*2.4.1 7 segment display with counter, d flip flops, & 555 timer

Waiting for data

Signal	Value
Signal	Value

Cursor 1	Cursor 2	∆X	1/∆X	∆Y	∆Y (Phase)

Out of date
V	—
V	—
V_PP	—
V_RMS	—
V_AV	—
f_V	—
I	—
I	—
I_PP	—
I_RMS	—
I_AV	—
f_I	—
D	—

Out of date
V	—
V	—
V_PP	—
V_RMS	—
V_AV	—
f_V	—
I	—
I	—
I_PP	—
I_RMS	—
I_AV	—
f_I	—
D	—

Out of date
V	—
V	—
V_PP	—
V_RMS	—
V_AV	—
f_V	—
I	—
I	—
I_PP	—
I_RMS	—
I_AV	—
f_I	—
D	—

Out of date
V	—
V	—
V_PP	—
V_RMS	—
V_AV	—
f_V	—
I	—
I	—
I_PP	—
I_RMS	—
I_AV	—
f_I	—
D	—

ID:

x10

x0.1

Sheet:1

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SPICE

SPICE Netlist

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** 2.4.1 7 segment display with counter, d flip flops, & 555 timer **
*
* Multisim Live SPICE netlist
*
*

* --- Circuit Topology ---

* Component: A1
xA1 0 11 13 3 12 11 10 3 IDEAL_TIMER_A1

* Component: C1
cC1 11 0 0.000047

* Component: C2
cC2 12 0 1e-8

* Component: DG1
aDG1 8 Digital_Source_DG1

* Component: R1
rR1 10 11 330 VIRTUAL_RESISTANCE_R1

* Component: R2
rR2 3 10 330 VIRTUAL_RESISTANCE_R2

* Component: R3
rR3 19 22 220 VIRTUAL_RESISTANCE_R3

* Component: R4
rR4 18 23 220 VIRTUAL_RESISTANCE_R4

* Component: R5
rR5 17 24 220 VIRTUAL_RESISTANCE_R5

* Component: R6
rR6 16 25 220 VIRTUAL_RESISTANCE_R6

* Component: R7
rR7 15 26 220 VIRTUAL_RESISTANCE_R7

* Component: R8
rR8 14 27 220 VIRTUAL_RESISTANCE_R8

* Component: R9
rR9 20 21 220 VIRTUAL_RESISTANCE_R9

* Component: U1
xU1 7 bridgeU1!CLK bridgeU1!SET bridgeU1!RESET 1 7 Digital_DFlipFlop_U1 PARAMS: Negative_Edge_Clock=0 Negative_SET_RESET=0 Rise_delay=1e-9 Fall_delay=1e-9 Clk_delay=1e-9 Set_delay=1e-9 Reset_delay=1e-9 Ic=0

xbridgeU1!CLK bridgeU1!CLK 13 REAL_CUSTOM_ADC PARAMS: lowV=0 maxLowV=0.8 unknownV=1 minHighV=2 highV=5 riseT=0 fallT=0

xbridgeU1!SET bridgeU1!SET 0 REAL_CUSTOM_ADC PARAMS: lowV=0 maxLowV=0.8 unknownV=1 minHighV=2 highV=5 riseT=0 fallT=0

xbridgeU1!RESET bridgeU1!RESET 0 REAL_CUSTOM_ADC PARAMS: lowV=0 maxLowV=0.8 unknownV=1 minHighV=2 highV=5 riseT=0 fallT=0

* Component: U2
xU2 4 7 bridgeU2!SET bridgeU2!RESET 2 4 Digital_DFlipFlop_U2 PARAMS: Negative_Edge_Clock=0 Negative_SET_RESET=0 Rise_delay=1e-9 Fall_delay=1e-9 Clk_delay=1e-9 Set_delay=1e-9 Reset_delay=1e-9 Ic=0

xbridgeU2!SET bridgeU2!SET 0 REAL_CUSTOM_ADC PARAMS: lowV=0 maxLowV=0.8 unknownV=1 minHighV=2 highV=5 riseT=0 fallT=0

xbridgeU2!RESET bridgeU2!RESET 0 REAL_CUSTOM_ADC PARAMS: lowV=0 maxLowV=0.8 unknownV=1 minHighV=2 highV=5 riseT=0 fallT=0

