FIFO Memory Chips

FIFO memory are integrated circuits (ICs) that buffers and stores data. All memory chips have input and outputs. FIFO chips store this data in a memory stack with a "First-In First-Out" style. This means that the data that is stored first is removed first. FIFO depth is the term given to the amount of memory that can be stored.


FIFO memory is used for buffering applications or when data needs to be stored temporarily. This is ideal for high speed communications which could lose data.


FIFO inputs and outputs can be unidirectional or bidirectional. This will depend on the device. They can also feature programmable flags.


Things to consider when choosing FIFO memory:


  • Density

  • Memory Size

  • Bits per word

  • Supply voltage

  • Operating temperature

  • Package Type

  • Mounting Type

FIFO memory chips come in a standard semiconductor package, such as an LQFP, PLCC or SOIC.


Where is FIFO used?


  • Cameras

  • Multimedia

  • TVs

  • Computers

  • Disk Controllers

  • Communications

  • Networking

What is synchronous FIFO?


A synchronous FIFO is where the reading and writing function is carried out by the same clock. Therefore an asynchronous FIFO uses different clocks for reading and writing.

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Description Price Memory Size Organisation Data Bus Width Bus Directional Access Time Configuration Clock Frequency Mounting Type Package Type Pin Count Expansion Support Dimensions Length Width
RS Stock No. 714-4898
Mfr. Part No.IDT7202LA12SOG
BrandIDT
£5.70
Each
Units
9kbit 1K x 9 bit 9bit Bi-Directional - Dual - Surface Mount SOIC 28 Yes 17.9 x 8.4 x 2.62mm 17.9mm 8.4mm
RS Stock No. 170-2089
Mfr. Part No.IDT7202LA15JGI
BrandIDT
£5.664
Each (In a Tube of 32)
Units
9kbit 1K x 9 bit 9bit Bi-Directional - Dual - Surface Mount PLCC 32 Yes 13.97 x 11.43 x 2.79mm 13.97mm 11.43mm
RS Stock No. 714-4905
Mfr. Part No.IDT7202LA15JGI
BrandIDT
£7.57
Each
Units
9kbit 1K x 9 bit 9bit Bi-Directional - Dual - Surface Mount PLCC 32 Yes 13.97 x 11.43 x 2.79mm 13.97mm 11.43mm
RS Stock No. 714-4867
Mfr. Part No.IDT7200L15SOGI
BrandIDT
£7.44
Each
Units
2kbit 256 x 9 bit 9bit Bi-Directional - Dual - Surface Mount SOIC 28 Yes 17.9 x 8.4 x 2.62mm 17.9mm 8.4mm
RS Stock No. 662-5374
Mfr. Part No.SN74V293-6PZA
£33.35
Each
Units
1125kbit 128K x 9 bit, 64K x 18 bit 9/18bit Uni-Directional 2 ns Dual 166MHz Surface Mount LQFP 80 Yes 14 x 14 x 1.4mm 14mm 14mm
RS Stock No. 162-7076
Mfr. Part No.SN74V293-6PZA
£29.305
Each (In a Tray of 90)
Units
1125kbit 128K x 9 bit, 64K x 18 bit 9/18bit Uni-Directional 2 ns Dual 166MHz Surface Mount LQFP 80 Yes 14 x 14 x 1.4mm 14mm 14mm
RS Stock No. 714-4927
Mfr. Part No.IDT7204L15SOGI
BrandIDT
£3.84
Each
Units
36kbit 4K x 9 bit 9bit Bi-Directional - Dual - Surface Mount SOIC 28 Yes 17.9 x 8.4 x 2.62mm 17.9mm 8.4mm
RS Stock No. 170-2096
Mfr. Part No.IDT7204L15SOGI
BrandIDT
£3.073
Each (In a Tube of 26)
Units
36kbit 4K x 9 bit 9bit Bi-Directional - Dual - Surface Mount SOIC 28 Yes 17.9 x 8.4 x 2.62mm 17.9mm 8.4mm
RS Stock No. 714-4946
Mfr. Part No.IDT72V04L25JGI
BrandIDT
£11.96
Each
Units
36kbit 4K x 9 bit 9bit Bi-Directional - Dual - Surface Mount PLCC 32 Yes 13.97 x 11.43 x 2.79mm 13.97mm 11.43mm
RS Stock No. 170-2098
Mfr. Part No.IDT72V04L25JGI
BrandIDT
£9.543
Each (In a Tube of 27)
Units
36kbit 4K x 9 bit 9bit Bi-Directional - Dual - Surface Mount PLCC 32 Yes 13.97 x 11.43 x 2.79mm 13.97mm 11.43mm
RS Stock No. 170-2092
Mfr. Part No.IDT7203L15TPGI
BrandIDT
£7.573
Each (In a Tube of 14)
Units
18kbit 2K x 9 bit 9bit Bi-Directional - Dual - Through Hole PDIP 28 Yes 34.3 x 7.62 x 3.3mm 34.3mm 7.62mm
RS Stock No. 714-4914
Mfr. Part No.IDT7203L15TPGI
BrandIDT
£9.45
Each
Units
18kbit 2K x 9 bit 9bit Bi-Directional - Dual - Through Hole PDIP 28 Yes 34.3 x 7.62 x 3.3mm 34.3mm 7.62mm
RS Stock No. 714-4920
Mfr. Part No.IDT7204L12JG
BrandIDT
£11.77
Each
Units
36kbit 4K x 9 bit 9bit Bi-Directional - Dual - Surface Mount PLCC 32 Yes 13.97 x 11.43 x 2.79mm 13.97mm 11.43mm
RS Stock No. 170-2095
Mfr. Part No.IDT7204L12JG
BrandIDT
£9.518
Each (In a Tube of 32)
Units
36kbit 4K x 9 bit 9bit Bi-Directional - Dual - Surface Mount PLCC 32 Yes 13.97 x 11.43 x 2.79mm 13.97mm 11.43mm
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