SNLS285H April 2008 – May 2016 LMH0303
PRODUCTION DATA.
| PIN | TYPE(1) | DESCRIPTION | |
|---|---|---|---|
| NO. | NAME | ||
| 1 | SDI | I | Serial data true input. |
| 2 | SDI | I | Serial data complement input. |
| 3 | VEE | I | Negative power supply (ground) |
| 4 | RREF | I | Bias resistor. Connect a 750-Ω resistor to VCC. |
| 5 | RSTI | I | Reset input. RSTI has an internal pullup, LVCMOS, 2-state logic. H = Normal operation. L = Device reset. The device operates with default register settings. Forcing RSTI low also forces RSTO low. |
| 6 | ENABLE | I | Output driver enable, LVCMOS, 2-state logic. ENABLE has an internal pullup. H = Normal operation. L = Output driver powered off. |
| 7 | SDA | I/O | SMBus bidirectional data pin, LVCMOS, 2-state logic, open drain. When functioning as an output, it is open drain. This pin requires an external pullup. |
| 8 | SCL | I | SMBus clock input, LVCMOS, 2-state logic, open drain. SCL is input only. This pin requires an external pullup. |
| 9 | VCC | P | Positive power supply (3.3 V) |
| 10 | SD/HD | I | Output slew rate control, LVCMOS, 2-state logic. SD/HD has an internal pulldown. H = Output rise or fall time complies with ST 259. L = Output rise or fall time complies with ST 424 or 292. |
| 11 | SDO | O | Serial data complement output. |
| 12 | SDO | O | Serial data true output. |
| 13 | FAULT | O | Fault open drain output flag, LVCMOS, 2-state logic, open drain. Requires external pullup resistor and may be wire ORed with multiple cable drivers. H = Normal operation. L = Loss of signal or termination fault for any output. |
| 14 | NC | — | No connect. Not bonded internally. |
| 15 | NC | — | No connect. Not bonded internally. |
| 16 | RSTO | O | Reset output, LVCMOS, 2-state logic. RSTO is automatically set to 1 when register 0 is written. It can be reset back to zero by forcing RSTI to zero to reset the device. Used to daisy chain multiple cable drivers on the same SMBus. |
| — | EP | G | EP is the exposed pad at the bottom of the WQFN package. The exposed pad must be connected to the ground plane through a via array. |