MSM5416263

The MSM5416263 is a 4-Mbit CMOS multiport DRAM composed of a 262,144-word by 16-bit dynamic RAM, and a 512-word by 16-bit SAM. Its RAM and SAM operate independently and asynchronously.

It supports three types of operations: random access to RAM port, high speed serial access to SAM port, and bidirectional transfer of data between any selected row in the RAM port and the SAM port. In addition to the conventional multiport DRAM operating modes, the MSM5416263 features block write, flash write functions, extended page mode on the RAM port, a split data transfer capability, and programmable stops on the SAM port. The SAM port requires no refresh operation because it uses static CMOS flip-flops

Parameter	Symbol	Condition	Rating	Unit
Input Output Voltage	V_T	Ta = 25°C	–1.0 to 7.0	V
Output Current	I_OS	Ta = 25°C	50	mA
Power Dissipation	P_D	Ta = 25°C	1	W
Operating Temperature	T_opr	-	0 to 70	°C
Storage Temperature	T_stg	-	–55 to 150	°C

• Single power supply: 5 V ±10%
• Full TTL compatibility
• Multiport organization
   RAM : 256K word × 16 bits
   SAM : 512 word × 16 bits
• Extended page mode
•Write per bit
• Persistent write per bit
• Byte write
• Masked flash write
• Masked block write (4 × 4 ×4)
• RAS only refresh
• CAS before RAS refresh
• Hidden refresh
• Serial read/write
• 512 tap location
• Programmable stops
• Bidirectional data transfer
• Split transfer
• Masked write transfer
• Refresh: 512 cycles/8 ms
• Package:
   64-pin 525 mil plastic SSOP   (SSOP64-P-525-0.80-K)   (Product : MSM5416263-xxGS-K)
   xx indicates speed rank.

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Description

Specifications

Features

Pinout

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