(China (Mainland))
Product Summary
The M37267M8-220SP is a single-chip microcomputer designed with CMOS silicon gate technology. It is housed in a 52-pin shrink plastic molded DIP. In addition to their simple instruction sets, the ROM, RAM and I/O addresses are placed on the same memory map to enable easy programming. The M37267M8-220SP is mainly used in TV which included a closed caption decoder.
Parametrics
M37267M8-220SP absolute maxing ratings: (1)On the conditions of all voltages are based on VSS, output transistors are cut off, VCC, AVCC power source voltage VCC, AVCC: -0.3 to 6V; (2)On the conditions of all voltages are based on VSS, output transistors are cut off, V1 input voltage CNCSS: -0.3 to 6V; (3)On the conditions of all voltages are based on VSS, VO output voltage PO0-PO2, PO4-PO7: -0.3 to 13V; (4)IOH circuit current R, G, B, OUT1, OUT2, PO3, P15-P17, P20-P27, P30, P31: 0 to 1mA; (5)IOL1 circuit current R, G, B, OUT1, OUT2, PO3, P15-P17, P20-P27, SOUT, SCLK, P31: 0 to 2mA; (6)IOL2 circuit current P11-P14: 0 to 6mA; (7)IOL3 circuit current PO0-PO2, PO4-PO7: 0 to 1mA.
Features
M37267M8-220SP features: (1)Number of basic instructions: 71; (2)The minimum instruction execution time: 0.5μs(at 8MHz oscillation frequency); (3)Power source voltage: 5V±10%; (4)Subroutine nesting: 96 levels(maximum); (5)Interrupts: 16 types, 15 vectors; (6)8-bit timers: 6; (7)Programmable I/O ports(ports P0, P1, P2, P30, P31): 26; (8)Input ports(ports P40-P46, P63, P64): 9; (9)Output ports(Ports P52-P55): 4; (10)12V withstand ports: 7; (11)LED drive ports: 2.
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