UPD75028CWA

The UPD75028CWA is one of the NEC CMOS 4-bit single chip microcomputer 75X series which enables data processing matching an 8-bit microcomputer.It is a powerful and high cost performance product which contains high function such as A/D converter and serial bus interface(SBI) adopting the NEC standard format in addition to high-speed operatin(minimum instruction execution time by CPU:0.95us).

Features of the UPD75028CWA are:(1)high reliability as compared with UPD75028;(2)fast execution time(@4.19MHz):high speed cycle..0.95us,low voltage cycles..1.91us and 15.3us;(3)power-reducing operation:with system clock operating at 32.768 kHz(execution time:122us);(4)A/D converter:8-channel,8-bit;(5)low-voltage operation possible(VDD=2.7 to 6.0V);(6)four timers:one of them can be used as PWM output,16-bit counter for an intergrating A/D converter,etc;(7)NEC standard serial bus interface:SBI mode;(8)very low-power clock operation:5uA typ.(at 3V in HALT mode);(9)43 I/O lines:with mask-option or software-selectable pull-up/pull-down resistors;(10)OTP version:UPD75p036(VDD=2.7 to 6.0V).

The absolute maximum ratings of the UPD75028CWA can be summarized as:(1)power supply voltage,VDD:-0.3V to +7.0V;(2)input voltage:VI1..0.3V to VDD+0.3V(except for port4.5.10)VI2,pull-up resistor is contained is -0.3V to VDD+0.3V,open drain is -0.3V to +11V(port 4.5.10);(3)output voltage,VO:-0.3V to VDD+0.3V;(4)output high current,IOH:per pin..-10mAtotal,all outputs..-30mA;(5)output low current,IOL(NOTE):port0.3.4.5 per pin,peak value..30mA,rms value..15mAexcept for port0.3.4.5 per pin,peak value..20mA,rms value..5mAport0.3 to 9.11 total,peak value..170mA,rms value..120mAport0.2.10 total,peak value..30mA,rms value..20mA;(6)operation temperature,Topt:-40 to +85;(7)storage temperature,Tstg:-65 to +150.NOTE:TO obtain the rms value,calculate

If you want to know more information such as the electrical characteristics about the UPD75028CWA, please download the datasheet in www.seekic.com or www.chinaicmart.com .