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Details, datasheet, quote on part number:SN54ABT2240A
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Datasheet text preview:
SN54ABT2240A, SN74ABT2240A OCTAL BUFFERS AND LINE/MOS DRIVERS WITH 3-STATE OUTPUTS
SCBS232E JANUARY 1991 REVISED OCTOBER 1998
D D D D D D
Output Ports Have Equivalent 25- Series Resistors, So No External Resistors Are Required State-of-the-Art EPIC-BTM BiCMOS Design Significantly Reduces Power Dissipation Typical VOLP (Output Ground Bounce) < 1 V at VCC = 5 V, TA = 25°C Latch-Up Performance Exceeds 500 mA Per JESD 17 ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0) Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, Ceramic Chip Carriers (FK), Plastic (N) and Ceramic (J) DIPs, and Ceramic Flat (W) Package
SN54ABT2240A . . . J OR W PACKAGE SN74ABT2240A . . . DB, DW, N, OR PW 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
SN54ABT2240A . . . FK PACKAGE (TOP VIEW)
description
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. Together with the 'ABT2241 and 'ABT2244A, these devices provide 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.
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
These devices are organized as two 4-bit line drivers with separate OE inputs. When OE is low, the devices pass inverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state. The outputs, which are designed to sink up to 12 mA, include equivalent 25- series resistors to reduce overshoot and undershoot. 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. The SN54ABT2240A is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74ABT2240A is characterized for operation from 40°C to 85°C.
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. EPIC-B is a trademark of Texas Instruments Incorporated.
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 © 1998, 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.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
2Y1 GND 2A1 1Y4 2A2
1
SN54ABT2240A, SN74ABT2240A OCTAL BUFFERS AND LINE/MOS DRIVERS WITH 3-STATE OUTPUTS
SCBS232E JANUARY 1991 REVISED OCTOBER 1998
FUNCTION TABLE (each buffer) INPUTS OE L L H A H L X OUTPUT Y L H Z
logic symbol
1OE 1 EN 18 16 14 12 2OE 19 EN 9 7 5 3
1A1 1A2 1A3 1A4
2 4 6 8
1
1Y1 1Y2 1Y3 1Y4
2A1 2A2 2A3 2A4
11 13 15 17
1
2Y1 2Y2 2Y3 2Y4
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
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
2
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN54ABT2240A, SN74ABT2240A OCTAL BUFFERS AND LINE/MOS DRIVERS WITH 3-STATE OUTPUTS
SCBS232E JANUARY 1991 REVISED OCTOBER 1998
schematic of Y outputs
VCC
Output
GND
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 7 V Voltage range applied to any output in the high or power-off state, VO . . . . . . . . . . . . . . . . . . . 0.5 V to 5.5 V Current into any output in the low state, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 mA Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Package thermal impedance, JA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115°C/W DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128°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 negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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