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DM74ALS162BMX

DM74ALS162BMX

DM74ALS162BMX

For Reference Only

Part Number DM74ALS162BMX
Manufacturer Fairchild/ON Semiconductor
Description IC COUNTER 4BIT DECADE 16SOIC
Datasheet DM74ALS162BMX Datasheet
Package 16-SOIC (0.154", 3.90mm Width)
In Stock 170 piece(s)
Unit Price Request a Quote
Lead Time To be Confirmed
Estimated Delivery Time Nov 27 - Dec 2 (Choose Expedited Shipping)
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Part Number # DM74ALS162BMX (Logic - Counters, Dividers) is manufactured by Fairchild/ON Semiconductor and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

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DM74ALS162BMX Specifications

ManufacturerFairchild/ON Semiconductor
CategoryIntegrated Circuits (ICs) - Logic - Counters, Dividers
Datasheet DM74ALS162BMXDatasheet
Package16-SOIC (0.154", 3.90mm Width)
Series74ALS
Logic TypeCounter, Decade
DirectionUp
Number of Elements1
Number of Bits per Element4
ResetSynchronous
TimingSynchronous
Count Rate40MHz
Trigger TypePositive Edge
Voltage - Supply4.5 V ~ 5.5 V
Operating Temperature0°C ~ 70°C
Mounting TypeSurface Mount
Package / Case16-SOIC (0.154", 3.90mm Width)
Supplier Device Package16-SOIC

DM74ALS162BMX Datasheet

Page 1

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© 2000 Fairchild Semiconductor Corporation DS006206 www.fairchildsemi.com April 1984 Revised February 2000 D M 7 4 A L S 1 6 1 B • D M 7 4 A L S 1 6 2 B • D M 7 4 A L S 1 6 3 B S y n c h ro n o u s F o u r-B it C o u n te r DM74ALS161B • DM74ALS162B • DM74ALS163B Synchronous Four-Bit Counter General Description These synchronous presettable counters feature an inter- nal carry look ahead for application in high speed counting designs. The DM74ALS162B is a four-bit decade counter, while the DM74ALS161B and DM74ALS163B are four-bit binary counters. The DM74ALS161B clears asynchro- nously, while the DM74ALS162B and DM74ALS163B clear synchronously. The carry output is decoded to prevent spikes during normal counting mode of operation. Synchro- nous operation is provided by having all flip-flops clocked simultaneously so that outputs change coincident with each other when so instructed by count enable inputs and internal gating. This mode of operation eliminates the out- put counting spikes which are normally associated with asynchronous (ripple clock) counters. A buffered clock input triggers the four flip-flops on the rising (positive- going) edge of the clock input waveform. These counters are fully programmable, that is, the outputs may be preset to either level. As presetting is synchronous, setting up a low level at the load input disables the counter and causes the outputs to agree with set up data after the next clock pulse regardless of the levels of enable input. LOW-to-HIGH transitions at the load input are perfectly acceptable regardless of the logic levels on the clock or enable inputs. The DM74ALS161B clear function is asynchronous. A low level at the clear input sets all four of the flip-flop outputs LOW regardless of the levels of clock, load or enable inputs. These two counters are provided with a clear on power-up feature. The DM74ALS162B and DM74ALS163B clear function is synchronous; and a low level at the clear input sets all four of the flip-flop outputs LOW after the next clock pulse, regardless of the levels of enable inputs. This synchronous clear allows the count length to be modified easily, as decoding the maximum count desired can be accomplished with one external NAND gate. The gate out- put is connected to the clear input to synchronously clear the counter to all low outputs. LOW-to-HIGH transitions at the clear input of the DM74ALS162B and DM74ALS163B are also permissible regardless of the levels of logic on the clock, enable or load inputs. The carry look ahead circuitry provides for cascading counters for n bit synchronous application without addi- tional gating. Instrumental in accomplishing this function are two count enable inputs (P and T) and a ripple carry output. Both count enable inputs must be HIGH to count. The T input is fed forward to enable the ripple carry output. The ripple carry output thus enabled will produce a high level output pulse with a duration approximately equal to the high level portion of QA output. This high level overflow ripple carry pulse can be used to enable successive cas- caded stages. HIGH-to-LOW level transitions at the enable P or T inputs of the DM74ALS161B through DM74ALS163B may occur regardless of the logic level on the clock. The DM74ALS161B through DM74ALS163B feature a fully independent clock circuit. changes made to control inputs (enable P or T, or load) that will modify the operating mode will have no effect until clocking occurs. The function of the counter (whether enabled, disabled, loading or counting) will be dictated solely by the conditions meeting the stable set-up and hold times. 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

