64 Mbit parallel NOR Flash — GL-S family
The Infineon S29GL064S70TFI020 is a 64 Mbit parallel NOR Flash memory from the GL-S series, organized as 8M x 8 or 4M x 16 bits.
70 ns access — bus timing headroom
The 70 ns access time is the ceiling for random read cycles. For 8/16-bit microcontrollers running at 40 MHz or below, this part reads without wait states on most asynchronous memory controllers.
Flexible organization — 8-bit or 16-bit bus
The memory array is configurable as 8M x 8 (byte mode) or 4M x 16 (word mode), selected by the BYTE# pin. This lets the same PCB footprint serve both an 8-bit bootloader and a 16-bit application bus without a second component. The write cycle time per word or page is 60 ns, which governs program operations.
Infineon lists the S29GL064S70TFI020 as Active. The GL-S series is a mature, widely socketed family; Infineon typically gives long EOL notice windows when transitions do occur.
Package and handling — 56-pin TSOP, tray
Housed in a 56-pin TSOP (thin small-outline package) with a surface-mount footprint, this part is a standard pick-and-place candidate. It ships in trays, not tape-and-reel — factor that into your kitting line if your feeder setup expects embossed tape. The TSOP body is moisture-sensitive; store the reels dry if you break the seal before reflow.