View source for 74x00

{{Infobox
|name=74x00
|title=74x00 Logic Gate
|above=Quad 2-Input [[NAND gate]]
|image=[[File:PDIP14.jpg|200px]]
|caption
| header1 = Attributes
| label2 = Pins
| data2 = 14
| label3 = Inputs
| data3 = 4x 2 bits
| label4 = Outputs
| data4 = 4x 1 bits
| label5 = Mounting Type
| data5 = Through Hole, Surface Mount
| label6 = Packages
| data6 = [[PDIP-14]], [[SSOP-14]], [[SOIC-14]], [[CFP-14]], [[LCCC-20]], [[SO-14]], [[SO-8]]
}}

The '''74x00''' (and its military grade equivalent '''54x00''') is a Quad 2-Input [[NAND gate]] and one of the most important components in digital electronics.

==== Pin Functions ====
{| class="wikitable"
|- 
! colspan="5" | Pin
! rowspan="2" | I/O
! rowspan="2" | Description
|-
! Name 
! CDIP, CFP, SOIC, PDIP, SO, SSOP
! SO
! CFP
! LCCC
|-
| 1A 
| style="text-align:center;" | 1 
| style="text-align:center;" | 1 
| style="text-align:center;" | 1 
| style="text-align:center;" | 2 
| style="text-align:center;" | I 
| Gate 1 input
|-
| 1B 
| style="text-align:center;" | 2 
| style="text-align:center;" | 2 
| style="text-align:center;" | 2 
| style="text-align:center;" | 3 
| style="text-align:center;" | I 
| Gate 1 input
|-
| 1Y 
| style="text-align:center;" | 3 
| style="text-align:center;" | 3 
| style="text-align:center;" | 3 
| style="text-align:center;" | 4 
| style="text-align:center;" | O 
| Gate 1 output
|-
| 2A 
| style="text-align:center;" | 4
| style="text-align:center;" | 6
| style="text-align:center;" | 6
| style="text-align:center;" | 6
| style="text-align:center;" | I
| Gate 2 input
|-
| 2B
| style="text-align:center;" | 5
| style="text-align:center;" | 7
| style="text-align:center;" | 7
| style="text-align:center;" | 8
| style="text-align:center;" | I
| Gate 2 input
|-
| 2Y
| style="text-align:center;" | 6
| style="text-align:center;" | 5
| style="text-align:center;" | 5
| style="text-align:center;" | 9
| style="text-align:center;" | O
| Gate 2 output
|-
| 3A
| style="text-align:center;" | 10
| {{n/a}}
| style="text-align:center;" | 9
| style="text-align:center;" | 13
| style="text-align:center;" | I
| Gate 3 input
|-
| 3B
| style="text-align:center;" | 9
| {{n/a}}
| style="text-align:center;" | 10
| style="text-align:center;" | 14
| style="text-align:center;" | I
| Gate 3 input
|-
| 3Y
| style="text-align:center;" | 8
| {{n/a}}
| style="text-align:center;" | 8
| style="text-align:center;" | 12
| style="text-align:center;" | O
| Gate 3 output
|-
| 4A
| style="text-align:center;" | 13
| {{n/a}}
| style="text-align:center;" | 12
| style="text-align:center;" | 18
| style="text-align:center;" | I
| Gate 4 input
|-
| 4B
| style="text-align:center;" | 12
| {{n/a}}
| style="text-align:center;" | 13
| style="text-align:center;" | 19
| style="text-align:center;" | I
| Gate 4 input
|-
| 4Y
| style="text-align:center;" | 11
| {{n/a}}
| style="text-align:center;" | 14
| style="text-align:center;" | 16
| style="text-align:center;" | O
| Gate 4 output
|-
| GND
| style="text-align:center;" | 7
| style="text-align:center;" | 4
| style="text-align:center;" | 11
| style="text-align:center;" | 10
| {{n/a}}
| Ground
|-
| NC
| {{n/a}}
| {{n/a}}
| {{n/a}}
| style="text-align:center;" | 1, 5, 7, 11, 15, 17
| {{n/a}}
| No connect
|-
| V{{sub|CC}}
| style="text-align:center;" | 14
| style="text-align:center;" | 8
| style="text-align:center;" | 4
| style="text-align:center;" | 20
| {{n/a}}
| Power supply
|}

