COM20051 Datasheet, PDF (79/82 Pages) List of Unclassifed Manufacturers – Integrated Microcontroller and ARCNET (ANSI 878.1) Interface

XTAL1
t1
t2
t3
Parameter
t1 Input Clock High Time
t2 Input Clock Low Time
t3 Input Clock Period
t4 Input Clock Frequency
min typ max units
10
nS
10
nS
25
125 ^nS
10
40 MHz
FIGURE 29 – TTL INPUT TIMING ON XTAL1 PIN
nRESET IN
t1
nINTR
t2
Parameter
t1 nRESET IN Pulse Width
t2 nINTR High to Next nINTR Low
min typ
3.2
*200
max units
µS
nS
Note: For 5 Mbps operation, t2 is 100 nS.
FIGURE 30 – RESET AND INTERRUPT TIMING
79