IA8044_01 Datasheet, PDF (27/32 Pages) InnovASIC, Inc – SDLC COMMUNICATIONS CONTROLLER

IA8044/IA8344
SDLC COMMUNICATIONS CONTROLLER
Preliminary Data Sheet
As of Production Version 00
External Data Memory Characteristics
Symbol
Parameter
TRLRH
TWLWH
TLLAX
TRLDV
TRHDX
TRHDZ
TLLDV
TAVDV
TLLWL
TAVWL
TQVWX
TQVWH
TWHQX
TRLAZ
TWHLH
RDn Pulse Width
WRn Pulse Width
Address Hold After ALE
RDn Low to Valid Data In.
Data Hold After RDn
Data Float After RDn
ALE Low to Valid Data In
Address to Valid Data In.
ALE Low to RDn or WRn Low
Address to RDn or WRn Low
Data Valid to WRn Transistion
Data Setup Before WRn High
Data Held After WRn
RDn Low to Address Float
RDn or WRn High to ALE High
12 MHz Osc
Variable Clock 1/TCLCL =
3.5 MHz TO 12 MHz
Unit
Min Max
Min
Max
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Serial Interface Characteristics
Symbol
Parameter
TDCY Data Clock
TDCL Data Clock Low
TDCH Data Clock High
tTD Transmit Data Delay
tDSS Data Setup Time
tDHS Data Hold Time
Min Max Unit
ns
ns
ns
ns
ns
ns
Copyright © 2001
innovASIC
The End of Obsolescence™
ENG210010112-00
Page 27 of 32
www.innovasic.com
Customer Support:
1-888-824-4184