Z53C8003PSC View Datasheet(PDF) - Zilog

Part Name

Description

MFG CO.

Z53C8003PSC

SMALL COMPUTER SYSTEM INTERFACE (SCSI)

Zilog

'Z53C8003PSC' PDF : 40 Pages View PDF

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ZILOG
/DB7-/DB0,
/DBP /ACK /ATN /BSY /MSG I//O C//D /REQ /RST /SEL
Z53C80 SCSI
/IOR
/IOW
/CS
/RESET
A2-A0
D7-D0
CPU BUS
Interface
Interface
Control
Logic
DMA
Logic
48 mA SCSI Transceivers
Data
Input
Register
Data
Output
Register
Interrupt
Logic
Control
Registers
Figure 2a. SCSI Block Diagram
D7-D0
A2-A0
/IOR
/IOW
/CS
/RESET
/DACK
/EOP
DRQ
READY
IRQ
GND
Z53C80
SCSI
/DB7-/DB0, /DBP
/ACK
/ATN
/BSY
/MSG
I//O
C//D
/REQ
/RST
/SEL
VCC
Figure 2b. SCSI Pin Functions
PS97SCC0200
3

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