== Variant Specifications ==

=== AC (Advanced [[CMOS]]) ===
{| class="wikitable"
|+ Absolute Maximum Ratings
|-
! colspan="3" |
! Min
! Max
! Unit
|-
| V{{sub|CC}}
| colspan="2" | Supply voltage
| style="text-align: right" | -0.5
| style="text-align: right" | 7
| V
|-
| I{{sub|IK}}
| Input current clamp
| V{{sub|I}} < 0 V or V{{sub|I}} > V{{sub|CC}}
| colspan="2" style="text-align: right" | &plusmn;20
| mA
|-
| I{{sub|OK}}
| Output current clamp
| V{{sub|O}} < 0 V or V{{sub|O}} > V{{sub|CC}}
| colspan="2" style="text-align: right" | &plusmn;20
| mA
|-
| I{{sub|O}}
| Continuous output current
| V{{sub|O}} < 0 V or V{{sub|O}} > V{{sub|CC}}
| colspan="2" style="text-align: right" | &plusmn;50
| mA
|-
|
| colspan="2" | Continuous current through V{{sub|CC}} or GND
| colspan="2" style="text-align: right" | &plusmn;200
| mA
|}

{| class="wikitable"
|+ Recommended Operating Conditions
|-
! rowspan="2" colspan="3" |
! colspan="2" | 54AC00
! colspan="2" | 74AC00
! rowspan="2" | Unit
|-
! Min
! Max
! Min
! Max
|-
| V{{sub|CC}}
| colspan="2" | Supply voltage
| style="text-align: right" | 2
| style="text-align: right" | 6
| style="text-align: right" | 2
| style="text-align: right" | 6
| V
|-
| rowspan="3" | V{{sub|IH}}
| rowspan="3" | High-level input voltage
| V{{sub|CC}} = 3 V
| style="text-align: right" | 2.1
|
| style="text-align: right" | 2.1
|
| rowspan="3" | V
|-
| V{{sub|CC}} = 4.5 V
| style="text-align: right" | 3.15
|
| style="text-align: right" | 1.15
|
|-
| V{{sub|CC}} = 5.5 V
| style="text-align: right" | 3.85
|
| style="text-align: right" | 1.85
|
|-
| rowspan="3" | V{{sub|IL}}
| rowspan="3" | Low-level input voltage
| V{{sub|CC}} = 3 V
|
| style="text-align: right" | 0.9
|
| style="text-align: right" | 0.9
| rowspan="3" | V
|-
| V{{sub|CC}} = 4.5 V
|
| style="text-align: right" | 1.35
|
| style="text-align: right" | 1.35
|-
| V{{sub|CC}} = 5.5 V
|
| style="text-align: right" | 1.65
|
| style="text-align: right" | 1.65
|-
| V{{sub|I}}
| colspan="2" | Input voltage
| style="text-align: right" | 0
| style="text-align: right" | V{{sub|CC}}
| style="text-align: right" | 0
| style="text-align: right" | V{{sub|CC}}
| V
|-
| V{{sub|O}}
| colspan="2" | Output voltage
| style="text-align: right" | 0
| style="text-align: right" | V{{sub|CC}}
| style="text-align: right" | 0
| style="text-align: right" | V{{sub|CC}}
| V
|-
| rowspan="3" | I{{sub|OH}}
| rowspan="3" | High-level output current
| V{{sub|CC}} = 3 V
|
| style="text-align: right" | -12
|
| style="text-align: right" | -12
| rowspan="3" | mA
|-
| V{{sub|CC}} = 4.5 V
|
| style="text-align: right" | -24
|
| style="text-align: right" | -24
|-
| V{{sub|CC}} = 5.5 V
|
| style="text-align: right" | -24
|
| style="text-align: right" | -24
|-
| rowspan="3" | I{{sub|OL}}
| rowspan="3" | Low-level output current
| V{{sub|CC}} = 3 V
|
| style="text-align: right" | 12
|
| style="text-align: right" | 12
| rowspan="3" | mA
|-
| V{{sub|CC}} = 4.5 V
|
| style="text-align: right" | 24
|
| style="text-align: right" | 24
|-
| V{{sub|CC}} = 5.5 V
|
| style="text-align: right" | 24
|
| style="text-align: right" | 24
|-
| &Delta;t/&Delta;v
| colspan="2" | Input transition rise or fall rate
| colspan="2" style="text-align: right" | 8
| colspan="2" style="text-align: right" | 8
| ns/V
|-
| T{{sub|A}}
| colspan="2" | Operating free-air temperature
| style="text-align: right" | -55
| style="text-align: right: | 125
| style="text-align: right" | -40
| style="text-align: right" | 85
| &deg;C
|}

