XR16L2751CM EXAR [Exar Corporation], XR16L2751CM Datasheet - Page 41

• Manufacturer Part Number: XR16L2751CM
• Description: 2.25V TO 5.5V DUART WITH 64-BYTE FIFO AND POWERSAVE
• Manufacturer: EXAR [Exar Corporation]

XR16L2751
2.25V TO 5.5V DUART WITH 64-BYTE FIFO AND POWERSAVE
REV. 1.0.0
asleep. Floating inputs may result in sleep currents in the mA range. For Powersave, the UART internally
isolates all of these inputs therefore not requiring them to remain steady.
AC ELECTRICAL CHARACTERISTICS
TA=0
S
T
T
T
T
T
T
YMBOL
T
T
T
T
OSC
OSC
T
T
T
CLK
T
T
T
T
T
T
T
T
T
T
WDS
WDH
RWH
WDO
MOD
ADS
ADH
RWS
RDH
RDV
RDA
CSD
CSL
WR
AH
AS
CS
RD
DD
DS
DH
DY
DY
O
TO
70
Clock Pulse Duration
Oscillator Frequency
External Clock Frequency
Address Setup Time (16 Mode)
Address Hold Time (16 Mode)
Chip Select Width (16 Mode)
IOR# Strobe Width (16 Mode)
Read Cycle Delay (16 Mode)
Data Access Time (16 Mode)
Data Disable Time (16 Mode)
IOW# Strobe Width (16 Mode)
Write Cycle Delay (16 Mode)
Data Setup Time (16 Mode)
Data Hold Time (16 Mode)
Address Setup (68 Mode)
Address Hold (68 Mode)
R/W# Setup to CS# (68 Mode)
Read Data Access (68 mode)
Read Data Hold (68 mode)
Write Data Setup (68 mode)
Write Data Hold (68 Mode)
CS# De-asserted to R/W# De-
asserted (68 Mode)
CS# Width (68 Mode)
CS# Cycle Delay (68 Mode)
Delay From IOW# To Output
Delay To Set Interrupt From
MODEM Input
O
C (-40
P
ARAMETER
O
TO
+85
O
C
FOR INDUSTRIAL GRADE PACKAGE
M
50
15
50
50
40
50
15
15
15
15
50
35
15
15
15
50
50
15
66
15
IN
0
L
IMITS
2.5
M
16
24
50
35
50
50
AX
41
M
50
10
10
66
35
40
40
40
10
10
10
10
10
45
30
10
10
10
40
40
IN
0
L
IMITS
3.3
M
20
33
50
35
50
40
AX
), V
CC IS
M
IN
17
50
25
30
25
30
35
25
30
30
5
0
5
5
5
5
5
5
5
5
5
L
IMITS
5.0
2.5- 5.0V +/-10%
24
50
35
25
40
35
M
AX
U
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NIT
áç
áç
áç
áç
100 pF load
100 pF load
C
ONDITIONS