概要
説明
The 70T659 is a high-speed 128K x 36 asynchronous dual-port static RAM designed to be used as a stand-alone dual-port RAM or as a combination Master/Slave dual-port RAM for 72-bit or more word systems which would result in full-speed, error-free operation without the need for additional discrete logic. An automatic power-down feature controlled by the Chip Enables (either CE0 or CE1) permits the on-chip circuitry of each port to enter a very low standby power mode.
特長
- Dual-port allows simultaneous access of the same memory location
- RapidWrite mode simplifies high-speed consecutive write cycles
- Dual Chip Enables allow for depth expansion without external logic
- Easily expands data bus width to 72 bits or more using the Master/Slave select when cascading more than one device
- Busy and Interrupt flags
- On-chip port arbitration logic
- Full on-chip hardware support of semaphore signaling between ports
- Fully asynchronous operation from either port
- Separate byte controls for multiplexed bus and bus-matching compatibility
- Sleep mode inputs on both ports
- Includes JTAG functionality
- Single 2.5V (±100mV) power supply for core
- LVTTL-compatible, selectable 3.3V (±150mV) or 2.5V (±100mV) power supply for I/Os and control signals on each port
- Available in 256-ball BGA, 208-pin PQFP, and 208-ball fpBGA packages
- Industrial temperature range (–40 °C to +85 °C) is available
製品比較
アプリケーション
設計・開発
モデル
ECADモデル
[製品選択]テーブル内の製品名をクリックするとSamacSysが提供する回路図シンボル、PCBフットプリント、3D CADモデルがご確認いただけます。 お探しのシンボルやモデルが見つからない場合、Webサイトから直接リクエストできます。