EDE1144 Description
.. EDE1144 Keypad Encoder IC 4 x 4 Matrix Keypad Encoder IC EDE1144 RS-232 Output 1 0=2400, 1=9600 Baud 2 Connect to +5V 3 Connect to +5V 4 Digital Ground 5 Row 0 Output 6 Row 1 Output 7 Row 2 Output 8 Row 3 Output 9 XMIT Baud +5V +5V GND R0 R1 R2 R3 Beep.
EDE1144 Key Features
- Multiplexed Keypad Row 0, Host System Data Input 0 (R1) Row 1 / Data 1 Output (Pin 7)
- Multiplexed Keypad Row 1, Host System Data Input 1 (R2) Row 2 / Data 2 Output (Pin 8)
- Multiplexed Keypad Row 2, Host System Data Input 2 (R3) Row 3 / Data 3 Output (Pin 9)
- Multiplexed Keypad Row 3, Host System Data Input 3 (C0) Column 0 Input (Pin 10)
- Multiplexed Keypad Column 0 (through 330 resistor) (C1) Column 1 Input (Pin 11)
- Multiplexed Keypad Column 1 (through 330 resistor) (C2) Column 2 Input (Pin 12)
- Multiplexed Keypad Column 2 (through 330 resis