MC74HC161A HC163A identical pinout LS161 LS163. device inputs compatib
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MC74HC161A, MC74HC163A Presettable Counters
MC74HC161A HC163A identical pinout LS161 LS163. device inputs compatible with standard CMOS outputs; with pullup resistors, they compatible with LSTTL outputs. HC161A HC163A programmable 4-bit binary counters with asynchronous synchronous reset, respectively.
Output Drive Capability: LSTTL Loads Outputs Directly Interface CMOS, NMOS, Operating Voltage Range: Input Current: High Noise Immunity Characteristic CMOS Devices Compliance with Requirements Defined JEDEC Standard Chip Complexity: FETs Equivalent Gates
Device Count Mode Binary Binary Reset Mode
PDIP-16 SUFFIX CASE
MC74HC16xAN AWLYYWW
SO-16 SUFFIX CASE 751B
HC16xA AWLYWW
Assembly Location Wafer Year Work Week
HC161A HC163A Asynchronous Synchronous
ORDERING INFORMATION
Device MC74HC16xAN MC74HC16xAD MC74HC16xADR2 RIPPLE CARRY BINARY OUTPUT Package PDIP-16 SOIC-16 SOIC-16 Shipping 2000 Rail 2500 Reel
LOGIC DIAGRAM
PRESET DATA INPUTS
ASSIGNMENT
RESET CLOCK ENABLE RIPPLE CARRY ENABLE LOAD
CLOCK
RESET LOAD COUNT ENABLES ENABLE ENABLE
Clock
FUNCTION TABLE
Inputs Reset* Load Enable Enable Output Reset Load Preset Data Count Count Count
*HC163A only. HC161A Asynchronous Reset Device high level, level, don't care
Semiconductor Components Industries, LLC, 2000
March, 2000 Rev.
Publication Order Number: MC74HC161A/D
MC74HC161A, MC74HC163A
MAXIMUM RATINGS*
Symbol Parameter Value Unit Supply Voltage (Referenced GND) Input Voltage (Referenced GND) Vout Output Voltage (Referenced GND) Input Current, Iout Output Current, Supply Current, Pins Power Dissipation Still Air, Storage Temperature Plastic SOIC Package Tstg
This device contains protection circuitry guard against damage high static voltages electric fields. However, precautions must taken avoid applications voltage higher than maximum rated voltages this high-impedance circuit. proper operation, Vout should constrained range (Vin Vout) VCC. Unused inputs must always tied appropriate logic voltage level (e.g., either VCC). Unused outputs must left open.
Lead Temperature, from Case Seconds (Plastic SOIC Package)
*Maximum Ratings those values beyond which damage device occur. Functional operation should restricted Recommended Operating Conditions. Derating Plastic DIP: mW/_C from 125_C SOIC Package: mW/_C from 125_C high frequency heavy load considerations, Chapter Semiconductor High-Speed CMOS Data Book (DL129/D).
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Unit Supply Voltage (Referenced GND) Vin, Vout Input Voltage, Output Voltage (Referenced GND) Operating Temperature, Package Types Input Rise Fall Time (Figure 1000
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NOTE: Information typical parametric values found Chapter Semiconductor High-Speed CMOS Data Book (DL129/D).
