This page documents the connectors used by third-party data, charging, and synchronisation cables for the Nokia 5110 and 6110 mobile phones. The pin layout is specific to this handset family and its connector form factor. Only the pins utilised by the cable or internal interface are listed below.
| Pin | Signal Description |
|---|---|
| 1 | VIN CHARGER INPUT VOLTAGE 8.4V 0.8A |
| 2 | CHRG CTRL CHARGER CONTROL PWM 32Khz |
| 3 | XMIC MIC INPUT 60mV - 1V |
| 4 | SGND SIGNAL GROUND |
| 5 | XEAR EAR OUTPUT 80mV - 1V |
| 6 | MBUS 9600 B/S |
| 7 | FBUS_RX 9.6 - 230.4 KB/S |
| 8 | FBUS_TX 9.6 - 230.4 KB/S |
| 9 | L_GND CHARGER / LOGIC GND |
Display Connector
| Pin | Signal |
|---|---|
| 1 | LCDRSTX - Reset (2,8V) |
| 2 | VOUT - DC/DC voltage converter output (0V) |
| 3 | UDGND - Gnd (0V) |
| 4 | OSC - External clock (2,8V) |
| 5 | LCDCSX - Chip select input (2,8V) |
| 6 | LCDCDX - Control/display data flag input (2,8V) |
| 7 | SDA - Serial data input (0V) |
| 8 | SCLK - Serial clock input (0V) |
| 9 | VL - Supply voltage (2,8V) |
| Pin | Signal |
|---|---|
| 1 | ROW0 - Keyboard matrix row 0 |
| 2 | ROW1 - Keyboard matrix row 1 |
| 3 | ROW2 - Keyboard matrix row 2 |
| 4 | ROW3 - Keyboard matrix row 3 |
| 5 | ROW4 - Keyboard matrix row 4 |
| 6 | COL0 - keyboard matrix column 0 (flip identification) |
| 7 | COL1 - keyboard matrix column 1 |
| 8 | COL2 - keyboard matrix column 2 |
| 9 | COL3 - keyboard matrix column 3 |
| 10 | COL4 - keyboard matrix column 4 |
| 11 | Signal1 - flip interrupt (not used) |
| 12 | VF |
| 13 | VF |
| 14 | VBATT - Battery Voltage |
| 15 | UAGND - Analog Gnd |
| 16 | PWRON - Power On key |
| 17 | LCDCDX - LCD driver code/data selection |
| 18 | SCLK - LCD driver serial clock |
| 19 | SDA - LCD driver serial data |
| 20 | LCDCSX - LCD driver chip select |
| 21 | LCDRSTX - LCD driver reset |
| 22 | UDGND - Digital Gnd |
| 23 | BUZZER - Buzzer PWM control |
| 24 | VL - Supply voltage |
| 25 | SPARE - Call indicator LED |
| 26 | LIGHT - Illumination control |
| 27 | EARN - Speaker neutral |
| 28 | EARP - Speaker positive |
Battery Contacts
| Pin | Signal |
|---|---|
| 1 | VBATT (+) |
| 2 | BSI (Battery Type / Capacity) |
| 3 | BTemp (Temperature) |
| 4 | Gnd (-) |
Notes
Pin numbers refer to the connector on the handset; pins not listed are unused by the cable.
References
- Nokia 5110 Service Manual (NSE-1) — System Module / System Connector — Nokia Corporation.