¡ Semiconductor

MSM6691

5

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.

• Package : 44-pin plastic QFP (QFP44-P-910-2K) (Product name : MSM6691GS-2K)

¡ Semiconductor

MSM6691

DRAM Interface IC