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71321LA35JG Datasheet(PDF) 2 Page - Integrated Device Technology |
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71321LA35JG Datasheet(HTML) 2 Page - Integrated Device Technology |
2 / 17 page 6.42 IDT71321SA/LA and IDT71421SA/LA High Speed 2K x 8 Dual-Port Static RAM with Interrupts Industrial and Commercial Temperature Ranges 2 IDT71321/421J J52-1(4) PLCC Top View(5) INDEX I/O A A A A A A A A A I/O I/O I/O 1L 2L 3L 4L 5L 6L 7L 8L 9L 0L 1L 3L 2L OE A A A A A A A A A A NC I/O R 0R 1R 2R 3R 4R 5R 6R 7R 8R 9R 7R 1 2 3 4 5 6 747 48 49 50 51 52 9 8 10 11 12 13 14 15 16 17 18 19 20 27 26 25 24 23 22 21 33 32 31 30 29 28 35 34 36 37 38 39 40 41 42 43 44 45 46 2691 drw 02 , INDEX IDT71321/421PF or TF PN64-1 / PP64-1(4) 64-Pin TQFP 64-Pin STQFP Top View(5) 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 46 45 44 43 42 41 40 39 38 37 36 35 34 47 48 33 I/O6R N/C A0R A1R A2R A3R A4R A5R A6R A7R A8R A9R I/O7R OER N/C N/C I/O2L A0L OEL A1L A2L A3L A4L A5L A6L A7L A8L A9L I/O0L I/O1L N/C N/C 2691 drw 03 , Pin Configurations(1,2,3) Description The IDT71321/IDT71421 are high-speed 2K x 8 Dual-Port Static RAMs with internal interrupt logic for interprocessor communications. The IDT71321 is designed to be used as a stand-alone 8-bit Dual- Port Static RAM or as a "MASTER" Dual-Port Static RAM together with the IDT71421 "SLAVE" Dual-Port in 16-bit-or-more word width systems. Using the IDT MASTER/SLAVE Dual-Port Static RAM ap- proach in 16-or-more-bit memory system applications results in full speed, error-free operation without the need for additional discrete logic. Both devices provide 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 325mW of power. Low-power (LA) versions offer battery backup data retention capability, with each Dual- Port typically consuming 200µW from a 2V battery. The IDT71321/IDT71421 devices are packaged in 52-pin PLCCs, 64-pin TQFPs, and 64-pin STQFPs. NOTES: 1. All VCC pins must be connected to power supply. 2. All GND pins must be connected to ground supply. 3. J52-1 package body is approximately .75 in x .75 in x .17 in. PN64-1 package body is approximately 14mm x 14mm x 1.4mm. PP64-1 package body is approximately 10mm x 10mm x 1.4mm. 4. This package code is used to reference the package diagram. 5. This text does not indicate orientation of the actual part-marking. |
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