EM78P154N

The EM78P154N is an 8-bit microprocessor designed and developed with low-power, high-speed CMOS technology. It is equipped with 1K*13-bits electrical one time programmable read only memory. The feature of EM78P154N are as follows: (1)operating voltage range: 2.1V~5.5V at 0~70,  2.3V~5.5V at 40~85; (2)operting frequency range(crystal mode): DC~20MHz at 5.0V, DC~8MHz at 3.0V, DC~4MHz at 2.1V; (3)IRC mode: all these four main frequencies can trimmed by programming with four calibrated bits in the ICE 159N simulator. OTP is auto trimmed by DWTR.; (4)fast set-up time only requires about 2ms in high XTAL and 32CLKS in IRC mode from wake up to operating mode.

The absolute maximum ratings of the EM78P154N are: (1)temperature under bias: -40 to 85; (2)storage temperature: -65 to 150; (3)work storage: 2.1 to 5.5V; (4)working frequency: DC to 20MHz*; (5)input voltage: Vss-0.3 to Vdd+0.5V; (6)output voltage: Vss-0.3 to Vdd+0.5V.

The following is about the electrical characteristics of EM78P154N: (1)input leakage current for input pins: ±1 A max at VIN = VDD, VSS; (2)input high voltage: 0.75Vdd V min and Vdd+0.3 V max at ports5, 6; (3)input low voltage: Vdd-0.3 V min and 0.25Vdd V max at ports5, 6; (4)input high threshold voltage: 0.75Vdd V min and Vdd+0.3 V max at reset, TCC; (5)input high threshold voltage: Vdd-0.3 V min and 0.25Vdd V max at reset, TCC; (6)clock input high voltage: 0.75Vdd V min and Vdd+0.3 V max at OSCI; (7)clock input low voltage: Vdd-0.3 V min and 0.25Vdd V max at OSCI.