=== AHC (Advanced high-speed CMOS) ===

=== AHCT (Advanced high-speed CMOS [[Schottky transistor|schottky]]) ===

=== ALS (Advanced low-power schottky [[TTL]]) ===

=== AS (Advanced schottky TTL) ===

=== HC (High-speed CMOS) ===
{| class="wikitable"
|+ Absolute Maximum Ratings
|-
! colspan="3" |
! Min
! Max
! Unit
|-
| V{{sub|CC}}
| colspan="2" | Supply voltage
| style="text-align: right" | -0.5
| style="text-align: right" | 7
| V
|-
| I{{sub|IK}}
| Input current clamp
| V{{sub|I}} < -0.5 V or V{{sub|I}} > V{{sub|CC}} + 0.5 V
| colspan="2" style="text-align: right" | &plusmn;20
| mA
|-
| I{{sub|OK}}
| Output current clamp
| V{{sub|O}} < -0.5 V or V{{sub|O}} > V{{sub|CC}} + 0.5 V
| colspan="2" style="text-align: right" | &plusmn;20
| mA
|-
| I{{sub|O}}
| Continuous output current
| V{{sub|O}} < -0.5 V or V{{sub|O}} > V{{sub|CC}} + 0.5 V
| colspan="2" style="text-align: right" | &plusmn;25
| mA
|-
|
| colspan="2" | Continuous current through V{{sub|CC}} or GND
| colspan="2" style="text-align: right" | &plusmn;50
| mA
|}

{| class="wikitable"
|+ Recommended Operating Conditions
|-
! colspan="3" |
! Min
! Nom
! Max
! Unit
|-
| V{{sub|CC}}
| colspan="2" | Supply voltage
| style="text-align: right" | 2
| style="text-align: right" | 5
| style="text-align: right" | 6
| V
|-
| rowspan="3" | V{{sub|IH}}
| rowspan="3" | High-level input voltage
| V{{sub|CC}} = 2 V
| style="text-align: right" | 1.5
| colspan="2" |
| rowspan="3" | V
|-
| V{{sub|CC}} = 4.5 V
| style="text-align: right" | 3.15
|-
| V{{sub|CC}} = 6 V
| style="text-align: right" | 4.2
|-
| rowspan="3" | V{{sub|IL}}
| rowspan="3" | Low-level input voltage
| V{{sub|CC}} = 2 V
| colspan="3" style="text-align: right" | 0.5
| rowspan="3" | V
|-
| V{{sub|CC}} = 4.5 V
| colspan="3" style="text-align: right" | 1.35
|-
| V{{sub|CC}} = 6 V
|colspan="3" style="text-align: right" |  1.8
|-
| V{{sub|I}}
| colspan="2" | Input voltage
| style="text-align: right" | 0
| 
| style="text-align: right" | V{{sub|CC}}
| V
|-
| V{{sub|O}}
| colspan="2" | Output voltage
| style="text-align: right" | 0
| 
| style="text-align: right" | V{{sub|CC}}
| V
|-
| rowspan="3" | &Delta;t/&Delta;v
| rowspan="3" colspan="2" | Input transition rise or fall rate
| colspan="3" style="text-align: right" | 500
| rowspan="3" | ns/V
|-
| colspan="3" style="text-align: right" | 111
|-
| colspan="3" style="text-align: right" | 67
|-
| rowspan="2" | T{{sub|A}}
| rowspan="2" | Operating free-air temperature
| 74LS00
| style="text-align: right" | -55
|
| style="text-align: right: | 125
| rowspan="2" | &deg;C
|-
| 54LS00
| style="text-align: right" | 0
| 
| style="text-align: right" | 70
|}