* Component: U3
xU3 5 4 bridgeU3!SET bridgeU3!RESET 6 5 Digital_DFlipFlop_U3 PARAMS: Negative_Edge_Clock=0 Negative_SET_RESET=0 Rise_delay=1e-9 Fall_delay=1e-9 Clk_delay=1e-9 Set_delay=1e-9 Reset_delay=1e-9 Ic=0

xbridgeU3!SET bridgeU3!SET 0 REAL_CUSTOM_ADC PARAMS: lowV=0 maxLowV=0.8 unknownV=1 minHighV=2 highV=5 riseT=0 fallT=0

xbridgeU3!RESET bridgeU3!RESET 0 REAL_CUSTOM_ADC PARAMS: lowV=0 maxLowV=0.8 unknownV=1 minHighV=2 highV=5 riseT=0 fallT=0

* Component: U5
xU5 1 2 6 bridgeU5!D 8 8 8 bridgeU5!OA bridgeU5!OD bridgeU5!OE bridgeU5!OF bridgeU5!OC bridgeU5!OB bridgeU5!OG 74LS48_U5 PARAMS: Rise_delay=1e-7 Fall_delay=1e-7

xbridgeU5!D bridgeU5!D 0 REAL_CUSTOM_ADC PARAMS: lowV=0 maxLowV=0.8 unknownV=1 minHighV=2 highV=5 riseT=0 fallT=0

xbridgeU5!OA bridgeU5!OA 20 REAL_CUSTOM_DAC PARAMS: lowV=0 maxLowV=0.8 unknownV=1 minHighV=2 highV=5 riseT=0 fallT=0

xbridgeU5!OD bridgeU5!OD 17 REAL_CUSTOM_DAC PARAMS: lowV=0 maxLowV=0.8 unknownV=1 minHighV=2 highV=5 riseT=0 fallT=0

xbridgeU5!OE bridgeU5!OE 16 REAL_CUSTOM_DAC PARAMS: lowV=0 maxLowV=0.8 unknownV=1 minHighV=2 highV=5 riseT=0 fallT=0

xbridgeU5!OF bridgeU5!OF 15 REAL_CUSTOM_DAC PARAMS: lowV=0 maxLowV=0.8 unknownV=1 minHighV=2 highV=5 riseT=0 fallT=0

xbridgeU5!OC bridgeU5!OC 18 REAL_CUSTOM_DAC PARAMS: lowV=0 maxLowV=0.8 unknownV=1 minHighV=2 highV=5 riseT=0 fallT=0

xbridgeU5!OB bridgeU5!OB 19 REAL_CUSTOM_DAC PARAMS: lowV=0 maxLowV=0.8 unknownV=1 minHighV=2 highV=5 riseT=0 fallT=0

xbridgeU5!OG bridgeU5!OG 14 REAL_CUSTOM_DAC PARAMS: lowV=0 maxLowV=0.8 unknownV=1 minHighV=2 highV=5 riseT=0 fallT=0

* Component: U6
xU6 21 22 23 24 25 26 27 0 7_SEGMENT_CC_U6

* Component: V1
vV1 3 0 dc 9 ac 0 0
+ distof1 0 0
+ distof2 0 0

* --- Circuit Models ---

* DG1 model
.model Digital_Source_DG1 d_constsource(State=1)

* R1 model
.model VIRTUAL_RESISTANCE_R1 r( )

* R2 model
.model VIRTUAL_RESISTANCE_R2 r( )

* R3 model
.model VIRTUAL_RESISTANCE_R3 r( )

* R4 model
.model VIRTUAL_RESISTANCE_R4 r( )

* R5 model
.model VIRTUAL_RESISTANCE_R5 r( )

* R6 model
.model VIRTUAL_RESISTANCE_R6 r( )

