Overview
Description
The 71V3558 3.3V CMOS synchronous SRAM, organized as 256K x 18, is designed to eliminate dead bus cycles when turning the bus around between reads and writes or writes and reads. Thus, it has been given the name ZBT™, or Zero Bus Turnaround. The 71V3558 contains data I/O, address, and control signal registers.
Features
- Supports high-performance system speed - 200MHz (x18) (3.2ns Clock-to-Data access)
- ZBT feature - No dead cycles between write and read cycles
- Internally synchronized output buffer enable eliminates the need to control OE
- Single R/W (Read/Write) control pin
- Positive clock-edge triggered address, data, and control signal registers for fully pipelined applications
- 4-word burst capability (interleaved or linear)
- Individual byte write (BW1 - BW4) control (May tie active)
- Three chip enables for simple depth expansion
- 3.3V power supply (±5%), 3.3V I/O Supply (VDDQ)
- Optional- Boundary Scan JTAG interface (IEEE 1149.1 compliant)
- Available in 100-pin TQFP and 165 fpBGA packages
Comparison
Applications
Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
Pkg. Type |
Lead Count (#) |
Temp. Grade |
Pb (Lead) Free |
Carrier Type |
Moisture Sensitivity Level (MSL) |
Price (USD) | 1ku |
Buy / Sample |
|
|---|---|---|---|---|---|---|---|---|
| Part Number | ||||||||
| TQFP | 100 | I | Yes | Tray | 3 | |||
| TQFP | 100 | I | Yes | Reel | 3 | 9.106 |
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