SN74ALS620ADWG4

SN74ALS620A, SN74ALS621A, SN74ALS623A, SN74AS623 OCTAL BUS TRANSCEIVERS SDAS226A – DECEMBER 1982 – REVISED JANUARY 1995 • • • DW OR N PACKAGE (TOP VIEW) Local Bus-Latch Capability Choice of True or Inverting Logic Package Options Include Plastic Small-Outline (DW) Packages and Standard Plastic (N) 300-mil DIPs DEVICE OUTPUT LOGIC SN74ALS620A 3 state Inverting SN74ALS621A Open collector True SN74ALS623A, SN74AS623 3 state OEAB A1 A2 A3 A4 A5 A6 A7 A8 GND True description 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC OEBA B1 B2 B3 B4 B5 B6 B7 B8 These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation allows for maximum flexibility in timing. These devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic levels at the output-enable (OEAB and OEBA) inputs. The output-enable inputs disable the device so that the buses are effectively isolated. The dual-enable configuration gives the transceivers the capability to store data by simultaneously enabling OEAB and OEBA. Each output reinforces its input in this transceiver configuration. When both OEAB and OEBA are enabled and all other data sources to the two sets of bus lines are in the high-impedance state, both sets of bus lines (16 total) remain at their last states. The 8-bit codes appearing on the two sets of buses are identical for the SN74ALS621A, SN74ALS623A, and SN74AS623 or complementary for the SN74ALS620A. The -1 versions of the SN74ALS620A and SN74ALS621A are identical to the standard versions, except that the recommended maximum IOL is increased to 48 mA in the -1 versions. The SN74ALS620A, SN74ALS621A, SN74ALS623A, and SN74AS623 are characterized for operation from 0°C to 70°C. FUNCTION TABLE INPUTS OPERATION OEBA OEAB SN74ALS620A SN74ALS621A SN74ALS623A SN74AS623 L L B data to A bus B data to A bus H H A data to B bus A data to B bus H L Isolation Isolation H B data to A bus, A data to B bus B data to A bus, A data to B bus L 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 SN74ALS620A, SN74ALS621A, SN74ALS623A, SN74AS623 OCTAL BUS TRANSCEIVERS SDAS226A – DECEMBER 1982 – REVISED JANUARY 1995 logic symbols† SN74ALS620A 19 OEBA EN1 1 OEAB EN2 2 A1 2 3 A2 A3 A4 A5 A6 A7 A8 18 1 17 4 16 5 15 6 14 7 13 8 12 9 11 19 OEAB A1 A2 A3 A4 A5 A6 A7 A8 1 2 3 19 EN1 OEBA EN2 OEAB 18 1 2 17 4 16 5 15 6 14 7 13 8 12 9 11 B1 B2 A1 A2 B3 A3 B4 A4 B5 B6 B7 B8 A5 A6 A7 A8 1 2 3 B3 B4 B5 B6 B7 B8 POST OFFICE BOX 655303 EN1 EN2 18 1 2 17 4 16 5 15 6 14 7 13 8 12 9 11 † These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. 2 B2 SN74ALS623A, SN74AS623 SN74ALS621A OEBA B1 • DALLAS, TEXAS 75265 B1 B2 B3 B4 B5 B6 B7 B8 SN74ALS620A, SN74ALS621A, SN74ALS623A, SN74AS623 OCTAL BUS TRANSCEIVERS SDAS226A – DECEMBER 1982 – REVISED JANUARY 1995 logic diagrams (positive logic) SN74ALS620A OEBA OEAB SN74ALS621A 19 OEBA 1 OEAB 19 1 18 A1 18 2 B1 A1 2 To Seven Other Transceivers B1 To Seven Other Transceivers SN74ALS623A, SN74AS623 OEBA OEAB A1 19 1 2 18 B1 To Seven Other Transceivers 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: SN74ALS620A, SN74ALS623A . . . . . . . . . . . . . . . . . 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. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SN74ALS620A, SN74ALS621A, SN74ALS623A, SN74AS623 OCTAL BUS TRANSCEIVERS SDAS226A – DECEMBER 1982 – REVISED JANUARY 1995 recommended operating conditions SN74ALS620A SN74ALS623A VCC VIH Supply voltage VIL IOH Low-level input voltage IOL TA High-level input voltage UNIT MIN NOM MAX 4.5 5 5.5 2 V V 0.8 V High-level output current – 15 mA Low-level output current 24 mA 70 °C Operating free-air temperature 0 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SN74ALS620A SN74ALS623A MIN VIK VOH VOL II Control inputs A or B ports VCC = 4.5 V, VCC = 4.5 V to 5.5 V, II = – 18 mA IOH = – 0.4 mA VCC = 4 4.5 5V IOH = – 3 mA IOH = – 15 mA VCC = 4 4.5 5V IOL = 12 mA IOL = 24 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§ 5V VCC = 5 5.5 V, 4V VI = 0 0.4 VCC = 5.5 V, VO = 2.25 V Outputs high IO¶ SN74ALS620A VCC = 5.5 V ICC SN74ALS623A VCC = 5.5 V TYP† UNIT MAX – 1.2 VCC – 2 2.4 V V 3.2 2 0.25 0.4 0.35 0.5 0.1 0.1 20 20 – 0.1 – 0.1 – 30 – 112 24 34 Outputs low 31 44 Outputs disabled 33 47 Outputs high 32 43 Outputs low 39 50 Outputs disabled 42 V mA µA mA mA mA 55 † 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. 