Page 3

www.fairchildsemi.com 2 D M 7 4 A L S 1 6 1 B • D M 7 4 A L S 1 6 2 B • D M 7 4 A L S 1 6 3 B 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 () L X X X Reset (Clear) H L X X Load (Pn → Qn) H H H H Count (Increment) H H L X No Change (Hold) H H X L No Change (Hold)

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3 www.fairchildsemi.com D M 7 4 A L S 1 6 1 B • D M 7 4 A L S 1 6 2 B • D M 7 4 A L S 1 6 3 B Logic Diagrams (Continued) DM74ALS162B DM74ALS163B

Page 5

www.fairchildsemi.com 4 D M 7 4 A L S 1 6 1 B • D M 7 4 A L S 1 6 2 B • D M 7 4 A L S 1 6 3 B Timing Diagrams DM74ALS162B

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5 www.fairchildsemi.com D M 7 4 A L S 1 6 1 B • D M 7 4 A L S 1 6 2 B • D M 7 4 A L S 1 6 3 B Timing Diagrams (continued) DM74ALS161B, DM74ALS163B

Page 7

www.fairchildsemi.com 6 D M 7 4 A L S 1 6 1 B • D M 7 4 A L S 1 6 2 B • D M 7 4 A L S 1 6 3 B 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 VCC 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) ns DM74ALS163B 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) −3 ns En P, En T 0↑ (Note 2) −3 ns Load 0↑ (Note 2) −4 ns Clear (Only for DM74ALS162B and DM74ALS163B 0↑ (Note 2) −7 ns Hold 0 (Only for 161B) Clear 0 −4 ns 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

Page 8

7 www.fairchildsemi.com D M 7 4 A L S 1 6 1 B • D M 7 4 A L S 1 6 2 B • D M 7 4 A L S 1 6 3 B 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 VCC = 4.5V, II = −18 mA −1.5 V VOH HIGH Level IOH = −0.4 mA VCC − 2 V Output Voltage VCC = 4.5V to 5.5V VOL LOW Level VCC = 4.5V IOL = 4 mA 0.25 0.4 V Output Voltage IOL = 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 VCC = 5.5V, VIH = 2.7V 20 µA IIL LOW Level Input Current VCC = 5.5V, VIL = 0.4V −0.2 mA IO Output Drive Current VCC = 5.5V, VO = 2.25V −30 −112 mA ICC Supply Current VCC = 5.5V 12 21 mA Symbol Parameter Conditions From To Min Max Units fMAX Maximum Clock Frequency VCC = 4.5V to 5.5V 40 MHz tPLH Propagation Delay Time RL = 500Ω Clock Ripple 5 20 ns LOW-to-HIGH Level Output CL = 50 pF Carry tPHL Propagation Delay Time Clock Ripple 5 20 ns 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 3 13 ns LOW-to-HIGH Level Output Carry tPHL Propagation Delay Time En T Ripple 3 13 ns 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 VCC = 4.5V to 5.5V 40 MHz tPLH Propagation Delay Time RL = 500Ω Clock Ripple 5 20 ns LOW-to-HIGH Level Output CL = 50 pF Carry tPHL Propagation Delay Time TA = Min to Max Clock Ripple 5 20 ns 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 3 13 ns LOW-to-HIGH Level Output Carry tPHL Propagation Delay Time En T Ripple 3 13 ns HIGH-to-LOW Level Output Carry

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www.fairchildsemi.com 8 D M 7 4 A L S 1 6 1 B • D M 7 4 A L S 1 6 2 B • D M 7 4 A L S 1 6 3 B Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow Package Number M16A

DM74ALS162BMX Reviews

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Madd*****aymond

November 15, 2020

can supply almost all of my necessary parts in short lead time.

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November 15, 2020

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November 13, 2020

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November 8, 2020

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November 6, 2020

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October 30, 2020

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October 29, 2020

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October 26, 2020

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October 15, 2020

Comparison with other company, Heisener is my first choice for supplier.

DM74ALS162BMX Guarantees

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If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

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