* R7 model
.model VIRTUAL_RESISTANCE_R7 r( )

* R8 model
.model VIRTUAL_RESISTANCE_R8 r( )

* R9 model
.model VIRTUAL_RESISTANCE_R9 r( )

* --- Subcircuits ---

* A1 subcircuit
.subckt IDEAL_TIMER_A1 0 2 3 4 5 6 7 8
rn1 8 5 5k
rn2 5 51 5k
rn3 51 0 5k
Ecomp1 56x 0 value={if(v(5,6)>0,5,0)}
Ecomp2 52x 0 value={if(v(2,51)>0,5,0)}
**These prevent an unstable condition during DC OP
EskipDC 52 0 value={if(TIME>0, v(52x), 0)}
EskipDC2 56 0 value={if(TIME>0, v(56x), 0)}
.model op limit (gain= 3000,
+ out_upper_limit=5,
+ out_lower_limit=-5,
+ limit_range=1 fraction=true)
aadc1 [56 52] [r s] ADC1
.MODEL ADC1 adc_bridge (in_low= 3.5 in_high = 3.5 rise_delay= 1e-12 fall_delay= 1e-12)
anand1 [r Q2] Q1 nand1
anand2 [s Q1] Q2 nand1
.model nand1 d_nand(rise_delay=1n)
adac1 [q1 q2] [66 62] DAC1
rad3 66 0 1
rad4 62 0 1
aadc4 [4] [40] ADC1
ainv2 40 41 inv1
adlatch q1 2u 41 3d Qb Qc dlt
.model dlt d_dlatch(rise_delay=1e-12)
apu1 2u pullup1
.model pullup1 d_pullup(load=10e-12)
apd1 3d pulldown1
.model pulldown1 d_pulldown(load=10e-12)
ainv1 Qb 31 inv1
.model inv1 d_inverter(rise_delay=1e-12)
adac72 [Qb] [72] DAC1
adac31 [31] [32] DAC1
r30 32 0 1g
b1 3 0 v=(v(32)*v(8)/5)
r3 3 0 1g
.MODEL DAC1 dac_bridge (out_low= 0.0 out_high= 5.0 out_undef=0.5)
rad5 72 0 1meg
mdis 7 72 0 0 mdis
.MODEL mdis nmos (VTO=1.29 PHI=0.4 LAMBDA=5 KP=4.3m LD=12.8u GAMMA =3)
.ends

* U1 subcircuit
.subckt Digital_DFlipFlop_U1 1 2 3 4 5 6 PARAMS: Negative_Edge_Clock=0 Negative_SET_RESET=0 Clk_delay=1n Set_delay=1n Reset_delay=1n Ic=0 Rise_delay=1n Fall_delay=1n
*PIN MAPPING: D Q ~Q RESET CLK SET
* 1 5 6 4 2 3
*MODELS USED
aDG1 neg_SR Digital_SourceSR
aDG2 neg_clk Digital_SourceCLK
Axor1 [3 neg_SR] set xor
Axor2 [2 neg_clk] clk xor
Axor3 [4 neg_SR] reset xor
Ajkff 1 clk set reset 5 6 D_FF

.model Digital_SourceCLK d_constsource(State={Negative_Edge_Clock})
.model Digital_SourceSR d_constsource(State={Negative_SET_RESET})
.model xor d_xor
.MODEL D_FF d_dff (clk_delay={Clk_delay} set_delay={Set_delay} reset_delay={Reset_delay} ic={Ic} rise_delay={Rise_delay} fall_delay={Fall_delay})
.ENDS

* U2 subcircuit
.subckt Digital_DFlipFlop_U2 1 2 3 4 5 6 PARAMS: Negative_Edge_Clock=0 Negative_SET_RESET=0 Clk_delay=1n Set_delay=1n Reset_delay=1n Ic=0 Rise_delay=1n Fall_delay=1n
*PIN MAPPING: D Q ~Q RESET CLK SET
* 1 5 6 4 2 3
*MODELS USED
aDG1 neg_SR Digital_SourceSR
aDG2 neg_clk Digital_SourceCLK
Axor1 [3 neg_SR] set xor
Axor2 [2 neg_clk] clk xor
Axor3 [4 neg_SR] reset xor
Ajkff 1 clk set reset 5 6 D_FF

