SCSI Bus Interface Controller IC WD33C93AJM

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Description

The WD33C93AJM is a Small Computer System Interface (SCSI) Bus Interface Controller (SBIC) integrated circuit originally developed by Western Digital Corporation. It implements the logic required to control and manage standard SCSI bus operations, enabling communication between a host system and SCSI peripherals (such as disk drives or tape units). The device includes on-chip control logic and registers to support SCSI bus phases, handshaking, and synchronous data transfers.

FEATURES

  • Logic Voltage: ~5 V TTL compatible
  • Bus Support: SCSI synchronous + asynchronous (early SCSI standards)
  • Registers / Control Logic: Yes – on-chip microcode sequencer
  • RoHS Status: Lead-free / RoHS compliant

SPECIFICATION

  • Dimension: 12.7 × 12.7 × 1.27 mm
  • Additional information
  • Gross weight: 2 g
  • Manufacturer part number: WD33C93AJM