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What does the triangle look like in this diagram?

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2

$begingroup$

Using my intuition, I would assume the triangle in this simple circuit to be an inverter, but does that look correct?
What is this symbol?

digital-logic identification schematics diagram

share|improve this question

edited 5 hours ago

Voltage Spike

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ClockwerkSCClockwerkSC

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$endgroup$

• 
  
  
  

  
  11
  

  
  
  
  
  
  

  
  $begingroup$
  It looks like a triangle to answer your title... But you probably mean what it represents.I would say it is a Schmitt trigger inverter.
  $endgroup$
  – Eugene Sh.
  8 hours ago
  
  
  

  
  
  
  

add a comment
 | 

2

$begingroup$

Using my intuition, I would assume the triangle in this simple circuit to be an inverter, but does that look correct?
What is this symbol?

digital-logic identification schematics diagram

share|improve this question

edited 5 hours ago

Voltage Spike

39.4k1212 gold badges4343 silver badges115115 bronze badges

asked 8 hours ago

ClockwerkSCClockwerkSC

2111 bronze badge

$endgroup$

• 
  
  
  

  
  11
  

  
  
  
  
  
  

  
  $begingroup$
  It looks like a triangle to answer your title... But you probably mean what it represents.I would say it is a Schmitt trigger inverter.
  $endgroup$
  – Eugene Sh.
  8 hours ago
  
  
  

  
  
  
  

add a comment
 | 

$begingroup$

Using my intuition, I would assume the triangle in this simple circuit to be an inverter, but does that look correct?
What is this symbol?

digital-logic identification schematics diagram

share|improve this question

edited 5 hours ago

Voltage Spike

39.4k1212 gold badges4343 silver badges115115 bronze badges

asked 8 hours ago

ClockwerkSCClockwerkSC

2111 bronze badge

$endgroup$

share|improve this question

edited 5 hours ago

Voltage Spike

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asked 8 hours ago

ClockwerkSCClockwerkSC

2111 bronze badge

share|improve this question

edited 5 hours ago

Voltage Spike

39.4k1212 gold badges4343 silver badges115115 bronze badges

asked 8 hours ago

ClockwerkSCClockwerkSC

2111 bronze badge

edited 5 hours ago

Voltage Spike

39.4k1212 gold badges4343 silver badges115115 bronze badges

edited 5 hours ago

Voltage Spike

39.4k1212 gold badges4343 silver badges115115 bronze badges

asked 8 hours ago

ClockwerkSCClockwerkSC

2111 bronze badge

asked 8 hours ago

ClockwerkSCClockwerkSC

2111 bronze badge

2 Answers
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4

$begingroup$

It looks like a schmitt trigger inverter like this one (but not this specific one as the pins are different). There should be a Vcc and gnd for this part somewhere else in the schematic.

Source: https://www.jameco.com/Jameco/Products/ProdDS/46640.pdf

share|improve this answer

answered 8 hours ago

Voltage SpikeVoltage Spike

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$endgroup$

add a comment
 | 

3

$begingroup$

It's either a Schmitt-trigger inverter or a Schmitt-trigger buffer. It's unclear to me whether the output has a circle or an arrow on it. The hysteresis diagram implies it's an inverter, but that could be wrong.

Edit: as @duskwuff points out, from a functional point of view, it's undoubtedly an inverter. The pin numbers match the SN74LVC1G14 single gate ST inverter, and other similar single gate parts.

Schmitt-trigger gates have input hysteresis which can help in cleaning up slow or somewhat noisy waveforms. In this particular case it does not seem to be doing much in that regard, but it will not do much harm (it will tend to have the RAM outputs fighting each other for a slightly longer during switch transitions than a regular 74LS04 inverter, probably not a big deal).

share|improve this answer

edited 2 hours ago

answered 6 hours ago

Spehro PefhanySpehro Pefhany

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$endgroup$

• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  $begingroup$
  The presence of the buffer on one RAM enable pin, but not the other, makes me think it's an inverter. It'd be bizarre to use a non-inverting buffer there.
  $endgroup$
  – duskwuff
  6 hours ago
  

  
  
  
  

add a comment
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4

$begingroup$

It looks like a schmitt trigger inverter like this one (but not this specific one as the pins are different). There should be a Vcc and gnd for this part somewhere else in the schematic.

Source: https://www.jameco.com/Jameco/Products/ProdDS/46640.pdf

share|improve this answer

answered 8 hours ago

Voltage SpikeVoltage Spike

39.4k1212 gold badges4343 silver badges115115 bronze badges

$endgroup$

add a comment
 | 

4

$begingroup$

It looks like a schmitt trigger inverter like this one (but not this specific one as the pins are different). There should be a Vcc and gnd for this part somewhere else in the schematic.