.model Digital_SourceCLK d_constsource(State={Negative_Edge_Clock})
.model Digital_SourceSR d_constsource(State={Negative_SET_RESET})
.model xor d_xor
.MODEL D_FF d_dff (clk_delay={Clk_delay} set_delay={Set_delay} reset_delay={Reset_delay} ic={Ic} rise_delay={Rise_delay} fall_delay={Fall_delay})
.ENDS

* U3 subcircuit
.subckt Digital_DFlipFlop_U3 1 2 3 4 5 6 PARAMS: Negative_Edge_Clock=0 Negative_SET_RESET=0 Clk_delay=1n Set_delay=1n Reset_delay=1n Ic=0 Rise_delay=1n Fall_delay=1n
*PIN MAPPING: D Q ~Q RESET CLK SET
* 1 5 6 4 2 3
*MODELS USED
aDG1 neg_SR Digital_SourceSR
aDG2 neg_clk Digital_SourceCLK
Axor1 [3 neg_SR] set xor
Axor2 [2 neg_clk] clk xor
Axor3 [4 neg_SR] reset xor
Ajkff 1 clk set reset 5 6 D_FF

.model Digital_SourceCLK d_constsource(State={Negative_Edge_Clock})
.model Digital_SourceSR d_constsource(State={Negative_SET_RESET})
.model xor d_xor
.MODEL D_FF d_dff (clk_delay={Clk_delay} set_delay={Set_delay} reset_delay={Reset_delay} ic={Ic} rise_delay={Rise_delay} fall_delay={Fall_delay})
.ENDS

* U5 subcircuit
**********************
*74LS48 DECODER/DRIVER BCD-7 SEGMENT WITH
*2k PULL-UPS OUTPUTS
***
.subckt 74LS48_U5 ina inb inc ind ltb rbib bib/rbob a d e f c b g PARAMS: Rise_delay=100n Fall_delay=100n
*FAMILY TTLin TTLin TTLin TTLin TTLin TTLin TTLin
*TTLout TTLout TTLout TTLout TTLout TTLout TTLout
*pinout N 7 1 2 6 13 10 9 15 11 12 14 3 5 4:VCC=16 GND=8
*pinout J 7 1 2 6 13 10 9 15 11 12 14 3 5 4:VCC=16 GND=8
*pinout D 7 1 2 6 13 10 9 15 11 12 14 3 5 4:VCC=16 GND=8

ainv1 rbib rbi inv

ananda1 [ina ltb] a1 nand
anandb1 [inb ltb] b1 nand
anandc1 [inc ltb] c1 nand
anandd1 [ind ind] d1 nand

ananda2 [a1 bib/rbob] a2 nand
anandb2 [b1 bib/rbob] b2 nand
anandc2 [c1 bib/rbob] c2 nand
anandd2 [d1 bib/rbob] d2 nand

anand6 [ltb rbi d1 c1 b1 a1] nandopenc nand

aopenc1 nandopenc bib/rbob open_c

aand1a [b2 d2] x1 and
aand2a [a1 c2] x2 and
aand3a [a2 b1 c1 d1] x3 and
aor1 [x1 x2 x3] ai or

aand1b [b2 d2] x4 and
aand2b [a2 b1 c2] x5 and
aand3b [a1 b2 c2] x6 and
aor2 [x4 x5 x6] bi or

aand1c [c2 d2] x7 and
aand2c [a1 b2 c1] x8 and
aor3 [x7 x8] ci or

aand1d [a2 b1 c1] x9 and
aand2d [a1 b1 c2] xa and
aand3d [a2 b2 c2] xb and
aor4 [x9 xa xb] di or

aand1e [b1 c2] xc and
aor5 [xc a2] ei or

aand1f [a2 b2] xd and
aand2f [b2 c1] xe and
aand3f [a2 c1 d1] xf and
aor6 [xd xe xf] fi or

aand1g [a2 b2 c2] xg and
aand2g [b1 c1 d1 ltb] xh and
aor7 [xg xh] gi or

ah h high

aand1 [ai h] a nand
aand2 [bi h] b nand
aand3 [ci h] c nand
aand4 [di h] d nand
aand5 [ei h] e nand
aand6 [fi h] f nand
aand7 [gi h] g nand

