SN54ALS580B, SN74ALS580B, SN74AS580 OCTAL D-TYPE TRANSPARENT LATCHES WITH 3-STATE OUTPUTS SDAS277 – JANUARY 1995 OE 1D 2D 3D 4D 5D 6D 7D 8D GND description These octal D-type transparent latches feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q LE 2D 1D SN54ALS580B . . . FK PACKAGE (TOP VIEW) While the latch-enable (LE) input is high, outputs (Q) respond to the data (D) inputs. When LE is low, the outputs are latched to retain the data that was set up. 3D 4D 5D 6D 7D 4 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 2Q 3Q 4Q 5Q 6Q 8D GND LE 8Q 7Q A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or low) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus lines without interface or pullup components. 3 1Q • • • SN54ALS580B . . . J OR W PACKAGE SN74ALS580B, SN74AS580 . . . DW OR N PACKAGE (TOP VIEW) 3-State Buffer-Type Outputs Drive Bus Lines Directly Bus-Structured Pinout Inverting-Logic Outputs Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), Standard Plastic (N) and Ceramic (J) 300-mil DIPs, and Ceramic Flat (W) Packages OE VCC • OE does not affect internal operations of the latches. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. The SN54ALS580B is characterized for operation over the full military temperature range of – 55°C to 125°C. The SN74ALS580B and SN74AS580 are characterized for operation from 0°C to 70°C. FUNCTION TABLE (each latch) INPUTS OUTPUT Q OE LE D L H H L L H L H L L X Q0 H X X Z 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 SN54ALS580B, SN74ALS580B, SN74AS580 OCTAL D-TYPE TRANSPARENT LATCHES WITH 3-STATE OUTPUTS SDAS277 – JANUARY 1995 logic symbol† OE LE 1D 2D 3D 4D 5D 6D 7D 8D 1 11 2 logic diagram (positive logic) EN OE C1 19 1D 3 18 4 17 5 16 6 15 7 14 8 13 9 12 LE 1 11 1Q C1 2Q 3Q 1D 2 19 1Q 1D 4Q 5Q 6Q 7Q To Seven Other Channels 8Q † 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Voltage applied to a disabled 3-state output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V Operating free-air temperature range, TA: SN54ALS580B . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C SN74ALS580B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 SN54ALS580B SN74ALS580B 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 0.7 0.8 High-level output current –1 – 2.6 mA IOL tw Low-level output current 12 24 mA Pulse duration, LE high 15 15 ns tsu th Setup time, data before LE↓ 20 10 ns Hold time, data after LE↓ 12 10 ns TA Operating free-air temperature 2 High-level input voltage 2 – 55 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 2 125 0 V V 70 V °C SN54ALS580B, SN74ALS580B, SN74AS580 OCTAL D-TYPE TRANSPARENT LATCHES WITH 3-STATE OUTPUTS SDAS277 – JANUARY 1995 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VCC = 4.5 V, VCC = 4.5 V to 5.5 V, II = – 18 mA IOH = – 0.4 mA 5V VCC = 4 4.5 IOH = – 1 mA IOH = – 2.6 mA VOL VCC = 4 4.5 5V IOL = 12 mA IOL = 24 mA IOZH IOZL VCC = 5.5 V, VCC = 5.5 V, VO = 2.7 V VO = 0.4 V II IIH VCC = 5.5 V, VCC = 5.5 V, VI = 7 V VI = 2.7 V IIL IO‡ VCC = 5.5 V, VCC = 5.5 V, VI = 0.4 V VO = 2.25 V VOH ICC SN54ALS580B TYP† MAX TEST CONDITIONS VCC = 5.5 V MIN SN74ALS580B TYP† MAX MIN – 1.2 VCC – 2 2.4 – 1.2 UNIT V VCC – 2 V 3.3 2.4 0.25 – 20 3.2 0.4 0.25 0.4 0.35 0.5 V µA 20 20 – 20 – 20 µA 0.1 0.1 mA 20 20 µA – 0.13 – 0.1 mA – 112 mA – 112 – 30 Outputs high 10 17 10 17 Outputs low 16 26 16 26 mA Outputs disabled 17 29 17 29 † 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. 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§ SN54ALS580B tPLH tPHL D Q tPLH tPHL LE Q tPZH tPZL OE Q tPHZ tPLZ OE Q UNIT SN74ALS580B MIN MAX MIN MAX 3 26 3 18 3 15 3 14 8 29 6 22 4 22 6 21 4 25 3 18 4 21 4 18 2 12 1 10 3 22 1 15 ns 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 SN54ALS580B, SN74ALS580B, SN74AS580 OCTAL D-TYPE TRANSPARENT LATCHES WITH 3-STATE OUTPUTS SDAS277 – JANUARY 1995 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: SN74AS580 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 SN74AS580 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 tw* Low-level output current 48 mA Pulse duration, LE high 2 ns tsu* th* Setup time, data before LE↓ 2 ns Hold time, data after LE↓ 3 High-level input voltage 2 V V ns TA Operating free-air temperature 0 70 * On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data but is not production tested. °C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH VOL IOZH IOZL II IIH IIL IO§ ICC TEST CONDITIONS VCC = 4.5 V, VCC = 4.5 V to 5.5 V, II = – 18 mA IOH = – 2 mA VCC = 4.5 V, VCC = 4.5 V, IOH = – 15 mA IOL = 48 mA VCC = 5.5 V, VCC = 5.5 V, VO = 2.7 V VO = 0.4 V VCC = 5.5 V, VCC = 5.5 V, VI = 7 V VI = 2.7 V VCC = 5.5 V, VCC = 5.5 V, VI = 0.4 V VO = 2.25 V VCC = 5.5 V SN74AS580 MIN TYP‡ MAX – 1.2 VCC – 2 2.4 – 30 V V 3.3 0.33 UNIT 0.5 V 50 µA – 50 µA 0.1 mA 20 µA – 0.5 mA – 112 mA Outputs high 62 100 Outputs low 65 106 mA Outputs disabled 71 115 ‡ 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. 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN54ALS580B, SN74ALS580B, SN74AS580 OCTAL D-TYPE TRANSPARENT LATCHES WITH 3-STATE OUTPUTS SDAS277 – 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 SN74AS580 tPLH tPHL D Q tPLH tPHL LE Q tPZH tPZL OE Q tPHZ tPLZ OE Q MIN MAX 3 7.5 3 7 5 9 4 8 2 6.5 4 9.5 2 6.5 2 7 ns 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 SN54ALS580B, SN74ALS580B, SN74AS580 OCTAL D-TYPE TRANSPARENT LATCHES WITH 3-STATE OUTPUTS SDAS277 – 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 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER’S RISK. In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, warranty or endorsement thereof. Copyright 1998, Texas Instruments Incorporated