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. 170-2082
Mfr. Part No.IDT7200L15SOGI
BrandIDT
TWD265.50
Each (In a Tube of 26)
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. 714-4905
Mfr. Part No.IDT7202LA15JGI
BrandIDT
TWD323.00
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. 170-2085
Mfr. Part No.IDT7201LA12TPG
BrandIDT
TWD255.20
Each (In a Tube of 14)
units
4kbit 512 x 9 bit 9bit Bi-Directional - Dual - Through Hole PDIP 28 Yes 36.6 x 15.24 x 3.8mm 36.6mm 15.24mm
RS Stock No. 170-2084
Mfr. Part No.IDT7201LA12PDG
BrandIDT
TWD262.80
Each (In a Tube of 13)
units
4kbit 512 x 9 bit 9bit Bi-Directional - Dual - Through Hole PDIP 28 Yes 36.6 x 15.24 x 3.8mm 36.6mm 15.24mm
RS Stock No. 714-4927
Mfr. Part No.IDT7204L15SOGI
BrandIDT
TWD544.00
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. 170-2089
Mfr. Part No.IDT7202LA15JGI
BrandIDT
TWD289.80
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. 170-2096
Mfr. Part No.IDT7204L15SOGI
BrandIDT
TWD496.50
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. 714-4889
Mfr. Part No.IDT7201LA12TPG
BrandIDT
TWD277.00
Each
units
4kbit 512 x 9 bit 9bit Bi-Directional - Dual - Through Hole PDIP 28 Yes 36.6 x 15.24 x 3.8mm 36.6mm 15.24mm
RS Stock No. 714-4879
Mfr. Part No.IDT7201LA12PDG
BrandIDT
TWD277.00
Each
units
4kbit 512 x 9 bit 9bit Bi-Directional - Dual - Through Hole PDIP 28 Yes 36.6 x 15.24 x 3.8mm 36.6mm 15.24mm
RS Stock No. 714-4911
Mfr. Part No.IDT7203L12TPG
BrandIDT
TWD419.00
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. 714-4914
Mfr. Part No.IDT7203L15TPGI
BrandIDT
TWD419.00
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. 714-4898
Mfr. Part No.IDT7202LA12SOG
BrandIDT
TWD371.00
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. 170-2087
Mfr. Part No.IDT7202LA12SOG
BrandIDT
TWD310.40
Each (In a Tube of 26)
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. 714-4930
Mfr. Part No.IDT7206L15JG
BrandIDT
TWD1,025.00
Each
units
144kbit 16K 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
TWD361.70
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. 170-2095
Mfr. Part No.IDT7204L12JG
BrandIDT
TWD450.40
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
RS Stock No. 170-2098
Mfr. Part No.IDT72V04L25JGI
BrandIDT
TWD457.40
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. 170-2093
Mfr. Part No.IDT7204L12SOG
BrandIDT
TWD552.70
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. 714-4918
Mfr. Part No.IDT7204L12SOG
BrandIDT
TWD626.00
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. 170-2091
Mfr. Part No.IDT7203L12TPG
BrandIDT
TWD361.60
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