xr16l2550im Exar Corporation, xr16l2550im Datasheet - Page 35

• Manufacturer Part Number: xr16l2550im
• Description: Industry Smallest Package Uart With 2.25v To 5.5v Operation
• Manufacturer: Exar Corporation

REV. 1.1.2
AC ELECTRICAL CHARACTERISTICS
U
70
S
NLESS OTHERWISE NOTED
T
T
YMBOL
T
T
T
OSC
T
P
CLK
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
WDO
MOD
RDV
WRI
SSR
SRT
F
WR
RSI
SSI
RRI
INT
AH
RD
DD
DH
RR
WT
AS
CS
DY
DY
DS
-
SI
LOAD WHERE APPLICABLE
Crystal Frequency
External Clock Low/High Time
External Clock Frequency
Address Setup Time
Address Hold Time
Chip Select Width
IOR# Strobe Width
Read Cycle Delay
Data Access Time
Data Disable Time
IOW# Strobe Width
Write Cycle Delay
Data Setup Time
Data Hold Time
Delay From IOW# To Output
Delay To Set Interrupt From MODEM Input
Delay To Reset Interrupt From IOR#
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#
: TA=-40
P
ARAMETER
O
TO
+85
O
C, V
CC IS
35
M
2.25V
150
150
150
150
150
31
10
10
25
15
IN
0
8
L
IMITS
2.5
TO
LOW VOLTAGE DUART WITH 16-BYTE FIFO
125
150
150
150
150
150
150
150
150
M
16
16
45
24
5.5V,
1
1
8
AX
M
17
10
10
75
75
75
75
75
20
10
IN
0
8
L
IMITS
3.3
M
20
30
70
30
75
75
75
75
75
24
75
75
75
1
1
8
AX
M
IN
10
10
10
50
50
50
50
50
15
10
0
8
L
IMITS
5.0
XR16L2550
24
50
45
30
50
50
50
50
50
24
50
50
50
M
1
1
8
AX
U
MHz
MHz
Bclk
Bclk
Bclk
Bclk
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NIT