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MSM6691 - DRAM Interface IC

General Description

DRAMs can be used for voice storage by connecting the MSM6691 with OKI's integrate R/W (Read/Write) ICs, the MSM6388, and the MSM6588.

Key Features

  • DRAM (.
  • 1-bit configuration).
  • 1-Mbit DRAM (M 51100A, M511001A) : Four units can be used.
  • 4-Mbit DRAM (M 514100A, M514101A) : Four units can be used.
  • Power voltage : 5V single.
  • Built-in refresh circuit (RAS only refresh).
  • Oscillation frequency : 8MHz (during refresh).
  • Sampling frequency.
  • 4 kHz to 32 kHz when MSM6388 is connected.
  • 4 kHz to 16 kHz when MSM6588 is connected.
  • Package : 44-pin plastic QF.

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¡ Semiconductor MSM6691 ¡ Semiconductor DRAM Interface IC MSM6691 GENERAL DESCRIPTION DRAMs can be used for voice storage by connecting the MSM6691 with OKI's integrate R/W (Read/Write) ICs, the MSM6388, and the MSM6588. The MSM6691 translates the signals associated with the dedicated serial register interface of the MSM6388 and MSM6588 driver interface when used in a stand-alone mode. FEATURES • DRAM (¥ 1-bit configuration) • 1-Mbit DRAM (M 51100A, M511001A) : Four units can be used. • 4-Mbit DRAM (M 514100A, M514101A) : Four units can be used. • Power voltage : 5V single • Built-in refresh circuit (RAS only refresh) • Oscillation frequency : 8MHz (during refresh) • Sampling frequency • 4 kHz to 32 kHz when MSM6388 is connected. • 4 kHz to 16 kHz when MSM6588 is connected.