Position: Home  > All Categories> Integrated Circuits (ICs) > SN75C091A

SN75C091A

Features: 1.2.1 SCSI Bus Interface• Complies with ANSI X3.131-1986 SCSI standard• Performs INITIATOR and TARGET functions• Supports arbitration, selection, and reselection• Performs asynchronous data transfers of up to 5 Megabytes/second (MBps)• Performs synchronous d...

product image

SN75C091A Picture
See larger image
SeekIC No. : 004499694 Detail

SN75C091A: Features: 1.2.1 SCSI Bus Interface• Complies with ANSI X3.131-1986 SCSI standard• Performs INITIATOR and TARGET functions• Supports arbitration, selection, and reselection• P...

SN75C091A Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
SN75C091A
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2025/12/24

add to my favourite

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



Features:

1.2.1 SCSI Bus Interface
• Complies with ANSI X3.131-1986 SCSI standard
• Performs INITIATOR and TARGET functions
• Supports arbitration, selection, and reselection
• Performs asynchronous data transfers of up to 5 Megabytes/second (MBps)
• Performs synchronous data transfers of up to 5 Megabytes/second (MBps) with programmable
offset up to 15
• Has on-chip 48-mA transceivers
• Provides optional parity generation, checking, and pass-through
• Reduces overhead associated with initiator multi-threading by automatically handling savedata-
pointer messages, disconnects, and reconnects
• Performs automatic message and command-length decoding
• Has two 32-byte FIFOs for command and message preloading
1.2.2 Microprocessor Interface
• Provides chip control via directly-addressable registers
• Has optional address latch line for multiplexed address/data buses
• Allows DMA- or programmed-I/O data transfers
• Is interrupt-driven to minimize host polling
• Can execute multi-phase commands to minimize interrupts
• Has 24-bit transfer counter
• Provides byte-stacking control to accommodate 8-, 16-, and 32-bit systems
• Offers optional parity generation and checking
• Is equipped with separate ports for DMA and microprocessor interfacing
1.2.3 General
• Requires a single 5 V ± 5% power supply
• Low-power CMOS technology
• 68-pin PLCC package


Pinout

Connection Diagram


Specifications

Supply voltage range, VCC (see Note 1). . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V
Input voltage range, VI, at any input  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to 7 V
Output voltage range, VO  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .0.5 V to 7 V
Storage temperature range  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .65°C to 150°C
Case temperature for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .260°C
NOTE 1: All voltage values are with respect to GND.


Description

The SN75C091A provides the capability to interface a microprocessor subsystem to the ANSI Small Computer Systems Interface (SCSI). This single-ended SCSI implementation acts as one of up to eight nodes communicating over a maximum six-meter bus as detailed in the SCSI specification (ANSI X3.131-1986). Its microprocessor and DMA interfaces allow the SN75C091A SCSI Bus Controller (SBC) to be used in a variety of host or peripheral applications.

This document of SN75C091A is not intended to serve as a tutorial on the Small Computer Systems Interface bus; users should refer to ANSI X3.131-1986 for detailed information regarding the SCSI bus.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
You may also be interested in :
Cables, Wires
821-0814-a
415-0100-150
Industrial Controls, Meters
SGDM-15ADA
41AA1600E
LED Products
LM24P20
KCG057QV1DB-G770
Optical Inspection Equipment
AA924
A21K4B
Capacitors
GRM188R71H103KA01D
GRM21BR71H104KA01L
Integrated Circuits (ICs)
TA8435H
1MB12-140
View more