MSM5416283 查看數據表（PDF） - Oki Electric Industry

零件编号

产品描述 (功能)

生产厂家

MSM5416283

262,144-Word x 16-Bit Multiport DRAM

Oki Electric Industry 

E2L0023-17-Y1

¡ ¡ SemicondSucetormiconductor

MSM5416283

262,144-Word ¥ 16-Bit Multiport DRAM

This versioMn:SMJan5.4119692883

Previous version: Dec. 1996

DESCRIPTION

The MSM5416283 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 MSM5416283

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.

FEATURES

• Single power supply: 5 V ±10%

• RAS only refresh

• Full TTL compatibility

• CAS before RAS refresh

• Multiport organization

• Hidden refresh

RAM : 256K word ¥ 16 bits

• Serial read/write

SAM : 512 word ¥ 16 bits

• 512 tap location

• Extended page mode

• Programmable stops

• Write per bit

• Bidirectional data transfer

• Persistent write per bit

• Split transfer

• Byte write

• Masked write transfer

• Masked flash write

• Refresh: 512 cycles/8 ms

• Masked block write (8 columns)

• Package:

64-pin 525 mil plastic SSOP (SSOP64-P-525-0.80-K) (Product : MSM5416283-xxGS-K)

xx indicates speed rank.

PRODUCT FAMILY

Family

MSM5416283-50

MSM5416283-60

MSM5416283-70

Access Time

RAM SAM

50 ns 17 ns

60 ns 18 ns

70 ns 20 ns

Cycle Time

RAM SAM

110 ns 20 ns

120 ns 22 ns

140 ns 22 ns

Power Dissipation

Operating

Standby

180 mA

8 mA

170 mA

8 mA

160 mA

8 mA

1/40

Share Link: