SN74ALS640BDWE4

SN54ALS640B, SN54AS640, SN74ALS640B, SN74AS640 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDAS122A – DECEMBER 1983 – REVISED JANUARY 1995 • • Bidirectional Bus Transceivers in High-Density 20-Pin Packages Inverting Logic Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs SN54ALS640B, SN54AS640 . . . J PACKAGE SN74ALS640B, SN74AS640 . . . DW OR N PACKAGE (TOP VIEW) DIR A1 A2 A3 A4 A5 A6 A7 A8 GND description These octal bus transceivers are designed for asynchronous two-way communication between data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending upon the level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC OE B1 B2 B3 B4 B5 B6 B7 B8 A2 A1 DIR VCC SN54ALS640B, SN54AS640 . . . FK PACKAGE (TOP VIEW) The -1 version of the SN74ALS640B is identical to the standard version, except that the recommended maximum IOL for the -1 version is increased to 48 mA. There is no -1 version of the SN54ALS640B. A3 A4 A5 A6 A7 The SN54ALS640B and SN54AS640 are characterized for operation over the full military temperature range of – 55°C to 125°C. The SN74ALS640B and SN74AS640 are characterized for operation from 0°C to 70°C. OE • 4 3 2 1 20 19 18 5 17 6 16 7 15 14 8 B1 B2 B3 B4 B5 A8 GND B8 B7 B6 9 10 11 12 13 FUNCTION TABLE INPUTS OE DIR OPERATION L L B data to A bus L H A data to B bus H X Isolation Copyright  1995, 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. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 SN54ALS640B, SN54AS640, SN74ALS640B, SN74AS640 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDAS122A – DECEMBER 1983 – REVISED JANUARY 1995 logic symbol† OE DIR A1 19 1 logic diagram (positive logic) OE G3 19 3 EN1 [BA] 3 EN2 [AB] 2 18 1 DIR B1 1 2 A2 A3 A4 A5 A6 A7 A8 3 17 4 16 5 15 6 14 7 13 8 12 9 11 B2 B3 A1 2 18 B1 B4 B5 B6 B7 To Seven Other Transceivers B8 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI: All inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V I/O ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V Operating free-air temperature range, TA: SN54ALS640B . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C SN74ALS640B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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. recommended operating conditions SN54ALS640B VCC VIH Supply voltage VIL IOH Low-level input voltage IOL High-level input voltage NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 2 High-level output current Low level output current Low-level TA Operating free-air temperature § Applies only to the -1 version and only if VCC is between 4.75 V and 5.25 V 2 SN74ALS640B MIN POST OFFICE BOX 655303 – 55 • DALLAS, TEXAS 75265 2 UNIT V V 0.7 0.8 V – 12 – 15 mA 12 24 48§ mA 70 °C 125 0 SN54ALS640B, SN54AS640, SN74ALS640B, SN74AS640 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDAS122A – DECEMBER 1983 – REVISED JANUARY 1995 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH SN54ALS640B TYP† MAX TEST CONDITIONS MIN VCC = 4.5 V, VCC = 4.5 V to 5.5 V, II = – 18 mA IOH = – 0.4 mA VCC = 4.5 V IOH = – 3 mA IOH = – 12 mA – 1.5 VCC – 2 2.4 II VCC = 4.5 V Control inputs A or B ports VCC = 5 5.5 5V VI = 7 V VI = 5.5 V Control inputs A or B ports§ VCC = 5 5.5 5V V, VI = 2 2.7 7V IIL Control inputs A or B ports§ 5V VCC = 5 5.5 V, 4V VI = 0 0.4 VCC = 5.5 V, VO = 2.25 V Outputs high ICC 3.2 3.2 VCC = 5.5 V UNIT V V 2 0.25 0.4 IOL = 24 mA IOL = 48 mA‡ IIH IO¶ – 1.5 VCC – 2 2.4 2 IOH = – 15 mA IOL = 12 mA VOL SN74ALS640B TYP† MAX MIN – 20 Outputs low 0.25 0.4 0.35 0.5 0.35 0.5 0.1 0.1 0.1 0.1 20 20 20 20 – 0.1 – 0.1 – 0.1 – 0.1 – 112 – 30 – 112 19 50 19 45 27 60 27 55 V mA µA mA mA mA Outputs disabled 28 55 28 50 † All typical values are at VCC = 5 V, TA = 25°C. ‡ Applies only to the -1 version and only if VCC is between 4.75 V and 5.25 V § For I/O ports, the parameters IIH and IIL include the off-state output current. ¶ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = MIN to MAX# SN54ALS640B tPLH tPHL A or B B or A tPZH tPZL OE A or B tPHZ tPLZ OE A or B UNIT SN74ALS640B MIN MAX MIN 2 14 2 MAX 11 2 13 2 10 4 25 4 21 5 27 5 24 2 12 2 10 3 20 3 15 ns ns ns # For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SN54ALS640B, SN54AS640, SN74ALS640B, SN74AS640 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDAS122A – DECEMBER 1983 – REVISED JANUARY 1995 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI: All inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V I/O ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V Operating free-air temperature range, TA: SN54AS640 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C SN74AS640 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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. recommended operating conditions SN54AS640 SN74AS640 MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 