2K x 8 Dual-Port RAM w/Int

The 71421 is a high-speed 2K x 8 Dual-Port Static RAM with internal interrupt logic for interprocessor communications. It is designed to be used as a \"SLAVE\" Dual-Port RAM together with the 71321 \"MASTER\" Dual-Port in 16-bit-or-more word width systems which would result in full-speed, error free True Dual-Ported memory cells which allow simultaneous access of the same memory location\nTwo INT flags for port-to-port communications\nBUSY input\nFully asynchronous operation from either port\nBattery backup operation – 2V data retention (LA only)\nTTL-compatible, single 5V ±10% power supply;

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HIGH SPEED 2K X 8 DUAL-PORT STATIC RAM WITH INTERRUPTS

Features ◆ High-speed access – Commercial: 20/35/55ns (max.) – Industrial: 25/55ns (max.) ◆ Low-power operation – IDT71321/IDT71421SA — Active: 325mW (typ.) — Standby: 5mW (typ.) – IDT71321/421LA — Active: 325mW (typ.) — Standby: 1mW (typ.) ◆ Two INT flags for port-to-port communication

文件：492.99 Kbytes 页数：19 Pages

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HIGH SPEED 2K X 8 DUAL-PORT STATIC RAM WITH INTERRUPTS

Features ◆ High-speed access – Commercial: 20/35/55ns (max.) – Industrial: 25/55ns (max.) ◆ Low-power operation – IDT71321/IDT71421SA — Active: 325mW (typ.) — Standby: 5mW (typ.) – IDT71321/421LA — Active: 325mW (typ.) — Standby: 1mW (typ.) ◆ Two INT flags for port-to-port communication

文件：492.99 Kbytes 页数：19 Pages

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HIGH SPEED 2K X 8 DUAL-PORT STATIC RAM WITH INTERRUPTS

Features ◆ High-speed access – Commercial: 20/35/55ns (max.) – Industrial: 25/55ns (max.) ◆ Low-power operation – IDT71321/IDT71421SA — Active: 325mW (typ.) — Standby: 5mW (typ.) – IDT71321/421LA — Active: 325mW (typ.) — Standby: 1mW (typ.) ◆ Two INT flags for port-to-port communication

文件：492.99 Kbytes 页数：19 Pages

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HIGH SPEED 2K X 8 DUAL-PORT STATIC RAM WITH INTERRUPTS

Features ◆ High-speed access – Commercial: 20/35/55ns (max.) – Industrial: 25/55ns (max.) ◆ Low-power operation – IDT71321/IDT71421SA — Active: 325mW (typ.) — Standby: 5mW (typ.) – IDT71321/421LA — Active: 325mW (typ.) — Standby: 1mW (typ.) ◆ Two INT flags for port-to-port communication

文件：492.99 Kbytes 页数：19 Pages

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HIGH SPEED 2K X 8 DUAL-PORT STATIC RAM WITH INTERRUPTS

Features ◆ High-speed access – Commercial: 20/35/55ns (max.) – Industrial: 25/55ns (max.) ◆ Low-power operation – IDT71321/IDT71421SA — Active: 325mW (typ.) — Standby: 5mW (typ.) – IDT71321/421LA — Active: 325mW (typ.) — Standby: 1mW (typ.) ◆ Two INT flags for port-to-port communication

文件：492.99 Kbytes 页数：19 Pages

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HIGH SPEED 2K X 8 DUAL-PORT STATIC RAM WITH INTERRUPTS

Features ◆ High-speed access – Commercial: 20/35/55ns (max.) – Industrial: 25/55ns (max.) ◆ Low-power operation – IDT71321/IDT71421SA — Active: 325mW (typ.) — Standby: 5mW (typ.) – IDT71321/421LA — Active: 325mW (typ.) — Standby: 1mW (typ.) ◆ Two INT flags for port-to-port communication

文件：492.99 Kbytes 页数：19 Pages

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瑞萨

HIGH SPEED 2K X 8 DUAL-PORT STATIC RAM WITH INTERRUPTS

Features ◆ High-speed access – Commercial: 20/35/55ns (max.) – Industrial: 25/55ns (max.) ◆ Low-power operation – IDT71321/IDT71421SA — Active: 325mW (typ.) — Standby: 5mW (typ.) – IDT71321/421LA — Active: 325mW (typ.) — Standby: 1mW (typ.) ◆ Two INT flags for port-to-port communication

文件：492.99 Kbytes 页数：19 Pages

RENESAS

瑞萨

HIGH SPEED 2K X 8 DUAL-PORT STATIC RAM WITH INTERRUPTS

Features ◆ High-speed access – Commercial: 20/35/55ns (max.) – Industrial: 25/55ns (max.) ◆ Low-power operation – IDT71321/IDT71421SA — Active: 325mW (typ.) — Standby: 5mW (typ.) – IDT71321/421LA — Active: 325mW (typ.) — Standby: 1mW (typ.) ◆ Two INT flags for port-to-port communication

文件：492.99 Kbytes 页数：19 Pages

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HIGH SPEED 2K X 8 DUAL-PORT STATIC RAM

文件：143.75 Kbytes 页数：17 Pages

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