5V-only 16-bit bus transceiver — what the supply range means
The CY74FCT16652CTPVC is a Cypress 74FCT-series 16-bit bus transceiver built for 5V nominal systems. It integrates two 8-bit elements with non-inverting data paths and 3-state outputs, letting you multiplex bidirectional data on a shared bus. The supply voltage range of 4.5V to 5.5V means this part runs from a standard 5V rail only — it is not 3.3V-compatible on the supply or the I/O. If your board has mixed 3.3V and 5V domains, you will need level translation on the bus lines.
Output drive and bus loading
The rated output current of 32mA high, 64mA low gives this transceiver enough fan-out to drive a heavily loaded backplane or memory bus without external buffers. The asymmetric drive (stronger low-side) is typical for 5V logic families and matches the input thresholds of most 5V TTL-compatible devices.
Package and footprint
Housed in a 56-lead SSOP (0.295-inch body width, 7.50mm), the part uses a fine-pitch surface-mount footprint common to wide-word bus transceivers. The 56-SSOP matches the JEDEC MO-118 variation; verify the land pattern against your PCB layout tools, as the 0.65mm pitch leaves little room for hand rework. The part ships in Tube, not tape-and-reel, so factor in tube-to-reel transfer if your pick-and-place line expects reels.
Lifecycle and compliance
The 74FCT series has broad second-source coverage; if you need a dual-source hedge, the SN74ABT2245DW from TI is a functional equivalent in a single 8-bit element, though it is not a pin-for-pin replacement (different package and element count).