DM74LS573 FAIRCHILD | Alldatasheet

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Technical content

Features

■ Inputs and outputs on opposite sides of package allow- ing easy interface with microprocessors ■ Useful as input or output port for microprocessors ■ Functionally identical to DM74LS373 ■ Input clamp diodes limit high speed termination effects ■ Fully TTL and CMOS compatible Ordering Code: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbol VCC = Pin 20 GND = Pin 10 Connection Diagram Pin Descriptions Function Tables L = LOW State H = HIGH State X = Don't Care Z = High Impedance State Q O = Previous Condition of O Order Number Package Number Package Description DM74LS573WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide DM74LS573N N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Pin Names Description D0–D7 Data Inputs LE Latch Enable Input (Active HIGH) OE 3-STATE Output Enable Input (Active LOW) O0–O7 3-STATE Latch Outputs Output Latch D Output Enable Enable O LHHH LHLL LLX Q O HXXZ

www.fairchildsemi.com 2 DM74LS573 Absolute Maximum Ratings(Note 1) Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Recommended Operating Conditions

Electrical Characteristics

Over recommended operating free air temperature range (unless otherwise noted) Note 2: All typicals are at VCC = 5V, TA = 25°C. Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second. Supply Voltage 7V Input Voltage 7V Operating Free Air Temperature Range 0°C to +70°C Storage Temperature Range −65°C to +150°C Symbol Parameter Min Nom Max Units V CC Supply Voltage 4.75 5 5.25 V VIH HIGH Level Input Voltage 2 V VIL LOW Level Input Voltage 0.8 V IOH HIGH Level Input Current −2.6 mA IOL LOW Level Output Current 24 mA TA Free Air Operating Temperature 0 70 °C Symbol Parameter Conditions Min Typ Max Units (Note 2) VI Input Clamp Voltage V CC = Min, II = −18 mA −1.5 V VOH HIGH Level V CC = Min, IOH = Max, 2.7 3.4 V Output Voltage V IL = Max VOL LOW Level V CC = Min, IOL = Max, 0.35 0.5 Output Voltage V IH = Min V IOL = 4 mA, VCC = Min 0.25 0.4 II Input Current @ Max Input Voltage V CC = Max, VI = 7V 1 mA IIH HIGH Level Input Current V CC = Max, VI = 2.7V 20 µA IIL LOW Level Input Current V CC = Max, VI = 0.4V −0.4 mA IOS Short Circuit V CC = Max −30 −130 mA Output Current (Note 3) ICC Supply Current V CC = Max 50 mA IOZH 3-STATE Output V CC = VCCH 20 µA OFF Current HIGH V OZH = 2.7V IOZL 3-STATE Output V CC = VCCH −20 µA OFF Current LOW V OZL = 0.4V

3 www.fairchildsemi.com DM74LS573 Switching Characteristics at VCC = 5V and TA = 25°C R L = 2 kΩ , Symbol Parameter C L = 50 pF Units Min Max tPLH Propagation Delay 27 ns tPHL Data to Q 18 tPLH Propagation Delay 36 ns tPHL LE to Q 25 tPZH 3-STATE Enable Time 20 ns tPZL OE to Q 25 tPHZ 3-STATE Enable Time 20 ns tPLZ OE to Q 25 tS(H) Setup Time (HIGH/LOW) 3 ns tS(L) Data to LE 7 tH (H) Hold Time (HIGH/LOW) 10 ns tH (L) Data to LE 10 tW (H) Pulse Width (HIGH) 15 ns Data to LE

www.fairchildsemi.com 4 DM74LS573 Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide Package Number M20B

5 www.fairchildsemi.com DM74LS573 Octal D-Type Latch with 3-STATE Outputs Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Package Number N20A Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be rea- sonably expected to result in a significant injury to the user. 2. A critical component in any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com