Latch ICs

A latch IC is a board mounting integrated circuit that is part of the Standard Logic IC family. A latch IC is a bistable multivibrator which has two (Stable) states and a feedback path allowing the device to store information. A Latch IC is an asynchronous device meaning the outputs can change state as soon as the inputs do.RS Components offer an extensive range of Latch IC's from leading manufacturers including Microchip, Nexperia and ON Semiconductor.

What are the different types of Latch IC's?

There are four main types of Latch IC's, SR Latch (Set-Reset) D-Latch (Data) T (toggle) and J-K. Latch IC’S has two inputs and one output. The inputs are referred to as the SET input the RESET input. The main differences between devices are the number and types of inputs they have and how they function and change state.

Environment

The CMOS circuitry used in Integrated circuits from the 4000 series logic IC families means the components are particularly sensitive to static. It is very important to remember that touching a pin while charged with static electricity can damage the IC. Always leave your components in their anti-static protective packaging until they are ready to be used.

Applications

Latch IC's are used in a wide range of electronic applications. Some of the most common are

  • Digital data storage
  • Buffer storage, data transfer and holding registers
  • Memory addressing

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Description Price Logic Family Latch Mode Latching Element Number of Bits Number of Elements per Chip Number of Channels per Chip Output Type Polarity Mounting Type Package Type Pin Count Set/Reset Dimensions Height
RS Stock No. 166-1328
Mfr. Part No.74HC373D,652
BrandNexperia
SGD0.469
Each (In a Tube of 38)
units
HC Transparent D Type 8bit - - 3 State Non-Inverting Surface Mount SOIC 20 - 13 x 7.6 x 2.45mm 2.45mm
RS Stock No. 144-9982
Mfr. Part No.SN74HC563N
SGD1.943
Each (In a Tube of 20)
units
HC Transparent D Type 8bit - - 3 State Inverting Through Hole PDIP 20 - 24.33 x 6.35 x 4.57mm 4.57mm
RS Stock No. 144-9951
Mfr. Part No.CD74HC573E
SGD1.05
Each (In a Tube of 20)
units
HC Transparent D Type 8bit - - 3 State Non-Inverting Through Hole PDIP 20 - 24.33 x 6.35 x 4.57mm 4.57mm
RS Stock No. 177-0888
Mfr. Part No.MIC59P50YWM
BrandMicrochip
SGD9.955
Each (In a Pack of 2)
units
CMOS Transparent SR Type 8 22 1 Open Collector Non-Inverting Surface Mount SOIC 24 Yes 15.42 x 7.52 x 2.26mm 2.26mm
RS Stock No. 806-2236
Mfr. Part No.MC74AC573DWG
SGD0.894
Each (In a Pack of 25)
units
AC Transparent D Type 8bit - - 3 State Inverting Surface Mount SOIC 20 - 12.95 x 7.6 x 2.4mm 2.4mm
RS Stock No. 663-1837
Mfr. Part No.SN74F373DW
SGD1.566
Each (In a Pack of 5)
units
F Transparent D Type 8bit - - 3 State Non-Inverting Surface Mount SOIC 20 - 12.8 x 7.52 x 2.35mm 2.35mm
RS Stock No. 806-3163
Mfr. Part No.MC14042BDG
SGD0.788
Each (In a Pack of 25)
units
4000 Transparent D Type 4bit - - CMOS Inverting, Non-Inverting Surface Mount SOIC 16 - 10 x 4 x 1.5mm 1.5mm
RS Stock No. 181-7361
Mfr. Part No.74HCT259D,653
BrandNexperia
SGD0.267
Each (On a Reel of 2500)
units
74HCT Addressable D Type 8 8 8 Single Ended Non-Inverting Surface Mount SO 16 Yes 10 x 4 x 1.45mm 1.45mm
RS Stock No. 171-3552
Mfr. Part No.74LCX573FT
BrandToshiba
SGD0.455
Each (In a Pack of 20)
units
74LCX Transparent D Type 8bit 19 8 CMOS Inverting Surface Mount TSSOP 20 - 6.5 x 4.4 x 1mm 1mm
RS Stock No. 169-5687
Mfr. Part No.SN74LS373DWR
SGD0.576
Each (On a Reel of 2000)
units
LS Transparent D Type 8bit - - 3 State Non-Inverting Surface Mount SOIC 20 - 12.8 x 7.52 x 2.35mm 2.35mm
RS Stock No. 634-237
Mfr. Part No.CD74HCT373E
SGD1.43
Each
units
HCT Transparent D Type 8bit - - 3 State Non-Inverting Through Hole PDIP 20 - 24.33 x 6.35 x 4.57mm 4.57mm
RS Stock No. 145-0009
Mfr. Part No.CD4042BE
SGD0.623
Each (In a Tube of 25)
units
4000 Transparent D Type 4bit - - - Inverting, Non-Inverting Through Hole PDIP 16 - 19.3 x 6.35 x 4.57mm 4.57mm
RS Stock No. 166-1276
Mfr. Part No.74HC573PW,112
BrandNexperia
SGD0.522
Each (In a Tube of 75)
units
HC Transparent D Type 8bit - - 3 State Non-Inverting Surface Mount TSSOP 20 - 6.6 x 4.5 x 0.95mm 0.95mm
RS Stock No. 182-1946
Mfr. Part No.74AHC573PW,118
BrandNexperia
SGD0.552
Each (In a Pack of 50)
units
- - - - - - - - - - - - - -
RS Stock No. 806-3273
Mfr. Part No.MC14515BDWR2G
SGD2.98
Each (In a Pack of 10)
units
4000 Transparent SR Type 4bit - - 3 State Inverting Surface Mount SOIC 24 - 15.54 x 7.6 x 2.36mm 2.36mm
RS Stock No. 438-3927
Mfr. Part No.TPIC6259N
SGD5.40
Each (In a Tube of 20)
units
- Addressable D Type 8bit - - Open Drain Inverting Through Hole PDIP 20 Yes 24.33 x 6.35 x 4.57mm 4.57mm
RS Stock No. 171-3368
Mfr. Part No.74VHCT573AFT
BrandToshiba
SGD0.172
Each (On a Reel of 2500)
units
74VHC Transparent D Type 8bit 19 8 - Inverting Surface Mount TSSOP 20 - 6.5 x 4.4 x 1mm 1mm
RS Stock No. 184-4259
Mfr. Part No.MC14536BDWG
SGD1.25
Each (In a Tube of 47)
units
- - Decoder 4 - - Pulse - Surface Mount SOIC 16 Yes 10.45 x 7.6 x 2.4mm 2.4mm
RS Stock No. 662-7796
Mfr. Part No.SN74AHC573DBR
SGD0.69
Each (In a Pack of 10)
units
AHC Transparent D Type 8bit - - 3 State Non-Inverting Surface Mount SSOP 20 - 7.2 x 5.3 x 1.95mm 1.95mm
RS Stock No. 922-2842
Mfr. Part No.SN74LVC16373DGGR
SGD0.857
Each (On a Reel of 2000)
units
LVC Transparent D Type 16bit - - 3 State Non-Inverting Surface Mount TSSOP 48 - 12.5 x 6.1 x 1.15mm 1.15mm