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IDT71V321(MIX), IDT71V321-5TF, IDT71V321L

Table of contents:
Info of IDT71V321(MIX)
Info of IDT71V321-5TF
Info of IDT71V321L

IDT71V321(MIX), IDT71V321-5TF, IDT71V321L Selling Leads, Datasheet

MFG:IDT Package Cooled:TQFP D/C:05+

IDT71V321(MIX), IDT71V321-5TF, IDT71V321L Picture

IDT71V321(MIX), IDT71V321-5TF, IDT71V321L Datasheet download

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Part Number: IDT71V321(MIX)

MFG: IDT

Package Cooled: TQFP

D/C: 05+

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IDT71V321L General Description

The IDT71V321/IDT71V421 are high-speed 2K x 8 Dual-Port tatic RAMs with internal interrupt logic for interprocessor communications. he IDT71V321 is designed to be used as a stand-alone 8-bit ual-Port RAM or as a "MASTER" Dual-Port RAM together with the DT71V421 "SLAVE" Dual-Port in 16-or-more-bit memory system applications esults in full speed, error-free operation without the need for additional discrete logic.

The 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 byCE, 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 325mW of power. Low-power (L) versions offer battery backup data retention capability, with each Dual- Port typically consuming 200W from a 2V battery.

The IDT71V321/IDT71V421 devices are packaged in a 52-pin PLCC, a 64-pin TQFP (thin quad flatpack), and a 64-pin STQFP (super thin quad flatpack).

IDT71V321L Maximum Ratings

Symbol	Rating	Commercial & Industrial	Unit
V_TERM⁽²⁾	Terminal Voltage with Respect to GND	-0.5 to +4.6	V
T_A	Commercial Operating Temperature	0 to +70
T_BIAS	Temperature Under Bias	55 to +125
T_STG	Storage Temperature	55 to +125
I_OUT	DC Output Current	50	mA

NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
2. V_TERM must not exceed V_CC + 10% for more than 25% of the cycle time or 10ns aximum, and is limited to 20mA for the period of V_TERM V_CC + 10%.

IDT71V321L Features

` High-speed access
Commercial: 25/35/55ns (max.)
Industrial: 25ns (max.)
` Low-power operation
IDT71V321/IDT71V421S
       Active: 325mW (typ.)
       Standby: 5mW (typ.)
IDT71V321/V421L
      Active: 325mW (typ.)
     Standby: 1mW (typ.)
` Two INT flags for port-to-port communications
` MASTER IDT71V321 easily expands data bus width to 16-or-more-bits using SLAVE IDT71V421
` On-chip port arbitration logic (IDT71V321 only)
` BUSY output flag on IDT71V321; BUSY input on IDT71V421
` Fully asynchronous operation from either port
` Battery backup operation-2V data retention (L only)
` TTL-compatible, single 3.3V power supply
` Available in 52-pin PLCC, 64-pin TQFP and STQFP packages
` Industrial temperature range (40°C to +85°C) is available for selected speeds

IDT71V321L Connection Diagram

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