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Details, datasheet, quote on part number:SN54HC240
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Datasheet text preview:
SN54HC240, SN74HC240 OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SCLS128C DECEMBER 1982 REVISED DECEMBER 2002
D D D D
Wide Operating Voltage Range of 2 V to 6 V High-Current Outputs Drive Up To 15 LSTTL Loads Low Power Consumption, 80-µA Max ICC Typical tpd = 9 ns
SN54HC240 . . . J OR W PACKAGE SN74HC240 . . . DW, N, NS, OR PW PACKAGE (TOP VIEW)
D D D
±6-mA Output Drive at 5 V Low Input Current of 1 µA Max 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
SN54HC240 . . . FK PACKAGE (TOP VIEW)
2Y 4 1A 1 1OE VCC
1OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
VCC 2OE 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1
1A2 2Y3 1A3 2Y2 1A4
4 5 6 7 8
3 2 1 20 19 18 17 16 15 14 9 10 11 12 13
2OE 1Y1 2A4 1Y2 2A3 1Y3
description/ordering information
These octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The 'HC240 devices are organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When OE is low, the device passes inverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state. ORDERING INFORMATION
TA PDIP N 40°C to 85°C SOIC DW DW SOP NS TSSOP PW CDIP J 55°C to 125°C CFP W PACKAGE Tube Tube Tape and reel Tape and reel Tape and reel Tube Tube ORDERABLE PART NUMBER SN74HC240N SN74HC240DW SN74HC240DWR SN74HC240NSR SN74HC240PWR SNJ54HC240J SNJ54HC240W TOP-SIDE MARKING SN74HC240N HC240 HC240 HC240 SNJ54HC240J SNJ54HC240W
LCCC FK Tube SNJ54HC240FK SNJ54HC240FK 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.
Copyright 2002, Texas Instruments Incorporated
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.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
2Y1 GND 2A1 1Y4 2A2
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SN54HC240, SN74HC240 OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SCLS128C DECEMBER 1982 REVISED DECEMBER 2002
FUNCTION TABLE (each buffer/driver) INPUTS OE L L H A H L X OUTPUT Y L H Z
logic diagram (positive logic)
1OE 1 2OE 18 19
1A1
2
1Y1
2A1
11
9
2Y1
1A2
4
16
1Y2
2A2
13
7
2Y2
1A3
6
14
1Y3
2A3
15
5
2Y3
1A4
8
12
1Y4
2A4
17
3
2Y4
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V Input clamp current, IIK (VI VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Output clamp current, IOK (VO VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±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): DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60°C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
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.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN54HC240, SN74HC240 OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SCLS128C DECEMBER 1982 REVISED DECEMBER 2002
recommended operating conditions (see Note 3)
SN54HC240 MIN VCC VIH Supply voltage High-level input voltage VCC = 2 V VCC = 4.5 V VCC = 6 V VCC = 2 V VIL VI VO t/v Low-level input voltage Input voltage Output voltage Input transition rise/fall time VCC = 2 V VCC = 4.5 V VCC = 4.5 V VCC = 6 V 0 0 2 1.5 3.15 4.2 0.5 1.35 1.8 VCC VCC 1000 500 0 0 NOM 5 MAX 6 SN74HC240 MIN 2 1.5 3.15 4.2 0.5 1.35 1.8 VCC VCC 1000 500 ns V V V V NOM 5 MAX 6 UNIT V
VCC = 6 V 400 400 TA Operating free-air temperature 55 125 40 85 °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 TEST CONDITIONS CONDITIONS VCC 2V IOH = 20 µA VOH VI = VIH or VIL IOH = 6 mA IOH = 7.8 mA IOL = 20 µA VOL VI = VIH or VIL IOL = 6 mA IOL = 7.8 mA II IOZ ICC Ci VI = VCC or 0 VO = VCC or 0 VI = VCC or 0, IO = 0 4.5 V 6V 4.5 V 6V 2V 4.5 V 6V 4.5 V 6V 6V 6V 6V 2 V to 6 V 3 MIN 1.9 4.4 5.9 3.98 5.48 TA = 25°C TYP MAX 1.998 4.499 5.999 4.3 5.8 0.002 0.001 0.001 0.17 0.15 ±0.1 ±0.01 0.1 0.1 0.1 0.26 0.26 ±100 ±0.5 8 10 SN54HC240 MIN 1.9 4.4 5.9 3.7 5.2 0.1 0.1 0.1 0.4 0.4 ±1000 ±10 160 10 MAX SN74HC240 MIN 1.9 4.4 5.9 3.84 5.34 0.1 0.1 0.1 0.33 0.33 ±1000 ±5 80 10 nA µA µA pF V V MAX UNIT
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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