IDT70261S25PFI

Product Summary

The IDT70261S25PFI is a high-speed 16K x 16 Dual-Port Static RAM. The IDT70261S25PFI is designed to be used as a stand-alone Dual-Port RAM or as a combination MASTER/SLAVE Dual-Port RAM for 32-bit-or-more word systems using the IDT MASTER/SLAVE Dual-Port RAM approach in 32-bit or wider memory system applications results in full-speed, error-free operation without the need for additional discrete logic. This device provides two independent ports with separate control, address, and I/O pins that permit independent, asynchronous access for reads or writes to any location in memory. An automatic power down feature controlled by CE permits the on-chip circuitry of each port to enter a very low standby power mode. Fabricated using IDT’s CMOS high-performance technology, these devices typically operate on only 750mW of power. The IDT70261S25PFI is packaged in a 100-pin TQFP.

Parametrics

IDT70261S25PFI absolute maximum ratings: (1)VTERM(2) Terminal Voltage with Respect to GND: -0.5 to +7.0V; (2)TBIAS Temperature Under Bias: -55 to +125℃; (3)TSTG Storage Temperature: -55 to +125℃; (4)IOUT DC Output Current: 50mA.

Features

IDT70261S25PFI features: (1)True Dual-Ported memory cells which allow simultaneous access of the same memory location; (2)High-speed access; (3)Low-power operation; (4)Separate upper-byte and lower-byte control for multiplexed bus compatibility; (5)IDT70261 easily expands data bus width to 32 bits or more using the Master/Slave select when cascading more than one device; (6)M/S = H for BUSY output flag on Master, M/S = L for BUSY input on Slave; (7)Busy and Interrupt Flags; (8)On-chip port arbitration logic; (9)Full on-chip hardware support of semaphore signaling between ports; (10)Fully asynchronous operation from either port; (11)TTL-compatible, single 5V (±10%) power supply; (12)Available in 100-pin Thin Quad Flat-pack; (13)Industrial temperature range (-40℃ to +85℃) is available for selected speeds.

Diagrams