EKM6251 Datasheet – RF Mouse Rx Controller IC
U+P RF Mouse Rx Controller
EKM6251 overview
The EKM6251 is an U+P RF Mouse Rx Controller, supplied in these packages: DIP, SOP 16 Pin Type. The absolute maximum ratings table on this page lists the 4 limits from the manufacturer's datasheet that must not be exceeded. This page brings together the EKM6251 pinout and maximum ratings, with the full datasheet PDF to preview below or download.
The eKM6251 is standard RF Mouse Receiver (Rx) Controller for USB and PS/2 compatible interface. It’s receives the RF packet data from RF Rx module (circuits). And decode the RF packet data and transmitting the data to PC by USB or PS/2 interface. The eKM6251 have internal EEPROM to storage the Device ID, do not need the external storage device like 93C46. It’s have built-in RF signal sampling and noise immunity function to improve the RF data decode efficiency.
Datasheet
EKM6251 features
- Operating voltage: 2.5V~5.5V
- Built-in regulator to generate 3.3V
- Operating frequency: 6.00Mhz
- Built-in USB Device Controller and Interface.
- Support USB and PS/2 detect mode and compatible interface.
- Built-in EEPROM to storage 1 byte Device ID (255 sets)
- Built-in RF signal sampling and noise immunity function.
- Support a LED to display RF packet receive status and ID set mode.
- Using jump connect to set Device ID into default ID.
- Support RF monitor pin to check RF packet receive situation.
- To match with RF Mouse Tx controller:EM84100 series EKM6711 : Optical RF Mouse Tx
- EM84100 series
- EKM6711 : Optical RF Mouse Tx
- Package: 16 pin DIP and NSOP (150mil)
- 16 pin DIP and NSOP (150mil)
EKM6251 pinout
| Pin | Name | Description |
|---|---|---|
| 1 | RFC1 | RF module control pin 1 (channel control) |
| 2 | RFC2 | RF module control pin 2 (power down control) |
| 3 | RxLED | Direct sink LED to display RF packet receive. |
| 4 | RFM | RF monitor pin, to check RF packet receive situation. |
| 5 | VSS | Ground |
| 6 | NC | NC |
| 7 | V3.3 | V3.3 DC voltage output from internal regulator |
| 8 | OSCI | 6.00Mhz ceramic resonator crystal input |
| 9 | OSCO | Output terminal for crystal oscillator |
| 10 | VDD | 5.0V Power supply |
| 11 | D-/CLK | USB: D- line PS/2: CLK line (It’s need external USB to PS/2 transfer) |
| 12 | D+/DATA | USB: D+ line PS/2: CLK line (It’s need external USB to PS/2 transfer) |
| 13 | NC | NC |
| 14 | IDR | ID Reset button, its set device ID to default ID (internal pull high resistor) |
| 15 | CONNECT | Connect button, it’s will receive new device ID duration 10 seconds. (internal pull high resistor) |
| 16 | RFD | RF data input |
Absolute maximum ratings
| Parameter | Symbol | Value |
|---|---|---|
| Temperature under bias | TOPR | 0℃~70℃ |
| Storage temperature | TSTR | -65℃~150℃ |
| Input voltage | VIN | -0.3V~+6.0V |
| Output voltage | VO | -0.3V~+6.0V |
EKM6251 applications
- Power Metering
- Energy Monitoring
- Submetering Systems
- USB RF Mouse Rx
- PS/2 RF Mouse Rx
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