=== HCT (High-speed CMOS, TTL compatible) ===
{| class="wikitable"
|+ Absolute Maximum Ratings
|-
! colspan="3" |
! Min
! Max
! Unit
|-
| V{{sub|CC}}
| colspan="2" | Supply voltage
| style="text-align: right" | -0.5
| style="text-align: right" | 7
| V
|-
| I{{sub|IK}}
| Input current clamp
| V{{sub|I}} < -0.5 V or V{{sub|I}} > V{{sub|CC}} + 0.5 V
| colspan="2" style="text-align: right" | &plusmn;20
| mA
|-
| I{{sub|OK}}
| Output current clamp
| V{{sub|O}} < -0.5 V or V{{sub|O}} > V{{sub|CC}} + 0.5 V
| colspan="2" style="text-align: right" | &plusmn;20
| mA
|-
| I{{sub|O}}
| Continuous output current
| V{{sub|O}} < -0.5 V or V{{sub|O}} > V{{sub|CC}} + 0.5 V
| colspan="2" style="text-align: right" | &plusmn;25
| mA
|-
|
| colspan="2" | Continuous current through V{{sub|CC}} or GND
| colspan="2" style="text-align: right" | &plusmn;50
| mA
|}

{| class="wikitable"
|+ Recommended Operating Conditions
|-
! colspan="3" |
! Min
! Nom
! Max
! Unit
|-
| V{{sub|CC}}
| colspan="2" | Supply voltage
| style="text-align: right" | 4.5
| style="text-align: right" | 
| style="text-align: right" | 5.5
| V
|-
| V{{sub|IH}}
| colspan="2" | High-level input voltage
| style="text-align: right" | 2
| colspan="2" |
| V
|-
| V{{sub|IL}}
| colspan="2" | Low-level input voltage
| colspan="3" style="text-align: right" | 0.8
| V
|-
| V{{sub|I}}
| colspan="2" | Input voltage
| style="text-align: right" | 0
| 
| style="text-align: right" | V{{sub|CC}}
| V
|-
| V{{sub|O}}
| colspan="2" | Output voltage
| style="text-align: right" | 0
| 
| style="text-align: right" | V{{sub|CC}}
| V
|-
| rowspan="2" | T{{sub|A}}
| rowspan="2" | Operating free-air temperature
| 74LS00
| style="text-align: right" | -55
|
| style="text-align: right: | 125
| rowspan="2" | &deg;C
|-
| 54LS00
| style="text-align: right" | 0
| 
| style="text-align: right" | 70
|}

=== LS (High-speed TTL) ===
{| class="wikitable"
|+ Absolute Maximum Ratings
|-
!
! Min
! Max
! Unit
|-
| Supply voltage, V{{sub|CC}}
| colspan="2" style="text-align: right" | 7
| V
|-
| Input voltage
| colspan="2" style="text-align: right" | 7
| V
|}

{| class="wikitable"
|+ Recommended Operating Conditions
|-
! colspan="3" |
! Min
! Nom
! Max
! Unit
|-
| V{{sub|CC}}
| colspan="2" | Supply voltage
| style="text-align: right" | 4.5
| style="text-align: right" | 5
| style="text-align: right" | 5.5
| V
|-
| V{{sub|IH}}
| colspan="2" | High-level input voltage
| style="text-align: right" | 2
| colspan="2" |
| V
|-
| rowspan="2" | V{{sub|IL}}
| rowspan="2" | Low-level input voltage
| 74LS00
| colspan="3" style="text-align: right" | 0.8
| rowspan="2" | V
|-
| 54LS00
| colspan="3" style="text-align: right" | 0.7
|-
| I{{sub|OH}}
| colspan="2" | High-level output current
| colspan="3" style="text-align: right" | -0.7
| mA
|-
| rowspan="2" | I{{sub|OL}}
| rowspan="2" | Low-level output current
| 74LS00
| colspan="3" style="text-align: right" | 8
| rowspan="2" | mA
|-
| 54LS00
| colspan="3" style="text-align: right" | 4
|-
| rowspan="2" | T{{sub|A}}
| rowspan="2" | Operating free-air temperature
| 74LS00
| style="text-align: right" | -55
|
| style="text-align: right: | 125
| rowspan="2" | &deg;C
|-
| 54LS00
| style="text-align: right" | 0
| 
| style="text-align: right" | 70
|}

=== LV (Low voltage TTL) ===

=== F (Very high-speed TTL) ===

=== C (CMOS, [[4000-series integrated circuits|4000-series]] compliant) ===

=== S (Schottky) ===

== See also ==