Overview
The 71421LA55PF8 is a SRAM made by Renesas Electronics in a 64-TQFP (14x14) package with 5 pins.
PCBKit's library has its footprint (Package_QFP:TQFP-64_14x14mm_P0.8mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C20471416).
Symbol
The library has no symbol for this part yet.
Footprint
Parts like it
8
71321LA25PFGI
TQFP-64(14x14)-40℃~+85℃ 16Kbit 220mA 25ns 4.5V~5.5V Parallel Port (Parallel) TQFP-64(14x14) SRAM ROHSRenesas ElectronicsSRAMCY7C006A-20AXC
TQFP-64(14x14)0℃~+70℃ 128Kbit 180mA 20ns 4.5V~5.5V 50uA Auto power-down function Parallel Port (Parallel) TQFP-64(14x14) SRAM ROHSInfineon TechnologiesSRAM7005L15PFG
TQFP-64(14x14)0℃~+70℃ 4.5V~5.5V 64Kbit TQFP-64(14x14) SRAM ROHSRenesas ElectronicsSRAM7005L15PFG8
TQFP-64(14x14)0℃~+70℃ 15ns 4.5V~5.5V 64Kbit Parallel Port (Parallel) TQFP-64(14x14) SRAM ROHSRenesas ElectronicsSRAM7005L20PFGI
TQFP-64(14x14)-40℃~+85℃ 20ns 4.5V~5.5V 64Kbit Parallel Port (Parallel) TQFP-64(14x14) SRAM ROHSRenesas ElectronicsSRAM7005L20PFGI8
TQFP-64(14x14)-40℃~+85℃ 20ns 4.5V~5.5V 64Kbit Parallel Port (Parallel) TQFP-64(14x14) SRAM ROHSRenesas ElectronicsSRAM7005S35PFG
TQFP-64(14x14)0℃~+70℃ 35ns 4.5V~5.5V 64Kbit Parallel Port (Parallel) TQFP-64(14x14) SRAM ROHSRenesas ElectronicsSRAM7005S35PFG8
TQFP-64(14x14)0℃~+70℃ 35ns 4.5V~5.5V 64Kbit Parallel Port (Parallel) TQFP-64(14x14) SRAM ROHSRenesas ElectronicsSRAM
Questions
Is there a KiCad symbol and footprint for the 71421LA55PF8?
Yes. the footprint Package_QFP:TQFP-64_14x14mm_P0.8mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the 71421LA55PF8?
64-TQFP (14x14), with 5 pins. Its footprint is drawn on this page.
Where can I order the 71421LA55PF8?
JLCPCB lists it as part C20471416, with 0 in stock; the sellers' links on this page open their listings.
What can replace the 71421LA55PF8?
Parts like it in the library: the 71321LA25PFGI by Renesas Electronics, the CY7C006A-20AXC by Infineon Technologies, the 7005L15PFG by Renesas Electronics and the 7005L15PFG8 by Renesas Electronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.