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HM62832H Datasheet 32768-word x 8-bit High Speed CMOS Static RAM

Manufacturer: Hitachi Semiconductor (now Renesas)

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General Description

Pin Name A0 – A14 I/O0 – I/O7 CS WE OE VCC VSS Function Address Input/output Chip select Write enable Output enable Power supply Ground 2 Block Diagram A13 A14 A12 A7 A6 X address A5 buffer A4 A3 Row decoder HM62832H Series Memory array 512 × 512 VCC VSS I/O 0 I/O 7 WE OE CS I/O buffer Column I/O Column decoder Y address buffer A2 A1 A0 A10 A11 A9 A8 Absolute Maximum Ratings Parameter Voltage on any pin relative to VSS Power dissipation Operating temperature Storage temperature Storage temperature under bias Note: 1.

–2.5 V for pulse width ≤ 10 ns Symbol VT PT Topr Tstg Tbias Value –0.5 *1 to +7.0 1.0 0 to +70 –55 to +125 –10 to +85 Unit V W °C °C °C Function Table CS OE HX LL LH LL Note: X: H or L WE X H L L Mode Not selected Read Write VCC Current ISB, ISB1 I CC I CC I CC I/O Pin High-Z Dout Din Din Ref.

Cycle Read cycle (1) to (3) Write cycle (1) Write cycle (2) 3 HM62832H Series Recommended DC Operating Conditions (Ta

Overview

HM62832H Series 32768-word × 8-bit High Speed CMOS Static RAM.

Key Features

  • High speed: Fast access time 25/35/45 ns (max).
  • Low power Active: 300 mW (typ) Standby: 10 µW (typ) (L-version).
  • Single 5 V supply.
  • Completely static memory No clock or timing strobe required.
  • Equal access and cycle times.
  • Common data input and output.
  • Three state output.
  • Directly TTL compatible.
  • All inputs and outputs Ordering Information Type No. Access Time HM62832HP-25 HM62832HP-35 HM62832HP-45 25 ns 35 ns.

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