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IDT7140SA20CB Datasheet(PDF) 1 Page - Integrated Device Technology |
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IDT7140SA20CB Datasheet(HTML) 1 Page - Integrated Device Technology |
1 / 14 page Integrated Device Technology, Inc. HIGH-SPEED 1K x 8 DUAL-PORT STATIC RAM IDT7130SA/LA IDT7140SA/LA FEATURES • High-speed access —Military: 25/35/55/100ns (max.) —Commercial: 25/35/55/100ns (max.) —Commercial: 20ns 7130 in PLCC and TQFP • Low-power operation —IDT7130/IDT7140SA —Active: 550mW (typ.) —Standby: 5mW (typ.) —IDT7130/IDT7140LA —Active: 550mW (typ.) —Standby: 1mW (typ.) • MASTER IDT7130 easily expands data bus width to 16-or-more-bits using SLAVE IDT7140 • On-chip port arbitration logic (IDT7130 Only) • BUSY output flag on IDT7130; BUSY input on IDT7140 • Interrupt flags for port-to-port communication • Fully asynchronous operation from either port • Battery backup operation–2V data retention (LA only) • TTL-compatible, single 5V ±10% power supply • Military product compliant to MIL-STD-883, Class B • Standard Military Drawing #5962-86875 • Industrial temperature range (–40 °C to +85°C) is avail- able, tested to military electrical specifications The IDT logo is a registered trademark of Integrated Device Technology, Inc. DESCRIPTION The IDT7130/IDT7140 are high-speed 1K x 8 Dual-Port Static RAMs. The IDT7130 is designed to be used as a stand-alone 8-bit Dual-Port RAM or as a "MASTER" Dual- Port RAM together with the IDT7140 "SLAVE" Dual-Port in 16-bit-or-more word width systems. Using the IDT MAS- TER/SLAVE Dual-Port RAM approach 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 sepa- rate 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 tech- nology, these devices typically operate on only 550mW of power. Low-power (LA) versions offer battery backup data retention capability, with each Dual-Port typically consum- ing 200 µW from a 2V battery. The IDT7130/IDT7140 devices are packaged in 48-pin sidebraze or plastic DIPs, LCCs, or flatpacks, 52-pin PLCC, and 64-pin TQFP and STQFP. Military grade product is manufactured in compliance with the latest revision of MIL- STD-883, Class B, making it ideally suited to military tem- perature applications demanding the highest level of per- formance and reliability. FUNCTIONAL BLOCK DIAGRAM 6.01 1 MILITARY AND COMMERCIAL TEMPERATURE RANGES OCTOBER 1996 ©1996 Integrated Device Technology, Inc. DSC-2689/7 I/O Control Address Decoder MEMORY ARRAY ARBITRATION and INTERRUPT LOGIC Address Decoder I/O Control R/ WL CEL OEL BUSYL A9L A0L 2689 drw 01 I/O0L- I/O7L CEL OEL R/ WL INTL BUSYR I/O0R-I/O7R A9R A0R INTR CER OER (2) (1,2) (1,2) (2) R/ WR CER OER R/ WR 10 10 NOTES: 1. IDT7130 (MASTER): BUSY is open drain output and requires pullup resistor of 270 Ω. IDT7140 (SLAVE): BUSY is input. 2. Open drain output: requires pullup resistor of 270 Ω. For latest information contact IDT’s web site at www.idt.com or fax-on-demand at 408-492-8391. |
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