74ALS161

DM74ALS161B FAIRCHILD | Alldatasheet

Document overview

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Technical content

Features

■ Switching specifications at 50 pF ■ Switching specifications guaranteed over full tempera- ture and VCC range ■ Advanced oxide-isolated, ion-implanted Schottky TTL process ■ Functionally and pin-for-pin compatible with Schottky and low power Schottky TTL counterpart ■ Improved AC performance over Schottky and low power Schottky counterparts ■ Synchronously programmable ■ Internal look ahead for fast counting ■ Carry output for n-bit cascading ■ Synchronous counting ■ Load control line ■ ESD inputs Ordering Code: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Order Number Package Number Package Description DM74ALS161BM M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow DM74ALS161BN N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide DM74ALS162BM M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow DM74ALS162BN N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide DM74ALS163BM M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow DM74ALS163BN N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

www.fairchildsemi.com 2 DM74ALS161B • DM74ALS162B • DM74ALS163B Connection Diagram Mode Select Table H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Logic Diagrams DM74ALS161B Clear Load Enable T Enable P Action on the Rising Clock Edge (/c17 ) L X X X Reset (Clear) H L X X Load (P n → Qn) H H H H Count (Increment) H H L X No Change (Hold) H H X L No Change (Hold)

3 www.fairchildsemi.com DM74ALS161B • DM74ALS162B • DM74ALS163B Logic Diagrams (Continued) DM74ALS162B DM74ALS163B

www.fairchildsemi.com 4 DM74ALS161B • DM74ALS162B • DM74ALS163B Timing Diagrams DM74ALS162B

5 www.fairchildsemi.com DM74ALS161B • DM74ALS162B • DM74ALS163B Timing Diagrams (continued) DM74ALS161B, DM74ALS163B

www.fairchildsemi.com 6 DM74ALS161B • DM74ALS162B • DM74ALS163B 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 Note 2: The symbol (↑) indicates that the rising edge of the clock is used as a reference. Supply Voltage 7V Input Voltage 7V Operating Free Air Temperature Range 0 °C to +70°C Storage Temperature Range −65°C to +150°C Typical θJA N Package 78.1 °C/W M Package 106.8 °C/W Symbol Parameter Min Nom Max Units V CC Supply Voltage 4.5 5 5.5 V VIH HIGH Level Input Voltage 2 V VIL LOW Level Input Voltage 0.8 V IOH HIGH Level Output Current −0.4 mA IOL LOW Level Output Current 8 mA fCLK Clock Frequency 0 40 MHz tSETUP Setup Time Data; A, B, C, D 15 ↑ (Note 2) ns En P , En T DM74ALS161B 15 ↑ (Note 2) ns DM74ALS162B 15↑ (Note 2) nsDM74ALS163B Load 15↑ (Note 2) ns Clear (Only for DM74ALS162B and DM74ALS163B) LOW 15 ↑ (Note 2) ns HIGH 12 ↑ (Note 2) ns Setup 1 (Only for 161B) Clear Inactive 10 4 ns tHOLD Hold Time Data; A, B, C, D 0 ↑ (Note 2) −3n s En P, En T 0 ↑ (Note 2) −3n s Load 0↑ (Note 2) −4n s Clear (Only for DM74ALS162B and DM74ALS163B 0↑ (Note 2) −7n s Hold 0 (Only for 161B) Clear 0 −4n s tW Width of Clock CLK HIGH or LOW 12.5 ns or Clear Pulse DM74ALS161B CLR LOW 15 ns Width of Load Pulse 15 ns TA Operating Free Air Temperature 0 70 °C

7 www.fairchildsemi.com DM74ALS161B • DM74ALS162B • DM74ALS163B

Electrical Characteristics

over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C. Switching Characteristics DM74ALS161B over recommended operating free air temperature range. Switching Characteristics DM74ALS162B, DM74ALS163B over recommended operating free air temperature range. Symbol Parameter Conditions Min Typ Max Units VIK Input Clamp Voltage V CC = 4.5V, II = −18 mA −1.5 V VOH HIGH Level I OH = −0.4 mA VCC − 2V Output Voltage V CC = 4.5V to 5.5V VOL LOW Level V CC = 4.5V I OL = 4 mA 0.25 0.4 V Output Voltage I OL = 8 mA 0.35 0.5 V II Input Current at Max VCC = 5.5V, VIH = 7V 0.1 mA Input Voltage IIH HIGH Level Input Current V CC = 5.5V, VIH = 2.7V 20 µA IIL LOW Level Input Current V CC = 5.5V, VIL = 0.4V −0.2 mA IO Output Drive Current V CC = 5.5V, VO = 2.25V −30 −112 mA ICC Supply Current V CC = 5.5V 12 21 mA Symbol Parameter Conditions From To Min Max Units fMAX Maximum Clock Frequency V CC = 4.5V to 5.5V 40 MHz tPLH Propagation Delay Time R L = 500Ω Clock Ripple 52 0 n s LOW-to-HIGH Level Output C L = 50 pF Carry tPHL Propagation Delay Time Clock Ripple 52 0 n s HIGH-to-LOW Level Output Carry tPLH Propagation Delay Time Clock Any Q 4 15 ns LOW-to-HIGH Level Output tPHL Propagation Delay Time Clock Any Q 6 20 ns HIGH-to-LOW Level Output tPLH Propagation Delay Time En T Ripple 31 3 n s LOW-to-HIGH Level Output Carry tPHL Propagation Delay Time En T Ripple 31 3 n s HIGH-to-LOW Level Output Carry tPHL Propagation Delay Time Clear Any Q 8 24 ns HIGH-to-LOW Level Output Clear Ripple 11 23 ns Carry Symbol Parameter Conditions From To Min Max Units fMAX Maximum Clock Frequency V CC = 4.5V to 5.5V 40 MHz tPLH Propagation Delay Time R L = 500Ω Clock Ripple 52 0 n s LOW-to-HIGH Level Output C L = 50 pF Carry tPHL Propagation Delay Time T A = Min to Max Clock Ripple 52 0 n s HIGH-to-LOW Level Output Carry tPLH Propagation Delay Time Clock Any Q 4 15 ns LOW-to-HIGH Level Output tPHL Propagation Delay Time Clock Any Q 6 20 ns HIGH-to-LOW Level Output tPLH Propagation Delay Time En T Ripple 31 3 n s LOW-to-HIGH Level Output Carry tPHL Propagation Delay Time En T Ripple 31 3 n s HIGH-to-LOW Level Output Carry

www.fairchildsemi.com 8 DM74ALS161B • DM74ALS162B • DM74ALS163B Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow Package Number M16A

9 www.fairchildsemi.com DM74ALS161B • DM74ALS162B • DM74ALS163B Synchronous Four-Bit Counter Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Package Number N16E 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