W9864G6JB-6

The W9864G6JB-6 is a 64‑Mbit synchronous DRAM (SDRAM) device from Winbond Electronics, organized as 1M × 4 banks × 16 bits with a parallel memory interface. The device is specified for a 166 MHz clock frequency (‑6 speed grade) and delivers up to 166M words per second data bandwidth.

Designed for systems requiring compact, high‑speed volatile memory, the W9864G6JB-6 provides standard SDRAM command support and power modes in a 60‑ball VFBGA package (6.4 × 10.1 mm).

Key Features

• SDRAM architecture — Organized as 1M × 4 banks × 16 bits, supporting standard SDRAM commands and burst operation modes documented in the datasheet.
• Performance — Specified for 166 MHz clock operation (‑6 speed grade) and an access time of 5 ns, providing synchronous high‑speed data transfer.
• Memory capacity & organization — 64 Mbit total capacity, arranged as 4M × 16 for parallel access.
• Power and low‑power modes — Supports Power Down and Self Refresh modes as described in the device functional description to reduce power during idle periods.
• Voltage supply — Operates from 3.0 V to 3.6 V, suitable for standard 3 V SDRAM systems.
• Package — 60‑ball VFBGA (6.4 × 10.1 mm) with 0.65 mm ball pitch and 0.4 mm ball diameter for compact board-level integration.
• Operating range — Commercial ambient temperature range of 0 °C to 70 °C (TA) as specified.
• Comprehensive timing and control — Supports Mode Register Set, auto‑precharge, burst reads/writes, refresh cycles and other standard SDRAM control sequences detailed in the datasheet.

Typical Applications

• Embedded memory subsystems — Fits designs that require a 64‑Mbit parallel SDRAM device for system DRAM expansion or buffering.
• Consumer electronics — Applicable where compact VFBGA packaging and 166 MHz SDRAM performance are required on space‑constrained PCBs.
• Industrial and commercial equipment — Use in equipment operating within the specified 0 °C to 70 °C ambient temperature range needing synchronous DRAM.

Unique Advantages

• Balanced performance and capacity: 64 Mbit density with 1M × 4 banks × 16‑bit organization and 166 MHz clock support provides predictable synchronous bandwidth for parallel memory designs.
• Compact VFBGA footprint: 60‑ball VFBGA (6.4 × 10.1 mm) reduces board area while providing standard BGA connectivity for reliable mounting.
• Standard SDRAM feature set: Supports burst read/write, auto‑precharge, self refresh and power down modes to match common SDRAM controller implementations.
• <strong-Wide supply tolerance: Operation across 3.0–3.6 V enables use in typical 3 V SDRAM power domains.
• Documented timing and control: Detailed timing waveforms, command descriptions and operating examples in the datasheet simplify integration and validation.

Why Choose W9864G6JB-6?

The W9864G6JB-6 offers a straightforward SDRAM building block for designs that need a 64‑Mbit parallel memory device with 166 MHz synchronous operation. Its 1M × 4 banks × 16‑bit organization, standard SDRAM control features and compact 60‑ball VFBGA package make it suitable for systems where predictable bandwidth, documented timing and minimized board area are priorities.

Provided by Winbond Electronics and supported by a detailed datasheet that includes electrical characteristics, timing diagrams and package specifications, the W9864G6JB-6 is appropriate for engineers seeking a documented, compact SDRAM solution for commercial ambient temperature applications.

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