EDE1144, EDE1144_E Datasheet - E-Lab

EDE1144 - Keypad Encoder IC

www.DataSheet4U.com 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 Valid OSC1 OSC2 +5V C3 C2 C1 C0 18 Beeper Output 17 Data Valid Output 16 Oscillator Conection 15 Oscillator Connection 14 Connect to +5V 13 Column 3 Input 12 Column 2 Input 11 Column 1 Input 10 Column 0 Input Functionality &

EDE1144 Features

* such as contact debouncing and key auto-repeat in an easy-to-use package that will lower software overhead in the host microcontroller and reduce the I/O pin requirements from eight to one, frequently resulting in the use of a less costly host microcontroller in your design. In addition, the EDE1144

EDE1144_E-Lab.pdf