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Elektronika MK-52: The MK-61 big brother?
11-16-2014, 09:15 AM
Post: #11
RE: Elektronika MK-52: The MK-61 big brother?
(10-27-2014 06:06 PM)jebem Wrote:  [/b]D1: К745ИК1302-2 (K745IK1302-2) - Control Unit for Processor, Display and Keyboard;
D2: К745ИК1303-2 (K745IK1303-2) - Arithmetic Processor;
D3: К745ИР2-2 (K745IR2-2) - Memory Registers;
D4: К745ИР2-2 (K745IR2-2) - Memory Registers;
D5: К745ГФ3-2 (K745GF3-2) - Clock Generator.
D6: К745ИК1306-2 (K745IK1306-2) - Additional MK-61 Processor features not present on the B3-34
D7: К745ИК1801-2 (K745IK1801-1) - RAM memory System bus I/O.
D8: КР1601РР1 (KP1601RR1) - EEPROM 1024 x 4 (Eq. to ER2401)
D9: К561ЛА7 (K561LA7) - 4x2 input NAND (like CD4011AE)

I have a little notes for ICs:
K745IK130x are same CPU with different firmware.
K745 is a package-less version of K145 ICs
K745IK1302 is a main CPU (control processor). It organized initialization of serial data ring, keyboard and display controller and perform some operations.
K745ИК1801 is a external I/O controller (Internal EEPROM and External ROM module in MK-52)
K745ИР2 both serial RAM registers.
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RE: Elektronika MK-52: The MK-61 big brother? - Sergei Frolov - 11-16-2014 09:15 AM

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