DescriptionThe IDT7198S20 belongs to IDT7198 family which is a 65,536 bit high-speed static RAM organized as 16K x 4 and it is fabricated using IDT's high-performance, high-reliability technology-CMOS. This state-of-the-art technology, combined with innovative circuit design techniques, provides a cost effective approach for memory intensive applications. Access times as fast as 20ns are available. Military grade product is manufactured in compliance with the latest revision of MIL-STD-883, Class B, making it ideally suited to military temperature applications demanding the highest level of performance and reliability. This capability decreases power, while enhancing system reliability. The low-power version (L) also offers a battery backup data retention capability where the circuit typically consumes only 30W when operating from a 2V battery. The IDT7198 offers a reduced power standby mode, ISB1, which is activated when CS1 or CS2 goes HIGH. All inputs and outputs are TTL-compatible and operate from a single 5V supply. The lDT7198 is packaged in either a 24-pin ceramic DlP, 28-pin leadless chip carrier, and 24-pin CERPACK.
The features of IDT7198S20 can be summarized as (1)fast output enable (OE) pin available for added system flexibility; (2)multiple chip selects (CS1, CS2) simplify system design and operation; (3)high speed (equal access and cycle times) - Military: 20/25/35/45/55/70/85ns (max.); (4)low power consumption; (5)battery back-up operation-2V data retention (L version only); (6)24-pin CERDIP, high-density 28-pin leadless chip carrier, and 24-pin CERPACK packaging available; (7)produced with advanced CMOS technology; (8)bidirectional data inputs and outputs; (9)inputs/outputs TTL-compatible; (10)military product compliant to MIL-STD-883, Class B.
The recommended DC operating conditions of IDT7198S20 are (1)VCC supply voltage: 4.5(min)5.0(typ)5.5(max)V; (2)GND supply voltage: 0V; (3)VIH input high voltage: 2.2 to 6.0V; (4)VIL input low voltage: 0.5 to 0.8V( VIL (min.) = -3.0V for pulse width less than 20ns, once per cycle.).
IDT7198S20 Data Sheet
