xr16m681 Exar Corporation, xr16m681 Datasheet - Page 44

• Manufacturer Part Number: xr16m681
• Description: 1.62v To 3.63v Uart With 32-byte Fifo And Vlio Interface
• Manufacturer: Exar Corporation

XR16M681
1.62V TO 3.63V UART WITH 32-BYTE FIFO AND VLIO INTERFACE
AC ELECTRICAL CHARACTERISTICS
TA = -40
F
F
IGURE
IGURE
S
YMBOL
T
T
T
Bclk
T
RST
SRT
WT
RR
I O W #
I O W
R T S #
D T R #
C D #
C T S #
D S R #
I N T
I O R #
R I #
EXTERNAL
CLOCK
15. C
16. M
O
TO
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
+85
LOCK
ODEM
O
C, V
T
I
NPUT
IMING
CC IS
P
ARAMETER
/O
C h a n g e o f s t a t e
UTPUT
1.62
A c t iv e
TO
CLK
T
IMING
3.6V, 25
OSC
T
T
P
M O D
W D O
F
C h a n g e o f s t a t e
LOAD WHERE APPLICABLE
M
CLK
40
1.8V ± 10%
IN
L
C h a n g e o f s t a t e
44
IMITS
M
A c t iv e
A c t iv e
45
45
8
AX
16X or 8X or 4X of data rate
M
40
2.5V ± 10%
IN
T
R S I
L
IMITS
T
C h a n g e o f s t a t e
M
M O D
A c t iv e
A c t iv e
45
45
8
AX
M
40
3.3V ± 10%
IN
C h a n g e o f s t a t e
L
IMITS
T
M O D
A c t iv e
M
A c t iv e
45
45
8
AX
REV. 1.0.0
U
Bclk
Hz
ns
ns
ns
NIT