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CY7C1049 Datasheet 512K x 8 Static RAM

Manufacturer: Cypress (now Infineon)

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General Description

The CY7C1049 is a high-performance CMOS static RAM organized as 524,288 words by 8 bits.

Easy memory expansion Logic Block Diagram Pin Configuration SOJ Top View A0 A1 A2 A3 A4 CE I/O0 I/O1 VCC GND I/O2 I/O3 WE A5 A6 A7 A8 A9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 NC A18 A17 A16 A15 OE I/O7 I/O6 GND VCC I/O5 I/O4 A14 A13 A12 A11 A10 NC I/O0 INPUT BUFFER A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 I/O1 ROW DECODER I/O2 SENSE AMPS 512K x 8 ARRAY I/O3 I/O4 I/O5 1049–2 CE WE COLUMN DECODER POWER DOWN I/O6 I/O7 A 11 A 12 A 13 A14 A15 A16 A17 A18 OE 1049–1 Selection Guide 7C1049-12 Maximum Access Time (ns) Maximum Operating C

Overview

049 PRELIMINARY CY7C1049 512K x 8 Static RAM.

Key Features

  • High speed.
  • t AA = 15 ns.
  • Low active power.
  • 1210 mW (max. ).
  • Low CMOS standby power (Commercial L version).
  • 2.75 mW (max. ).
  • 2.0V Data Retention (400 µW at 2.0V retention).
  • Automatic power-down when deselected.
  • TTL-compatible inputs and outputs.
  • Easy memory expansion with CE and OE features is provided by an active LOW chip enable (CE), an active LOW output enable (OE), and three-state drivers. Writing to the.

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