Source: https://www.jameco.com/Jameco/Products/ProdDS/46640.pdf

share|improve this answer

answered 8 hours ago

Voltage SpikeVoltage Spike

39.4k1212 gold badges4343 silver badges115115 bronze badges

$endgroup$

add a comment
 | 

$begingroup$

It looks like a schmitt trigger inverter like this one (but not this specific one as the pins are different). There should be a Vcc and gnd for this part somewhere else in the schematic.

Source: https://www.jameco.com/Jameco/Products/ProdDS/46640.pdf

share|improve this answer

answered 8 hours ago

Voltage SpikeVoltage Spike

39.4k1212 gold badges4343 silver badges115115 bronze badges

$endgroup$

share|improve this answer

answered 8 hours ago

Voltage SpikeVoltage Spike

39.4k1212 gold badges4343 silver badges115115 bronze badges

answered 8 hours ago

Voltage SpikeVoltage Spike

39.4k1212 gold badges4343 silver badges115115 bronze badges

answered 8 hours ago

Voltage SpikeVoltage Spike

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3

$begingroup$

It's either a Schmitt-trigger inverter or a Schmitt-trigger buffer. It's unclear to me whether the output has a circle or an arrow on it. The hysteresis diagram implies it's an inverter, but that could be wrong.

Edit: as @duskwuff points out, from a functional point of view, it's undoubtedly an inverter. The pin numbers match the SN74LVC1G14 single gate ST inverter, and other similar single gate parts.

Schmitt-trigger gates have input hysteresis which can help in cleaning up slow or somewhat noisy waveforms. In this particular case it does not seem to be doing much in that regard, but it will not do much harm (it will tend to have the RAM outputs fighting each other for a slightly longer during switch transitions than a regular 74LS04 inverter, probably not a big deal).

share|improve this answer

edited 2 hours ago

answered 6 hours ago

Spehro PefhanySpehro Pefhany

224k55 gold badges178178 silver badges471471 bronze badges

$endgroup$

• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  $begingroup$
  The presence of the buffer on one RAM enable pin, but not the other, makes me think it's an inverter. It'd be bizarre to use a non-inverting buffer there.
  $endgroup$
  – duskwuff
  6 hours ago
  

  
  
  
  

add a comment
 | 

3

$begingroup$

It's either a Schmitt-trigger inverter or a Schmitt-trigger buffer. It's unclear to me whether the output has a circle or an arrow on it. The hysteresis diagram implies it's an inverter, but that could be wrong.

Edit: as @duskwuff points out, from a functional point of view, it's undoubtedly an inverter. The pin numbers match the SN74LVC1G14 single gate ST inverter, and other similar single gate parts.

Schmitt-trigger gates have input hysteresis which can help in cleaning up slow or somewhat noisy waveforms. In this particular case it does not seem to be doing much in that regard, but it will not do much harm (it will tend to have the RAM outputs fighting each other for a slightly longer during switch transitions than a regular 74LS04 inverter, probably not a big deal).

share|improve this answer

edited 2 hours ago

answered 6 hours ago

Spehro PefhanySpehro Pefhany

224k55 gold badges178178 silver badges471471 bronze badges

$endgroup$

• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  $begingroup$
  The presence of the buffer on one RAM enable pin, but not the other, makes me think it's an inverter. It'd be bizarre to use a non-inverting buffer there.
  $endgroup$
  – duskwuff
  6 hours ago
  

  
  
  
  

add a comment
 | 

$begingroup$

It's either a Schmitt-trigger inverter or a Schmitt-trigger buffer. It's unclear to me whether the output has a circle or an arrow on it. The hysteresis diagram implies it's an inverter, but that could be wrong.

Edit: as @duskwuff points out, from a functional point of view, it's undoubtedly an inverter. The pin numbers match the SN74LVC1G14 single gate ST inverter, and other similar single gate parts.

Schmitt-trigger gates have input hysteresis which can help in cleaning up slow or somewhat noisy waveforms. In this particular case it does not seem to be doing much in that regard, but it will not do much harm (it will tend to have the RAM outputs fighting each other for a slightly longer during switch transitions than a regular 74LS04 inverter, probably not a big deal).

share|improve this answer

edited 2 hours ago

answered 6 hours ago

Spehro PefhanySpehro Pefhany

224k55 gold badges178178 silver badges471471 bronze badges

$endgroup$

share|improve this answer

edited 2 hours ago

answered 6 hours ago

Spehro PefhanySpehro Pefhany

224k55 gold badges178178 silver badges471471 bronze badges

answered 6 hours ago

Spehro PefhanySpehro Pefhany

224k55 gold badges178178 silver badges471471 bronze badges

answered 6 hours ago

Spehro PefhanySpehro Pefhany

224k55 gold badges178178 silver badges471471 bronze badges