.model inv d_inverter
.model nand d_nand
.model or d_or(rise_delay={Rise_delay} fall_delay={Fall_delay})
.model and d_and
.model open_c d_open_c
.model high d_pullup(load=2k)

.ends

* U6 subcircuit
.subckt 7_SEGMENT_CC_U6 A1 A2 A3 A4 A5 A6 A7 K

dd1 A1 0vNode1 ledDiodeModel
Vsense1 0vNode1 K DC 0
* Interactive sense node
b1 lit1 0 v = { if (i(Vsense1) < 0, 0, if( i(Vsense1) > 0.02, 1, { i(Vsense1) / 0.02 })) }

dd2 A2 0vNode2 ledDiodeModel
Vsense2 0vNode2 K DC 0
* Interactive sense node
b2 lit2 0 v = { if (i(Vsense2) < 0, 0, if( i(Vsense2) > 0.02, 1, { i(Vsense2) / 0.02 })) }

dd3 A3 0vNode3 ledDiodeModel
Vsense3 0vNode3 K DC 0
* Interactive sense node
b3 lit3 0 v = { if (i(Vsense3) < 0, 0, if( i(Vsense3) > 0.02, 1, { i(Vsense3) / 0.02 })) }

dd4 A4 0vNode4 ledDiodeModel
Vsense4 0vNode4 K DC 0
* Interactive sense node
b4 lit4 0 v = { if (i(Vsense4) < 0, 0, if( i(Vsense4) > 0.02, 1, { i(Vsense4) / 0.02 })) }

dd5 A5 0vNode5 ledDiodeModel
Vsense5 0vNode5 K DC 0
* Interactive sense node
b5 lit5 0 v = { if (i(Vsense5) < 0, 0, if( i(Vsense5) > 0.02, 1, { i(Vsense5) / 0.02 })) }

dd6 A6 0vNode6 ledDiodeModel
Vsense6 0vNode6 K DC 0
* Interactive sense node
b6 lit6 0 v = { if (i(Vsense6) < 0, 0, if( i(Vsense6) > 0.02, 1, { i(Vsense6) / 0.02 })) }

dd7 A7 0vNode7 ledDiodeModel
Vsense7 0vNode7 K DC 0
* Interactive sense node
b7 lit7 0 v = { if (i(Vsense7) < 0, 0, if( i(Vsense7) > 0.02, 1, { i(Vsense7) / 0.02 })) }

.model ledDiodeModel D( IS=1e-14 N=1 RS=0 IBV=1e-10 BV=1e+30 CJO=0 M=0.5 VJ=1 )
.ends

* --- Pin bridge models

.SUBCKT REAL_CUSTOM_ADC 1 2 PARAMS: lowV=0 maxLowV=0.8 unknownV=1.0 minHighV=2.0 highV=5.0 riseT=0 fallT=0
* Ideal Receiver Model 1 = input, 2 = A/D out
aADCin1 [2] [1] ADC
.MODEL ADC adc_bridge (in_low = {maxLowV} in_high = {minHighV})
.ENDS

.SUBCKT REAL_CUSTOM_DAC 1 2 PARAMS: lowV=0 maxLowV=0.8 unknownV=1.0 minHighV=2.0 highV=5.0 riseT=0 fallT=0
* Ideal Driver Model 1 = A/D out, 2 = input
aDACin1 [1] [2] aDAC
.MODEL aDAC dac_bridge (out_low = {lowV} out_high = {highV} out_undef = {unknownV} t_rise = {max(riseT,1e-9)} t_fall = {max(fallT,1e-9)})
.ENDS

Errors and Warnings

Any error, warning or information messages appear below.

