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Details, datasheet, quote on part number:SN74ACT240NSR
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Datasheet text preview:
SN54ACT240, SN74ACT240 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SCAS515C JUNE 1995 REVISED OCTOBER 2002
D D
4.5-V to 5.5-V VCC Operation Inputs Accept Voltages to 5.5 V
SN54ACT240 . . . J OR W PACKAGE SN74ACT240 . . . DB, DW, N, NS, OR PW PACKAGE (TOP VIEW)
D D
Max tpd of 8.5 ns at 5 V Inputs Are TTL Compatible
SN54ACT240 . . . FK PACKAGE (TOP VIEW)
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
2Y 4 1A 1 1OE VCC
2OE 1Y1 2A4 1Y2 2A3 1Y3
description/ordering information
These octal buffers and line drivers are designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The 'ACT240 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. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION
TA PDIP N SOIC DW DW 40°C to 85°C to 85°C SOP NS SSOP DB TSSOP PW CDIP J 55°C to 125°C CFP W LCCC FK PACKAGE Tube Tube Tape and reel Tape and reel Tape and reel Tape and reel Tube Tube Tube ORDERABLE PART NUMBER SN74ACT240N SN74ACT240DW SN74ACT240DWR SN74ACT240NSR SN74ACT240DBR SN74ACT240PWR SNJ54ACT240J SNJ54ACT240W SNJ54ACT240FK TOP-SIDE MARKING SN74ACT240N ACT240 ACT240 AD240 AD240 SNJ54ACT240J SNJ54ACT240W
SNJ54ACT240FK 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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SN54ACT240, SN74ACT240 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SCAS515C JUNE 1995 REVISED OCTOBER 2002
FUNCTION TABLE (each buffer) INPUTS OE L L H A H L X OUTPUT Y L H Z
logic diagram (positive logic)
1OE 1 2OE 19
1A1
2
18
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 voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to VCC + 0.5 V Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to VCC + 0.5 V Input clamp current, IIK (VI VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Output clamp current, IOK (VO VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±200 mA Package thermal impedance, JA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W 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
SN54ACT240, SN74ACT240 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SCAS515C JUNE 1995 REVISED OCTOBER 2002
recommended operating conditions (see Note 3)
SN54ACT240 MIN VCC VIH VIL VI VO IOH IOL t/v Supply voltage High-level input voltage Low-level input voltage Input voltage Output voltage High-level output current Low-level output current Input transition rise or fall rate 0 0 4.5 2 0.8 VCC VCC 24 24 8 0 0 MAX 5.5 SN74ACT240 MIN 4.5 2 0.8 VCC VCC 24 24 8 MAX 5.5 UNIT V V V V V mA mA ns/V
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 IOH = 50 µA 50 µA VOH IOH = 24 mA 24 mA IOH = 50 mA IOH = 75 mA IOL = 50 µA 50 µA VOL IOL = 24 mA 24 mA IOL = 50 mA IOL = 75 mA IOZ II ICC ICC Ci VO = VCC or GND VI = VCC or GND VI = VCC or GND, IO = 0 One input at 3.4 V, Other inputs at GND or VCC VI = VCC or GND VI = VCC or GND VCC 4.5 V 5.5 V 4.5 V 5.5 V 5.5 V 5.5 V 4.5 V 5.5 V 4.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5V 0.6 2.5 ±0.25 ±0.1 4 ±5 ±1 80 1.6 0.001 0.001 0.1 0.1 0.36 0.36 0.1 0.1 0.5 0.5 1.65 1.65 ±2.5 ±1 40 1.5 µA µA µA mA pF pF MIN 4.4 5.4 3.86 4.86 TA = 25°C TYP MAX 4.49 5.49 SN54ACT240 MIN 4.4 5.4 3.7 4.7 3.85 3.85 0.1 0.1 0.44 0.44 V MAX SN74ACT240 MIN 4.4 5.4 3.76 4.76 V MAX UNIT
Co 5V 8 Not more than one output should be tested at a time, and the duration of the test should not exceed 2 ms. This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0 V or VCC.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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