108048/8748/8035L

A.C. CHARACTERISTICS

TA= -40·Cto +85·C, Vcc=5V ±10%, Vss=OV

 

 

 

 

Symbol

Parameter

Min.

Max.

Unit

Test Condilions

top

Port Control Setup Before Failing Edge of PROG

115

 

ns

 

tpc

Port Control Hold After Failing Edge of PROG

65

 

ns

 

tPA

PROG to Time P2 Input Must Be Valid

 

860

ns

 

tpF

Input Data Hold Time

0

160

ns

 

top

Output Data Setup Time

230

 

ns

 

tpo

Output Data Hold Time

25

 

ns

 

tpp

PROG Pulse Width

920

 

ns

 

tpL

Port 2 I/O Data Setup

300

 

ns

 

tLP

Port 2 I/O Data Hold

120

 

ns

 

PORT 2 TIMING

ALE

EXPANDER

PORT

OUTPUTPCH

EXPANDER

PORT

INPUTPCH

PROG

6-23

AFN-00860A-tl8

Page 166
Image 166
Intel mcs-48 Characteristics, TA= -40·Cto +85·C, Vcc=5V ±10%, Vss=OV, Top Port Control Setup Before Failing Edge of Prog