NJU6355 New Japan Radio, NJU6355 Datasheet
NJU6355
Available stocks
Related parts for NJU6355
NJU6355 Summary of contents
Page 1
... GENERAL DESCRIPTION The NJU6355 series is a serial I/O real time clock suitable for 4 bits microprocessor. It contains quartz crystal oscillator, counter, shift register, voltage regulator, voltage detector and interface controller. The NJU6355 series required only 4-port of microprocessor for data transfer, and the microprocessor can receive the data at any time when the microprocessor requires ...
Page 2
... FUNCTIONAL DESCRIPTION 1. Timer Data Structure The NJU6355 using BCD code which consisting of 4 bits per 1 digit. The calender function including the last date of each month and the leap year calculation is executed automatically. The unused bit for the timer data is “0”. ...
Page 3
... The timer data is transferred to the shift register at rising edge of the CE (1) and LSB of the timer data is output to the DATA terminal. timer data in the shift register shift by synchronized at falling edge of the CLK(2) then output to the DATA terminal time-to-time. NJU6355 Hour Minute Second ...
Page 4
... H 5. Data Access The NJU6355 series can operate from 2.0V to 5.5V. However not allow the data access out of the range of 5V±10%. It may be broken the data unless 5V±10%. Thus, when the data access, the CE terminal should be "H" after the power supply rise to 5V±10%, then start the operation ...
Page 5
... I/O, CE, CLK, DATA IH V I/O, CE, CLK, DATA IL V DATA (I =-0.4mA DATA (I =1.0mA SYMBOL CONDITIONS t CWH t CWL WDS t WDH t RDD t RF NJU6355 (Ta=25 C) UNIT =2.0V, Ta= MIN TYP MAX 3.0 4.0 1.1 1.7 (V =5.0V±10%, Ta= MIN TYP MAX 4.5 5 -2.0 2.0 -1.0 1 ...
Page 6
... (in) t WDS CLK 80% Input Data 20% APPLICATION CIRCUIT Main Power Supply - 6 - CLK I/O DH (out CLK 80% 20% Vss t WDH Vss NJU6355 CWL CWH 50% 50% 20% t RDD 80% Output Data 20 DATA I/O CPU CLK CE ...