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Details, datasheet, quote on part number:SN74ALS241CNSR
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Datasheet text preview:
SN54ALS241C, SN54AS241A, SN74ALS241C, SN74AS241A OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SDAS153E DECEMBER 1982 REVISED AUGUST 1995
· · ·
3-State Outputs Drive Bus Lines or Buffer Memory Address Registers pnp Inputs Reduce dc Loading Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs
SN54ALS241C, SN54AS241A . . . J PACKAGE SN74ALS241C, SN74AS241A . . . DW OR N PACKAGE (TOP VIEW)
description
These octal buffers/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 designer has a choice of selected combinations of inverting and noninverting outputs, symmetrical active-low output-enable (OE) inputs, and complementary OE and OE inputs. These devices feature high fan-out and improved fan-in. The -1 version of SN74ALS241C is identical to the standard version, except that the recommended maximum IOL of the -1 version is 48 mA. There is no -1 version of the SN54ALS241C. The SN54ALS241C and SN54AS241A are characterized for operation over the full military temperature range of 55°C to 125°C. The SN74ALS241C and SN74AS241A are characterized for operation from 0°C to 70°C.
FUNCTION TABLES INPUTS 1OE L L H 1A H L X OUTPUT 1Y H L Z
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
VC C 2OE 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1
SN54ALS241C, SN54AS241A . . . FK PACKAGE (TOP VIEW)
2Y4 1A1 1OE VCC
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
INPUTS 2OE H H L 2A H L X
OUTPUT 2Y H L Z
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.
Copyright © 1995, Texas Instruments Incorporated
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
2Y1 GND 2A1 1Y4 2A2
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SN54ALS241C, SN54AS241A, SN74ALS241C, SN74AS241A OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SDAS153E DECEMBER 1982 REVISED AUGUST 1995
logic symbol
1OE 1 EN 18 16 14 12
logic diagram (positive logic)
1 1OE 2
1A1 1A2 1A3 1A4
2 4 6 8
1Y1 1Y2 1Y3 1Y4
1A1
18
1Y1
1A2
4
16
1Y2
1A3 2OE 19 EN 9 7 5 3 1A4 2Y1 2Y2 2Y3 2Y4 2A1
6
14
1Y3
8
12
2A1 2A2 2A3 2A4
11 13 15 17
1Y4
19 2OE
11
9
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
2Y1
2A2
13
7
2Y2
2A3
15
5
2Y3
2A4
17
3
2Y4
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Voltage applied to a disabled 3-state output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V Operating free-air temperature range, TA: SN54ALS241C . . . . . . . . . . . . . . . . . . . . . . . . . . . 55°C to 125°C SN74ALS241C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN54ALS241C, SN54AS241A, SN74ALS241C, SN74AS241A OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SDAS153E DECEMBER 1982 REVISED AUGUST 1995
recommended operating conditions
SN54ALS241C MIN VCC VIH VIL IOH IOL Supply voltage High-level input voltage Low-level input voltage High-level output current Low-level output current output current 55 4.5 2 0.7 12 12 125 0 NOM 5 MAX 5.5 SN74ALS241C MIN 4.5 2 0.8 15 24 48 70 NOM 5 MAX 5.5 UNIT V V V mA mA °C
TA Operating free-air temperature Applies only to the -1 version and only if VCC is between 4.75 V and 5.25 V
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER VIK TEST CONDITIONS CONDITIONS VCC = 4.5 V, VCC = 4.5 V to 5.5 V, VCC = 4.5 V II = 18 mA IOH = 0.4 mA IOH = 3 mA IOH = 12 mA IOH = 15 mA IOL = 12 mA VOL IOZH IOZL II IIH IIL IO§ ICC VCC = 4.5 V VCC = 5.5 V, VCC = 5.5 V, VCC = 5.5 V, VCC = 5.5 V, VCC = 5.5 V, VCC = 5.5 V, VCC = 5.5 V IOL = 24 mA IOL = 48 mA (-1 version) VO = 2.7 V VO = 0.4 V VI = 7 V VI = 2.7 V VI = 0.4 V VO = 2.25 V Outputs high Outputs low Outputs disabled 20 9 15 17 20 20 0.1 20 0.1 112 17 28 32 30 9 15 17 SN54ALS241C MIN TYP MAX 1.2 VCC 2 2.4 2 2 0.25 0.4 0.25 0.35 0.35 0.4 0.5 0.5 20 20 0.1 20 0.1 112 18 26 30 mA µA µA mA µA mA mA V 3.2 VCC 2 2.4 3.2 SN74ALS241C MIN TYP MAX 1.2 UNIT V
VOH
V
All typical values are at VCC = 5 V, TA = 25°C. § The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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