Description
E1.
E8 Row Inputs (Pins 1, 2, 10, 11, 14, 15, 16, 17)
Under idle conditions, these inputs are held high by internal pull.
up resistors..
Features
- is its low power consumption (in the order of 10 µA in the idle state). For this reason, the battery is perpetually in circuit. It has in fact been found that a light discharge current is beneficial to battery life. In its active state, the transmitter efficiency is increased by the use of a low duty cycle which is less than 2.5% for the modulating pulse trains. While no key is pressed, the circuit is in its idle state and the reference oscillator is stopped. Also, the eight address input lines.
