ICS2008B
AC Electrical Characteristics
±
TA = 0°C to +70°C; VDD = 5V 10%; GND = 0V
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
Address setup to IOR* or IOW* command
Address hold from IOR* or IOW* command
Read pulse width
20
10
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
t
t
ACS
AH
RD
150
Access time
150
50
t
ACC
Output enable access time
Data hold from IOR* high
Read command inactive time
Write pulse width
t
OE
10
70
t
RDH
t
RHRL
WR
WDS
WDH
WHWL
CHCL
150
20
t
Write data setup to IOW* high
Write data hold from IOW* high
Write command inactive time
CS* inactive time (Note 1)
t
10
t
70
t
20
t
UART Port Bit Rate
UART Port Bit Rate
UART Port Bit Rate
(Command Register [1:0] = 00)
(Command Register [1:0] = 01)
(Command Register [1:0] = 10)
9.6
31.25
38.4
kHz
kHz
kHz
Notes:
1. This timing parameter must be met for proper operation of indirect register access using auto-increment.
FIGURE 3 — Host Processor Bus Timing
ICS2008B
14
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