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN74ALS620A, SN74ALS621A, SN74ALS623A, SN74AS623 OCTAL BUS TRANSCEIVERS SDAS226A – DECEMBER 1982 – 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† SN74ALS620A tPLH tPHL A B tPLH tPHL B A tPZH tPZL OEBA A tPHZ tPLZ OEBA A tPZH tPZL OEAB B tPHZ tPLZ OEAB B UNIT SN74ALS623A MIN MAX MIN MAX 2 10 2 13 2 10 3 11 2 10 2 13 2 10 3 11 3 17 5 22 5 25 5 22 2 12 2 16 3 18 2 19 3 18 5 22 5 25 5 22 2 12 2 16 3 18 2 19 ns ns ns ns ns ns † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI: All inputs and I/O ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Operating free-air temperature range, TA: SN74ALS621A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 SN74ALS621A MIN NOM MAX 4.5 5 5.5 UNIT VCC VIH Supply voltage VIL VOH Low-level input voltage 0.8 High-level output voltage 5.5 V Low level output current Low-level 24 48§ mA 70 °C IOL High-level input voltage 2 TA Operating free-air temperature § Applies only to the -1 version and only if VCC is between 4.75 V and 5.25 V POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 0 V V V mA 5 SN74ALS620A, SN74ALS621A, SN74ALS623A, SN74AS623 OCTAL BUS TRANSCEIVERS SDAS226A – DECEMBER 1982 – REVISED JANUARY 1995 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER SN74ALS621A TYP† MAX TEST CONDITIONS MIN VIK IOH VCC = 4.5 V, VCC = 4.5 V, II = – 18 mA VOH = 5.5 V VOL 5V VCC = 4 4.5 IOL = 24 mA IOL = 48 mA‡ VCC = 5 5.5 5V VI = 7 V VI = 5.5 V II Control inputs A or B ports 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 5.5 5V ICC – 1.5 0.1 0.35 0.5 0.35 0.5 0.1 0.1 20 20 – 0.1 – 0.1 Outputs high 29 40 Outputs low 35 48 UNIT V mA V mA µA mA mA † 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. switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 680 Ω, TA = MIN to MAX¶ UNIT SN74ALS621A tPLH tPHL A B tPLH tPHL B A tPLH tPHL OEBA A tPLH tPHL OEAB B MIN MAX 10 33 5 20 10 33 5 20 10 39 12 35 10 39 12 35 ¶ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 ns ns ns ns SN74ALS620A, SN74ALS621A, SN74ALS623A, SN74AS623 OCTAL BUS TRANSCEIVERS SDAS226A – DECEMBER 1982 – 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: SN74AS623 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 SN74AS623 MIN NOM MAX 4.5 5 5.5 UNIT VCC VIH Supply voltage VIL IOH Low-level input voltage 0.8 V High-level output current – 15 mA IOL TA Low-level output current 64 mA 70 °C High-level input voltage 2 Operating free-air temperature V V 0 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH VOL II TEST CONDITIONS VCC = 4.5 V, VCC = 4.5 V to 5.5 V, II = – 18 mA IOH = – 2 mA VCC = 4 4.5 5V IOH = – 3 mA IOH = – 15 mA VCC = 4.5 V, Control inputs A or B ports VCC = 5 5.5 5V 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 VCC = 5.5 V VCC – 2 2.4 Outputs low UNIT V V 3.2 2 0.35 0.55 0.1 VI = 5.5 V Control inputs A or B ports§ ICC – 1.2 IOL = 64 mA VI = 7 V IIH IO¶ SN74AS623 TYP‡ MAX MIN 0.1 20 70 – 0.5 – 0.75 – 30 – 150 57 93 16 189 V mA µA mA mA mA Outputs disabled 71 116 ‡ 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. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 SN74ALS620A, SN74ALS621A, SN74ALS623A, SN74AS623 OCTAL BUS TRANSCEIVERS SDAS226A – DECEMBER 1982 – 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† UNIT SN74AS623 tPLH tPHL A B tPLH tPHL B A tPZH tPZL OEBA A tPHZ tPLZ OEBA A tPZH tPZL OEAB B tPHZ tPLZ OEAB B MIN MAX 1 9 1 8 1 9 1 8.5 2 11 2 10 1 7.5 1 11.5 2 11.5 2 11 1 7 1 9 † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 ns ns ns ns ns ns SN74ALS620A, SN74ALS621A, SN74ALS623A, SN74AS623 OCTAL BUS TRANSCEIVERS SDAS226A – DECEMBER 1982 – 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 tsu Data Input tw th 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 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 9 PACKAGE OPTION ADDENDUM www.ti.com 14-Oct-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) SN74ALS620ADW ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS620A Samples SN74ALS620AN ACTIVE PDIP N 20 20 RoHS & Non-Green NIPDAU N / A for Pkg Type 0 to 70 SN74ALS620AN Samples SN74ALS621A-1N ACTIVE PDIP N 20 20 RoHS & Non-Green NIPDAU N / A for Pkg Type 0 to 70 SN74ALS621A-1N Samples SN74ALS621ADW ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS621A Samples SN74ALS621AN ACTIVE PDIP N 20 20 RoHS & Non-Green NIPDAU N / A for Pkg Type 0 to 70 SN74ALS621AN Samples SN74ALS623ADW ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS623A Samples SN74ALS623AN ACTIVE PDIP N 20 20 RoHS & Non-Green NIPDAU N / A for Pkg Type 0 to 70 SN74ALS623AN Samples SN74ALS623ANSR ACTIVE SO NS 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS623A 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. (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