ELECTRICAL CHARACTERISTICS (Voltages Referenced GND)
Symbol
Maximum Quiescent Supply Current (per Package)
Maximum Input Leakage Current
Maximum Low-Level Output Voltage
Minimum High-Level Output Voltage
Maximum Low-Level Input Voltage
Minimum High-Level Input Voltage
Parameter
|Iout|
|Iout|
Iout
|Iout| |Iout| |Iout|
|Iout| |Iout| |Iout|
Vout |Iout|
Vout |Iout|
MC74HC161A, MC74HC163A
Test Conditions
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25_C
1.35 3.15 0.26 0.26 0.26 2.48 3.98 5.48
Guaranteed Limit
85_C 125_C
0.33 0.33 0.33 2.34 3.84 5.34 1.35 3.15
1.35 3.15
Unit
ELECTRICAL CHARACTERISTICS Input
Symbol tTLH, tTHL tPHL tPHL tPLH tPHL tPLH tPHL tPHL tPLH fmax Maximum Input Capacitance Maximum Output Transition Time, Output Maximum Propagation Delay, Reset Ripple Carry (HC161A Only) Maximum Propagation Delay, Clock Ripple Carry Maximum Propagation Delay, Enable Ripple Carry Maximum Propagation Delay, Reset (HC161A Only) Maximum Propagation Delay, Clock Maximum Clock Frequency (50% Duty Cycle)* Parameter
*Applies noncascaded/nonsynchronous clocked configurations only with synchronously cascaded counters. Clock Ripple Carry propagation delays. Enable Enable Clock setup times Clock Enable Enable hold times determine fmax. However, Ripple Carry each stage tied Clock next stage (nonsynchronously clocked) fmax table above applicable. Applications information this data sheet. NOTE: propagation delays with loads other than information typical parametric values, Chapter Semiconductor High-Speed CMOS Data Book (DL129/D).
Used determine no-load dynamic power consumption: load considerations, Chapter Semiconductor High-Speed CMOS Data Book (DL129/D).
Power Dissipation Capacitance (Per Gate)*
MC74HC161A, MC74HC163A
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Fig. 25_C Typical 25°C, Guaranteed Limit
85_C 125_C
Unit
TIMING REQUIREMENTS Input
Symbol trec trec Maximum Input Rise Fall Times Minimum Pulse Width, Reset (HC161A Only) Minimum Pulse Width, Clock Minimum Recovery Time, Load Inactive Clock Minimum Recovery Time, Reset Inactive Clock (HC161A Only) Minimum Hold Time, Clock Enable Enable Minimum Hold Time, Clock Reset (HC163A Only) Minimum Hold Time, Clock Load Preset Data Inputs Minimum Setup Time, Enable Enable Clock Minimum Setup Time, Reset Clock (HC163A Only) Minimum Setup Time, Load Clock Minimum Setup Time, Preset Data Inputs Clock Parameter
MC74HC161A, MC74HC163A
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Fig. 25_C 1000 Guaranteed Limit
85_C 125_C
1000
1000
Unit
MC74HC161A, MC74HC163A
FUNCTION DESCRIPTION HC161A/163A programmable 4-bit synchronous counters that feature parallel Load, synchronous asynchronous Reset, Carry Output cascading count-enable controls. HC161A HC163A binary counters with asynchronous Reset synchronous Reset, respectively.
INPUTS Clock (Pin
level. HC161A resets asynchronously, HC163A resets with rising edge Clock input (synchronous reset).
Loading
internal flip-flops toggle output count advances with rising edge Clock input. addition, control functions, such resetting loading occur with rising edge Clock input.
Preset Data Inputs (Pins
With rising edge Clock, level Load (Pin loads data from Preset Data input pins (P0, into internal flip-flops onto output pins, through count function disabled long Load low.
Count Enable/Disable
These data inputs programmable counting. Data these pins synchronously loaded into internal flip-flops appear counter outputs. (Pin least-significant (Pin most-significant bit.
OUTPUTS (Pins
These devices have count-enable control pins: Enable (Pin Enable (Pin 10). devices count when these pins Load high. logic equation
Count Enable Enable Enable Load
count either enabled disabled control inputs according Table general, Enable count-enable control: Enable both count-enable Ripple-Carry Output control.
Table Count Enable/Disable
Control Inputs Load Enable Enable Result Outputs Count Count Count Count High when Q0-Q3 maximum* High when Q0-Q3 maximum* Ripple Carry
These counter outputs. (Pin least-significant (Pin most-significant bit.
