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M5M5V108CFP-70H Datasheet(PDF) 2 Page - Mitsubishi Electric Semiconductor |
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M5M5V108CFP-70H Datasheet(HTML) 2 Page - Mitsubishi Electric Semiconductor |
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2 / 7 page  MITSUBISHI LSIs M5M5V108CFP,VP,RV,KV,KR -70H, -10H, -70X, -10X 1048576-BIT(131072-WORD BY 8-BIT)CMOS STATIC RAM MITSUBISHI ELECTRIC FUNCTION BLOCK DIAGRAM The operation mode of the M5M5V108C series are determined by a combination of the device control inputs S1,S2,W and OE. Each mode is summarized in the function table. A write cycle is executed whenever the low level W overlaps with the low level S 1 and the high level S2. The address must be set up before the write cycle and must be stable during the entire cycle. The data is latched into a cell on the trailing edge of W,S1 or S2, whichever occurs first,requiring the set-up and hold time relative to these edge to be maintained. The output enable input OE directly controls the output stage. Setting the OE at a high level, the output stage is in a high-impedance state, and the data bus contention problem in the write cycle is eliminated. A read cycle is executed by setting W at a high level and OE at a low level while S1 and S2 are in an active state(S1=L,S2=H). When setting S1 at a high level or S2 at a low level, the chip are in a non-selectable mode in which both reading and writing are disabled. In this mode, the output stage is in a high- impedance state, allowing OR-tie with other chips and memory expansion by S1 and S2. The power supply current is reduced as low as the stand-by current which is specified as ICC3 or ICC4, and the memory data can be held at +2V power supply, enabling battery back-up operation during power failure or power-down operation in the non- selected mode. S1 S2 W OE Mode DQ ICC L L H H H H L H Non selection Write Read High-impedance Din Dout Active Stand-by Non selection High-impedance High-impedance Active Active Stand-by FUNCTION TABLE L H L X H X X X X L X X 2 CLOCK GENERATOR 131072 WORDS X 8 BITS ( 512 ROWS X128 COLUMNS X 16BLOCKS ) 8 7 6 5 4 3 2 31 28 16 15 14 13 12 11 10 7 4 12 11 10 9 20 19 18 17 27 26 25 3 2 1 21 22 23 25 26 27 28 29 13 14 15 17 18 19 20 21 5 30 6 32 8 29 22 30 24 32 16 24 A4 A5 A6 A7 A12 A14 A16 A15 A13 A0 A1 A2 A3 A8 A9 A11 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 W S1 S2 OE VCC GND (0V) * Pin numbers inside dotted line show those of TSOP * * DATA INPUTS/ OUTPUTS WRITE CONTROL INPUT CHIP SELECT INPUTS OUTPUT ENABLE INPUT ADDRESS INPUTS 23 31 A10 |
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Similar Description - M5M5V108CFP-70H |
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