![](http://datasheet.mmic.net.cn/Exar-Corporation/XR16M698IQ100-F_datasheet_100044/XR16M698IQ100-F_50.png)
XR16M698
50
1.62V TO 3.63V HIGH PERFORMANCE OCTAL UART WITH 32-BYTE FIFO
REV. 1.0.0
AC ELECTRICAL CHARACTERISTICS
TA=0o to 70oC (-40o to +85oC for industrial grade package), Vcc is 1.62V to 3.63V, 70 pF Load where
applicable
SYMBOL
PARAMETER
1.8V
MIN
1.8V
MAX
2.5V
MIN
2.5V
MAX
3.3V
MIN
3.3V
MAX
UNITS
TC1,TC2 Clock Pulse Period
18
10
7
ns
TOSC
Crystal Frequency
15
24
MHz
TECK
External Clock Frequency
15
40
60
MHz
TAS
Address Setup (16 Mode)
3
ns
TAH
Address Hold (16 Mode)
3
ns
TCS
Chip Select Width (16 Mode)
90
40
35
ns
TDY
Delay between CS# Active Cycles (16 Mode)
90
40
35
ns
TRD
Read Strobe Width (16 Mode)
90
40
35
ns
TWR
Write Strobe Width (16 Mode)
90
40
35
ns
TRDV
Read Data Valid (16 Mode)
85
35
30
ns
TWDS
Write Data Setup (16 Mode)
5
ns
TRDH
Read Data Hold (16 Mode)
10
ns
TWDH
Write Data Hold (16 Mode)
7
ns
TADS
Address Setup (68 Mode)
3
ns
TADH
Address Hold (68 Mode)
3
ns
TRWS
R/W# Setup to CS# (68 Mode)
3
ns
TRDA
Read Data Access (68 mode)
85
35
30
ns
TRDH
Read Data Hold (68 mode)
10
ns
TWDS
Write Data Setup (68 mode)
5
ns
TWDH
Write Data Hold (68 Mode)
7
ns
TRWH
CS# De-asserted to R/W# De-asserted (68
Mode)
3
ns
TCSL
CS# Width (68 Mode)
90
40
35
ns
TCSD
CS# Cycle Delay (68 Mode)
90
40
35
ns
TWDO
Delay from IOW# to Modem Output
50
ns
TMOD
Delay to set Interrupt from Modem Input
50
ns
TRSI
Delay To Reset Interrupt From IOR#
50
ns
TSSI
Delay From Stop To Set Interrupt
1
Bclk