Datasheet > MSM548333

MSM548333

更新时间： 2022-12-13 04:56:09

品牌	Logo	应用领域
冲电气 - OKI		存储
页数	文件大小	规格书
42页	418K
描述
240,384-Word x 8-bit + 240,384-Word x 4-bit Triple Port type Field Memory

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MSM548333 数据手册

¡ Semiconductor

MSM548333

RCLKY2 : Read Clock for Y2

RCLKY2 is a read control clock input for Y2. (Note that there is RCLKC2 for C2.) Synchronized

with RCLKY2's rising edge, the serial read access from Y2 is executed when REY2/RY is high.

REY2/RY : Read Enable for Y2/Read Y Address Reset Logic Function for Y2

REY2/RY is a dual function control input. REY2, one of the two functions of REY2/RY, enables or

disablesbothinternalreadaddresspointersanddata-outbuffersofY2. WhenREY2/RY ishigh, the

internal read address pointer for Y2 is incremented synchronously with RCLKY2. When REY2/RY

is low, even if RCLKY2 is input, the internal read address pointer is not incremented.

RY, the second function of REY2/RY, works as an element to set read Y address (or bit address in

a certain line) reset mode. In a read address reset mode cycle, defined by RR2/TR high, RY works

asoneofinputswhichformseveralreadresetlogicasshowninthe"FUNCTIONTABLEforread".

In the read address reset cycle, when REY2/RY is low, the internal read Y address for Y2 is reset to

0. When REY2/RY is high, the internal read Y address for Y2 is reset to the address which was set

in the previous address set cycle.

DOY2/0-7 : Data-Outs for Y2

DOY2/0-7areserialdata-outsforY2.Eachcorrespondingdata-out-buffer'impedanceiscontrolled

by REY2/RY.

RYADC2 : Read Y Address for C2

RYADC2isareadYaddress(orbitaddressinacertainline)inputonlyforC2.RYADC2specifies

the first bit address of serial read data in the line whose line address is specified by RXAD2. 10 bits

of Y address data are input serially from RYADC2.

RCLKC2 : Read Clock for C2

RCLKC2isareadcontrolclockinputforonlyC2.(NotethatthereisRCLKY2forY2.)Synchronized

with RCLKC2, serial read access from C2 is executed when REC2/RY is high.

REC2/RY : Read Enable for C2/Read Y Address Reset Logic Function for C2

REC2/RY is a dual function control input. REC2, one of the two functions of REC2/RY, enables or

disables both internal read address pointers and data-out buffers for C2. When REC2/RY is high, the

internal read address pointer for C2 is incremented synchronously with RCLKC2. When REC2/RY

is low, even if RCLKC2 is input, the internal read address pointer is not incremented.

RY, the second function of REC2/RY, performs a function for setting the read Y address (or bit

address in a certain line) reset mode. In an address reset mode cycle, defined by RR2/TR high, RY

works as one of inputs which form several read reset logic as shown in the "FUNCTION TABLE for

read". In the read address reset cycle, when REC2/RY is low, the internal read Y address for C2 is

resetto0. WhenREC2/RYishigh, theinternalreadYaddressforC2isresettotheaddresswhich

was set in the previous read address set cycle.

DOC2/0-3 : Data-Outs for C2

DOC2/0-3 are serial data-outs for C2. Each corresponding data out buffer' impedance is controlled

by REC2/RY.

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1...5 6 789 10 11...42

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与MSM548333相关器件

型号	品牌	描述	获取价格	数据表
MSM548512D-10GS	OKI	Pseudo Static RAM, 512KX8, 100ns, CMOS, PDSO32, 0.525 INCH, PLASTIC, SSOP-32	获取价格
MSM548512D-10RS	OKI	Pseudo Static RAM, 512KX8, 100ns, CMOS, PDIP32, 0.600 INCH, PLASTIC, DIP-32	获取价格
MSM548512D-12GS	OKI	Pseudo Static RAM, 512KX8, 120ns, CMOS, PDSO32, 0.525 INCH, PLASTIC, SSOP-32	获取价格
MSM548512D-12RS	OKI	Pseudo Static RAM, 512KX8, 120ns, CMOS, PDIP32, 0.600 INCH, PLASTIC, DIP-32	获取价格
MSM548512D-80RS	OKI	Pseudo Static RAM, 512KX8, 80ns, CMOS, PDIP32, 0.600 INCH, PLASTIC, DIP-32	获取价格
MSM548512L	OKI	524,288-Word X 8-Bit High-Speed PSRAM	获取价格

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