUT) (OUTPUT) LOAD CAPACITANCE 25°C 5.8** 5.8** 8.5** 8.5** 8.9** 8.9** 11.5 11.5 8.4** 8.4** 13.2** 13.2** 12.5** 12.5** 11.9 11.9 16.7 16.7 15.8 15.8 1.5*** SN54AHC245 10** 10** 15.5** 15.5** 15.5** 15.5** 13.5 13.5 SN74AHC245 15.5 15.5 15.5 15.5 13.5 13.5 UNIT
products compliant MIL-PRF-38535, this parameter production tested. products compliant MIL-PRF-38535, this parameter does apply.
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SN54AHC245, SN74AHC245 OCTAL TRANSCEIVERS WITH 3-STATE OUTPUTS
switching characteristics over recommended operating free-air temperature range, (unless otherwise noted) (see Figure
PARAMETER tPLH tPHL tPZH tPZL tPHZ tPLZ tPLH tPHL tPZH tPZL tPHZ tPLZ FROM (INPUT) (OUTPUT) LOAD CAPACITANCE 25°C 5.8* 5.8* 5.6* 5.6* 5.5* 5.5* 8.5* 8.5* 7.8* 7.8* 10.6 10.6 SN54AHC245 6.5* 6.5* 9.2* 9.2* SN74AHC245 UNIT
tsk(o) products compliant MIL-PRF-38535, this parameter production tested. products compliant MIL-PRF-38535, this parameter does apply.
noise characteristics, 25°C (see Note
PARAMETER VOL(P) VOL(V) VOH(V) VIH(D) Quiet output, maximum dynamic Quiet output, minimum dynamic Quiet output, minimum dynamic High-level dynamic input voltage SN74AHC245 -0.9 UNIT
VIL(D) Low-level dynamic input voltage NOTE Characteristics surface-mount packages only.
operating characteristics, 25°C
PARAMETER Power dissipation capacitance TEST CONDITIONS load, UNIT
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SN54AHC245, SN74AHC245 OCTAL TRANSCEIVERS WITH 3-STATE OUTPUTS
PARAMETER MEASUREMENT INFORMATION
Open
From Output Under Test (see Note
Test Point
From Output Under Test (see Note
TEST tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open Drain
Open
LOAD CIRCUIT TOTEM-POLE OUTPUTS
LOAD CIRCUIT 3-STATE OPEN-DRAIN OUTPUTS Timing Input Data Input VOLTAGE WAVEFORMS SETUP HOLD TIMES tPZL tPZH Output Waveform (see Note tPLZ tPHZ
Input
VOLTAGE WAVEFORMS PULSE DURATION
Input tPLH In-Phase Output tPHL Out-of-Phase Output
tPHL
Output Control
tPLH
Output Waveform (see Note
VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING NONINVERTING OUTPUTS
VOLTAGE WAVEFORMS ENABLE DISABLE TIMES LOW- HIGH-LEVEL ENABLING
NOTES: includes probe capacitance. Waveform output with internal conditions such that output except when disabled output control. Waveform output with internal conditions such that output high except when disabled output control. input pulses supplied generators having following characteristics: MHz, outputs measured time with input transition measurement.
Figure Load Circuit Voltage Waveforms
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Copyright 2000, Texas Instruments Incorporated

EPIC (Enhanced-Performance Implanted CMOS) Process Operating Range 5.5

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