Ripple Carry (Pin
When counter maximum state 1111, this output goes high, providing external look-ahead carry pulse that used enable successive cascaded counters. Ripple Carry remains high only during maximum count state. logic equation this output
Ripple Carry Enable CONTROL FUNCTIONS Resetting
through maximum when 1111.
level Reset (Pin resets internal flip-flops sets outputs through OUTPUT STATE DIAGRAMS
Binary Counters
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MC74HC161A, MC74HC163A
SWITCHING WAVEFORMS
1/fmax tPLH tPHL OUTPUT tTLH tTHL OUTPUT RESET tPHL trec CLOCK
CLOCK
Figure
Figure
ENABLE tPLH RIPPLE CARRY tTLH
tPHL CLOCK tTHL RESET
Figure
VALID INPUTS LOAD CLOCK trec CLOCK
Figure HC163A Only
VALID ENABLE ENABLE
Figure TEST CIRCUIT
TEST POINT OUTPUT DEVICE UNDER TEST
Figure
*Includes probe capacitance
Figure
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LOAD LOAD
LOAD LOAD LOAD LOAD
Figure 4-Bit Binary Counter with Asynchronous Reset (MC74HC161A)
MC74HC161A, MC74HC163A
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LOAD LOAD
ENABLE
LOAD LOAD
RIPPLE CARRY
ENABLE RESET
LOAD CLOCK
flip-flops shown circuit diagrams Toggle-Enable flip-flops. Toggle- Enable flip-flop combination flip-flop flip-flop. When loading data from Preset inputs Load signal used disable Toggle input (Tn) flip-flop. logic level input then clocked output flip-flop next rising edge clock. logic zero Reset device input forces internal clock high resets output flip-flop low.
MC74HC161A, MC74HC163A
Sequence illustrated waveforms: Reset outputs zero. Preset binary twelve. Count thirteen, fourteen, fifteen, zero, two. Inhibit. RESET (HC161A) RESET (HC163A) LOAD
(ASYNCHRONOUS) (SYNCHRONOUS)
PRESET DATA INPUTS CLOCK (HC161A) CLOCK (HC163A)
COUNT ENABLES
ENABLE ENABLE
OUTPUTS RIPPLE CARRY RESET
LOAD
COUNT
INHIBIT
Figure Timing Diagram
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LOAD LOAD
LOAD LOAD LOAD LOAD
Figure 4-Bit Binary Counter with Synchronous Reset (MC74HC163A)
MC74HC161A, MC74HC163A
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LOAD LOAD
ENABLE
LOAD LOAD
RIPPLE CARRY
ENABLE RESET
LOAD CLOCK
flip-flops shown circuit diagrams Toggle-Enable flip-flops. Toggle- Enable flip-flop combination flip-flop flip-flop. When loading data from Preset inputs Load signal used disable Toggle input (Tn) flip-flop. logic level input then clocked output flip-flop next rising edge clock. logic zero Reset device input forces internal clock high resets output flip-flop low.
MC74HC161A, MC74HC163A
TYPICAL APPLICATIONS CASCADING
LOAD INPUTS INPUTS INPUTS
LOAD COUNT DISABLE COUNT DISABLE
LOAD
LOAD
ENABLE ENABLE CLOCK RIPPLE CARRY
ENABLE ENABLE CLOCK RIPPLE CARRY
ENABLE ENABLE CLOCK RIPPLE CARRY MORE SIGNIFICANT STAGES
RESET OUTPUTS CLOCK NOTE: When used these cascaded configurations clock fmax guaranteed limits apply. Actual performance will depend number stages. This limitation times between Enable (Port) Clock. OUTPUTS OUTPUTS
Figure N-Bit Synchronous Counters
INPUTS LOAD ENABLE ENABLE LOAD LOAD
INPUTS
INPUTS
LOAD
ENABLE ENABLE CLOCK CLOCK RESET RIPPLE CARRY
ENABLE ENABLE CLOCK RIPPLE CARRY
ENABLE ENABLE CLOCK RIPPLE CARRY MORE SIGNIFICANT STAGES
OUTPUTS
OUTPUTS
OUTPUTS
Figure Nibble Ripple Counter
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MC74HC161A, MC74HC163A
TYPICAL APPLICATIONS VARYING MODULUS
HC163A
OTHER INPUTS RESET OPTIONAL BUFFER NOISE REJECTION OUTPUT
HC163A
OTHER INPUTS RESET OPTIONAL BUFFER NOISE REJECTION OUTPUT
Figure Modulo-5 Counter
Figure Modulo-11 Counter
HC163A facilitates designing counters modulus with minimal external logic. output glitch-free synchronous Reset.
