Renesas Electronics 49FCT series fanout buffer (distribution), 49FCT3805QGI, 1:5 input:output ratio, 2 circuits, 3V to 3.6V supply, CMOS/LVTTL I/O, -40°C to 85°C, 20-SSOP package.
| Parameter | Value |
|---|---|
| Type | Fanout Buffer (Distribution) |
| Series | 49FCT |
| Mounting type | Surface Mount |
| Voltage | 3V ~ 3.6V |
| Operating temperature | -40°C ~ 85°C |
| Input | CMOS, LVTTL |
| Output | CMOS, LVTTL |
| Package | Tube |
| Case | 20-SSOP (0.154\", 3.90mm Width) |
| Number of circuits | 2 |
| Ratio - Input:Output | 1:5 |
| Differential - Input:Output | No/No |
The 49FCT3805QGI is a Renesas 49FCT-series fanout buffer with two independent 1:5 distribution circuits, each splitting one input into five copies.
The 20-SSOP (0.154" body width, 3.90 mm) and the equivalent 20-QSOP supplier package share the same footprint — a design laid out for one accepts the other without a board spin.
Both input and output are CMOS and LVTTL compatible, and the device is non-differential — it does not accept or produce PECL, LVPECL, or LVDS levels. The 1:5 fanout per circuit works with single-ended clock sources.
The 49FCT3805PYGI is a peer in the same 49FCT3805 family with identical supply voltage, circuit count, I/O type, and temperature range. The difference is the package — the QGI suffix denotes a 20-SSOP/QSOP, while the PYGI suffix is a different package variant. Confirm the board footprint matches before substituting.