4K X 16/18和8K X 16/18双端口静态RAM与SEM , INT , BUSY 4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
Functional Description
The CY7C024/024A/0241 and CY7C025/0251 are low power CMOS 4K x 16/18 and 8K x 16/18 dual-port static RAMs. Various arbitration schemes are included on the CY7C024/ 0241 and CY7C025/0251 to handle situations when multiple processors access the same piece of data. Two ports are provided, permitting independent, asynchronous access for reads and writes to any location in memory.
Features
■ True dual-ported memory cells, which allow simultaneous reads of the same memory location
■ 4K x 16 organization CY7C024/024A[1]
■ 4K x 18 organization CY7C0241
■ 8K x 16 organization CY7C025
■ 8K x 18 organization CY7C0251
■ 0.65 micron CMOS for optimum speed and power
■ High speed access: 15 ns
■ Low operating power: ICC = 150 mA typ
■ Fully asynchronous operation
■ Automatic power down
■ Expandable data bus to 32/36 bits or more using Master/Slave chip select when using more than one device
■ On-chip arbitration logic
■ Semaphores included to permit software handshaking between ports
■ INT flag for port-to-port communication
■ Separate upper-byte and lower-byte control
■ Pin select for Master or Slave
■ Available in 84-pin Pb-free PLCC, 84-pin PLCC, 100-pin Pb-free TQFP, and 100-pin TQFP
电源电压DC 5.00 V, 5.50 V max
供电电流 300 mA
时钟频率 15.0 GHz
位数 16
存取时间 15 ns
内存容量 128000 B
存取时间Max 15 ns
工作温度Max 70 ℃
工作温度Min 0 ℃
电源电压 4.5V ~ 5.5V
安装方式 Surface Mount
引脚数 100
封装 TQFP-100
封装 TQFP-100
工作温度 0℃ ~ 70℃ TA
产品生命周期 Unknown
包装方式 Bulk
RoHS标准 RoHS Compliant
含铅标准 Lead Free
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
CY7C025-15AXC Cypress Semiconductor 赛普拉斯 | 当前型号 | 当前型号 |
CY7C025AV-25AXI 赛普拉斯 | 类似代替 | CY7C025-15AXC和CY7C025AV-25AXI的区别 |
CY7C025AV-25AXC 赛普拉斯 | 类似代替 | CY7C025-15AXC和CY7C025AV-25AXC的区别 |
CY7C025AV-20AXC 赛普拉斯 | 类似代替 | CY7C025-15AXC和CY7C025AV-20AXC的区别 |