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MH32S72BBFA-6 Datasheet(PDF) 4 Page - Mitsubishi Electric Semiconductor |
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MH32S72BBFA-6 Datasheet(HTML) 4 Page - Mitsubishi Electric Semiconductor |
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4 / 56 page  MITSUBISHI ELECTRIC 2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM MH32S72BBFA -6 MITSUBISHI LSIs 16/Jun. /1999 MIT-DS-333-0.1 PIN FUNCTION Input Master Clock:All other inputs are referenced to the rising edge of CK CKE0 Input Clock Enable:CKE controls internal clock.When CKE is low,internal clock for the following cycle is ceased. CKE is also used to select auto / self refresh. After self refresh mode is started, CKE E becomes asynchronous input.Self refresh is maintained as long as CKE is low. /S0 - 3 Input Chip Select: When /S is high,any command means No Operation. /RAS,/CAS,/W Input Combination of /RAS,/CAS,/W defines basic commands. A0-11 Input A0-11 specify the Row/Column Address in conjunction with BA.The Row Address is specified by A0-11.The Column Address is specified by A0-9.A10 is also used to indicate precharge option.When A10 is high at a read / write command, an auto precharge is performed. When A10 is high at a precharge command, both banks are precharged. BA0-1 Input Bank Address:BA0,1 is not simply BA.BA0,1 specifies the bank to which a command is applied.BA must be set with ACT,PRE,READ,WRITE commands DQ0-63 CB0-7 Input/Output Data In and Data out are referenced to the ris ing edge of CK DQM0-7 Input Din Mask/Output Disable:When DQMB is high in burst write.Din for the current cycle is masked.When DQMB is high in burst read,Dout is disabled at the next but one cycle. Vdd,Vss Power Supply Power Supply for the memory mounted module. CK0 REGE Output Register enable:When REGE is low,All control signals and address are buffered. (Buffer mode) When REGE is high,All control and address are latched. (Latch mode) 4 |
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