Item

Document

Section

Only one section is available for multisection components.

Type

Rise time

Time it takes for signal to transition from low to high.

With non-zero rise time, the signal converts to an analog signal from a digital signal.

Fall time

Time it takes for signal to transition from high to low.

With non-zero fall time, the signal converts to an analog signal from a digital signal.

Use document settings

Use logic levels settings from Document tab.

Threshold voltage levels.

Threshold voltage values used in the logic evaluation. See Digital Simulation for more information.

Output low

Output low voltage.

Maximum output voltage level to produce a low signal.

Input low threshold

Input low threshold voltage.

Maximum input voltage level for the signal to be considered low.

Input high threshold

Input high threshold voltage.

Minimum input voltage level for the signal to be considered high.

Output high

Output high voltage.

Minimum output voltage level to produce a high signal.

Type Probe

Select desired function.

Function

Use document settings

Use logic levels settings from Document tab.

Threshold voltage levels.

Threshold voltage values used in the logic evaluation. See Digital Simulation for more information.

Output low

Output low voltage.

Maximum output voltage level to produce a low signal.

Input low threshold

Input low threshold voltage.

Maximum input voltage level for the signal to be considered low.

Input high threshold

Input high threshold voltage.

Minimum input voltage level for the signal to be considered high.

Output high

Output high voltage.

Minimum output voltage level to produce a high signal.

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Available functions, constants and operators for the expression.

Source

Data origin.

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Web address of the selected Source.

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Connect

Cancel

Connecting

Disconnect

Switch on to stream data from Source when simulation runs.

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Source type

Application used to generate the Source data.

Data type

Type of simulation data in Source.

File size

Size of the referenced file. Total file size for all data plotters cannot exceed 100 MB.

Selected simulation type does not match uploaded simulation data

Data streaming is only available in interactive simulation

Instantaneous

Displays instantaneous measurements on probe during interactive simulation.

Periodic

Displays periodic measurements on probe during Interactive simulation.

Bias point(s)

Displays bias points on probe for DC Op simulation.

No items selected.

Name 2.4.1 7 segment display with counter, d flip flops, & 555 timer

Type Schematic

The simulation to run. See Simulation types for more information.

Name

Title of graph. Edit as desired.

End time

Time at which the simulation stops. Does not include pauses. Simulation does not occur in real time.

Start simulation

RELTOL

Relative error tolerance. A simulation wide accuracy control used to establish convergence.

VNTOL

Absolute voltage error tolerance. Defines the minimum value for voltage where it may still be considered accurate.

ABSTOL

Absolute current error tolerance. Defines the minimum value for current where it may still be considered accurate.

ITL1

DC iteration limit. Number of iterative passes done on DC circuit equations in attempt to reach convergence in simulation.

ITL4

Upper iteration limit. Number of iterative passes done per time point, on Transient circuit equations in attempt to reach convergence in simulation.

Integration method. The numerical integration method used in transient analysis.

Temp

℃

Operating temperature. The temperature at which the entire circuit will be simulated.

Insert shunt resistance

Inserts a resistance of RSHUNT from every analog node to ground. Will aid in convergence, but alter the behavior of the circuit.

RSHUNT

Shunt resistance. This eliminates singular matrix errors that result from a lack of a DC path to ground.

Reset to default

Threshold voltage levels.

Threshold voltage values used in the logic evaluation. See Digital Simulation for more information.

Output low

Output low voltage.

Maximum output voltage level to produce a low signal.

Input low threshold

Input low threshold voltage.

Maximum input voltage level for the signal to be considered low.

Input high threshold

Input high threshold voltage.

Minimum input voltage level for the signal to be considered high.

Output high

Output high voltage.

Minimum output voltage level to produce a high signal.

Width

Sheet width in grid squares.

Height

Sheet height in grid squares.

Grid

Toggles grid display.

Net Labels

Toggles all net labels.

Component Labels

Toggles all component labels.

2.4.1 7 segment display with counter, d flip flops, & 555 timer