UNIT VCC VIH Supply voltage VIL IOH Low-level input voltage 0.8 0.8 V High-level output current – 12 – 15 mA IOL TA Low-level output current 48 64 mA 70 °C High-level input voltage 2 Operating free-air temperature 2 – 55 125 V V 0 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK II Control inputs A or B ports II = – 18 mA IOH = – 2 mA VCC = 4.5 V to 5.5 V, IOH = – 2 mA IOH = – 3 mA VCC = 4.5 V IOH = – 12 mA IOH = – 15 mA VCC = 4 4.5 5V IOL = 48 mA IOL = 64 mA VCC = 5 5.5 5V VI = 7 V VI = 5.5 V IIH Control inputs A or B ports§ VCC = 5 5.5 5V V, VI = 2 2.7 7V IIL Control inputs A or B ports§ VCC = 5 5.5 5V V, VI = 0 0.4 4V VCC = 5.5 V, VO = 2.25 V Outputs high IO¶ ICC MIN VCC = 4.5 V, VCC = 4.5 V, VOH VOL SN54AS640 TYP‡ MAX TEST CONDITIONS VCC = 5.5 V SN74AS640 TYP‡ MAX MIN – 1.2 – 1.2 UNIT V VCC – 2 2.4 VCC – 2 2.4 3.2 V 3.2 2.4 2.4 0.3 0.55 0.35 – 50 Outputs low 0.55 0.1 0.1 0.1 0.1 20 20 70 70 – 0.5 – 0.5 – 0.75 – 0.75 – 150 – 50 – 150 37 58 37 58 78 123 78 123 V mA µA mA mA mA Outputs disabled 51 80 51 80 ‡ All typical values are at VCC = 5 V, TA = 25°C. § For I/O ports, the parameters IIH and IIL include the off-state output current. ¶ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN54ALS640B, SN54AS640, SN74ALS640B, SN74AS640 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDAS122A – DECEMBER 1983 – REVISED JANUARY 1995 switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = MIN to MAX† SN54AS640 tPLH tPHL A or B B or A tPZH tPZL OE A or B tPHZ tPLZ OE A or B UNIT SN74AS640 MIN MAX MIN MAX 1 8 2 7 1 7 2 6 2 10 2 8 2 12 2 10 2 9 2 8 2 16 2 13 ns ns ns † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 SN54ALS640B, SN54AS640, SN74ALS640B, SN74AS640 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDAS122A – DECEMBER 1983 – REVISED JANUARY 1995 PARAMETER MEASUREMENT INFORMATION SERIES 54ALS/74ALS AND 54AS/74AS DEVICES 7V RL = R1 = R2 VCC S1 RL R1 Test Point From Output Under Test CL (see Note A) From Output Under Test RL Test Point From Output Under Test CL (see Note A) CL (see Note A) LOAD CIRCUIT FOR BI-STATE TOTEM-POLE OUTPUTS LOAD CIRCUIT FOR OPEN-COLLECTOR OUTPUTS 3.5 V Timing Input Test Point LOAD CIRCUIT FOR 3-STATE OUTPUTS 3.5 V High-Level Pulse 1.3 V R2 1.3 V 1.3 V 0.3 V 0.3 V Data Input tw th tsu 3.5 V 1.3 V 3.5 V Low-Level Pulse 1.3 V 0.3 V 1.3 V 0.3 V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VOLTAGE WAVEFORMS PULSE DURATIONS 3.5 V Output Control (low-level enabling) 1.3 V 1.3 V 0.3 V tPZL Waveform 1 S1 Closed (see Note B) tPLZ [3.5 V 1.3 V tPHZ tPZH Waveform 2 S1 Open (see Note B) 1.3 V VOL 0.3 V VOH 1.3 V 0.3 V [0 V 3.5 V 1.3 V Input 1.3 V 0.3 V tPHL tPLH VOH In-Phase Output 1.3 V 1.3 V VOL tPLH tPHL VOH Out-of-Phase Output (see Note C) 1.3 V 1.3 V VOL VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS NOTES: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. When measuring propagation delay items of 3-state outputs, switch S1 is open. D. All input pulses have the following characteristics: PRR ≤ 1 MHz, tr = tf = 2 ns, duty cycle = 50%. E. The outputs are measured one at a time with one transition per measurement. Figure 1. Load Circuits and Voltage Waveforms 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2022 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) 5962-8872701RA ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-8872701RA SNJ54ALS640BJ Samples 5962-8955301RA ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-8955301RA SNJ54AS640J Samples SN54ALS640BJ ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SN54ALS640BJ Samples SN74ALS640B-1DW ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS640B-1 Samples SN74ALS640B-1DWR ACTIVE SOIC DW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS640B-1 Samples SN74ALS640B-1N ACTIVE PDIP N 20 20 RoHS & Non-Green NIPDAU N / A for Pkg Type 0 to 70 SN74ALS640B-1N Samples SN74ALS640B-1NSR ACTIVE SO NS 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS640B-1 Samples SN74ALS640BDW ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS640B Samples SN74ALS640BDWE4 ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS640B Samples SN74ALS640BDWR ACTIVE SOIC DW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS640B Samples SN74ALS640BN ACTIVE PDIP N 20 20 RoHS & Non-Green NIPDAU N / A for Pkg Type 0 to 70 SN74ALS640BN Samples SN74ALS640BNSR ACTIVE SO NS 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS640B Samples SN74AS640N ACTIVE PDIP N 20 20 RoHS & Non-Green NIPDAU N / A for Pkg Type 0 to 70 SN74AS640N Samples SNJ54ALS640BJ ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-8872701RA SNJ54ALS640BJ Samples SNJ54AS640J ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-8955301RA SNJ54AS640J Samples (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2022 (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of