xr16m2551im48 Exar Corporation, xr16m2551im48 Datasheet - Page 40

• Manufacturer Part Number: xr16m2551im48
• Description: High Performance Low Voltage Duart With 16-byte Fifo And Powersave Feature
• Manufacturer: Exar Corporation

XR16M2551
HIGH PERFORMANCE LOW VOLTAGE DUART WITH 16-BYTE FIFO AND POWERSAVE FEATURE
AC ELECTRICAL CHARACTERISTICS
Unless otherwise noted: TA = -40
F
S
IGURE
T
YMBOL
T
T
T
T
T
T
T
Bclk
T
T
SSR
WRI
SRT
RST
RRI
SSI
INT
WT
RR
SI
External
Clock
13. C
Delay From Stop To Set Interrupt
Delay From IOR# To Reset Interrupt
Delay From Stop To Interrupt
Delay From Initial INT Reset To Transmit Start
Delay From IOW# To Reset Interrupt
Delay From Stop To Set RXRDY#
Delay From IOR# To Reset RXRDY#
Delay From IOW# To Set TXRDY#
Delay From Center of Start To Reset TXRDY#
Reset Pulse Width
Baud Clock
LOCK
VIH
VIL
T
IMING
P
ARAMETER
o
to +85
o
C, Vcc=1.62 - 3.63V, 70 pF load where applicable
T
ECH
40
T
M
ECLK
1.8V ± 10%
IN
40
8
L
IMITS
45
45
24
45
45
45
16X or 8X or 4X of data rate
M
1
1
8
AX
M
2.5V ± 10%
IN
40
8
T
L
ECL
IMITS
45
45
24
45
45
45
M
1
1
8
AX
M
3.3V ± 10%
IN
40
8
L
IMITS
45
45
24
45
45
45
M
1
1
8
REV. 1.0.2
AX
U
Bclk
Bclk
Bclk
Bclk
Hz
ns
ns
ns
ns
ns
ns
NIT