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MC74HC161A, MC74HC163A
PACKAGE DIMENSIONS
PDIP-16 SUFFIX CASE 648-08 ISSUE
NOTES: DIMENSIONING TOLERANCING ANSI Y14.5M, 1982. CONTROLLING DIMENSION: INCH. DIMENSION CENTER LEADS WHEN FORMED PARALLEL. DIMENSION DOES INCLUDE MOLD FLASH. ROUNDED CORNERS OPTIONAL. INCHES MILLIMETERS 0.740 0.770 18.80 19.55 0.250 0.270 6.85 6.35 0.145 0.175 4.44 3.69 0.015 0.021 0.53 0.39 0.040 0.070 1.77 1.02 0.100 2.54 0.050 1.27 0.008 0.015 0.38 0.21 0.110 0.130 3.30 2.80 0.295 0.305 7.74 7.50 0.020 0.040 1.01 0.51
0.25 (0.010)
SEATING PLANE
SOIC-16 SUFFIX CASE 751B-05 ISSUE
NOTES: DIMENSIONING TOLERANCING ANSI Y14.5M, 1982. CONTROLLING DIMENSION: MILLIMETER. DIMENSIONS INCLUDE MOLD PROTRUSION. MAXIMUM MOLD PROTRUSION 0.15 (0.006) SIDE. DIMENSION DOES INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL 0.127 (0.005) TOTAL EXCESS DIMENSION MAXIMUM MATERIAL CONDITION. MILLIMETERS 9.80 10.00 4.00 3.80 1.75 1.35 0.49 0.35 1.25 0.40 1.27 0.25 0.19 0.25 0.10 6.20 5.80 0.50 0.25 INCHES 0.386 0.393 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 0.008 0.009 0.004 0.009 0.229 0.244 0.010 0.019
0.25 (0.010)
SEATING
PLANE
0.25 (0.010)
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MC74HC161A, MC74HC163A
Notes
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MC74HC161A, MC74HC163A
Notes
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MC74HC161A, MC74HC163A
Semiconductor trademarks Semiconductor Components Industries, (SCILLC). SCILLC reserves right make changes without further notice products herein. SCILLC makes warranty, representation guarantee regarding suitability products particular purpose, does SCILLC assume liability arising application product circuit, specifically disclaims liability, including without limitation special, consequential incidental damages. "Typical" parameters which provided SCILLC data sheets and/or specifications vary different applications actual performance vary over time. operating parameters, including "Typicals" must validated each customer application customer's technical experts. SCILLC does convey license under patent rights rights others. SCILLC products designed, intended, authorized components systems intended surgical implant into body, other applications intended support sustain life, other application which failure SCILLC product could create situation where personal injury death occur. Should Buyer purchase SCILLC products such unintended unauthorized application, Buyer shall indemnify hold SCILLC officers, employees, subsidiaries, affiliates, distributors harmless against claims, costs, damages, expenses, reasonable attorney fees arising directly indirectly, claim personal injury death associated with such unintended unauthorized use, even such claim alleges that SCILLC negligent regarding design manufacture part. SCILLC Equal Opportunity/Affirmative Action Employer.
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MC74HC161A/D
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