Datasheet > MSM514262

MSM514262

更新时间： 2022-12-11 18:20:37

品牌	Logo	应用领域
冲电气 - OKI		动态存储器
页数	文件大小	规格书
45页	501K
描述
262,144-Word x 4-Bit Multiport DRAM

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

MSM514262 数据手册

E2L0013-17-Y1

This version: Jan. 1998

Previous version: Dec. 1996

¡ Semiconductor

MSM514262

¡ Semiconductor

MSM514262

262,144-Word ¥ 4-Bit Multiport DRAM

DESCRIPTION

The MSM514262 is an 1-Mbit CMOS multiport DRAM composed of a 262,144-word by 4-bit

dynamic RAM and a 512-word by 4-bit SAM. Its RAM and SAM operate independently and

asynchronously.

The MSM514262 supports three types of operation : 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 MSM514262 features the block write and flash write functions on the RAM port and

a split data transfer capability 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%

• Full TTL compatibility

• Multiport organization

RAM: 256K word ¥ 4 bits

SAM: 512 word ¥ 4 bits

• Fast page mode

• Write per bit

• Masked flash write

• Masked block write

• RAS only refresh

• CAS before RAS refresh

• Hidden refresh

• Serial read/write

• 512 tap location

• Bidirectional data transfer

• Split transfer

• Masked write transfer

• Refresh: 512 cycles/8 ms

• Package options:

28-pin 400 mil plastic ZIP (ZIP28-P-400-1.27)

28-pin 400 mil plastic SOJ (SOJ28-P-400-1.27)

(Product : MSM514262-xxZS)

(Product : MSM514262-xxJS)

xx indicates speed rank.

PRODUCT FAMILY

Access Time

Family

Cycle Time

Power Dissipation

RAM

70 ns

80 ns

100 ns

SAM

25 ns

RAM

140 ns

150 ns

180 ns

SAM

30 ns

Operating

Standby

8 mA

MSM514262-70

MSM514262-80

MSM514262-10

120 mA

110 mA

100 mA

8 mA

1/45

12 3 4 5 6 7...45

下载PDF

与MSM514262相关器件

型号	品牌	描述	获取价格	数据表
MSM514262-10	OKI	262,144-Word x 4-Bit Multiport DRAM	获取价格
MSM514262-10JS	OKI	262,144-Word x 4-Bit Multiport DRAM	获取价格
MSM514262-10ZS	OKI	262,144-Word x 4-Bit Multiport DRAM	获取价格
MSM514262-70	OKI	262,144-Word x 4-Bit Multiport DRAM	获取价格
MSM514262-70JS	OKI	262,144-Word x 4-Bit Multiport DRAM	获取价格
MSM514262-70ZS	OKI	262,144-Word x 4-Bit Multiport DRAM	获取价格