16-bit bus transceiver in a 48-SSOP — what the dual drive rating means for your bus
The SN74LVT162245ADL: It packs two 8-bit elements with independent direction and output-enable controls, and its 3-state outputs let multiple drivers share the same bus without contention — standard for memory-mapped I/O, backplane, or processor-to-peripheral links in industrial and telecom boards. The output drive is where this part stands out: one element delivers 12 mA source and 12 mA sink, while the other handles 32 mA source and 64 mA sink. That asymmetry matters when one bank drives a lightly loaded control bus and the other must sink the higher current of a data bus with multiple fan-out or long trace capacitance — the 64 mA low-side is the one you budget for worst-case pull-down.
Package and mounting — 48-BSSOP (7.50 mm width) surface-mount
Housed in a 48-BSSOP (0.295", 7.50 mm width) — also listed as the supplier device package 48-SSOP — this is a surface-mount part with a fine-pitch body. The 7.50 mm width is the wider SOIC variant, not the narrow 5.3 mm SSOP; board layout must match the 7.50 mm footprint. No exposed pad, so thermal management relies on the package body and PCB copper — not an issue at these drive levels, but worth noting if the board sees sustained 64 mA per output on multiple channels.
Active lifecycle and compliance
ROHS3 compliant, so no exemption paperwork needed for EU or similar markets.