xr16m654 Exar Corporation, xr16m654 Datasheet - Page 43

• Manufacturer Part Number: xr16m654
• Description: 1.62v To 3.63v Quad Uart With 64-byte Fifo
• Manufacturer: Exar Corporation

REV. 1.0.0
AC ELECTRICAL CHARACTERISTICS
TA = -40
S
XTAL1
T
ECLK
T
T
T
T
T
T
T
T
T
T
T
YMBOL
T
T
T
T
T
T
T
T
T
T
T
T
ECLK
WDH
RWH
WDO
ADH
RWS
WDS
MOD
RDV
ADS
RDA
RDH
CSD
CSL
WR
AS
AH
CS
RD
DY
DD
DY
DS
DH
O
TO
UART Crystal Frequency
External Clock Frequency
External Clock Time Period
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)
Data Access Time (68 mode)
Data Disable Time (68 mode)
Write Data Setup (68 mode)
Write Data Hold (68 Mode)
CS# De-asserted to R/W# De-
asserted (68 Mode)
CS# Strobe Width (68 Mode)
CS# Cycle Delay (68 Mode)
Delay From IOW# To Output
Delay To Set Interrupt From MODEM
Input
+85
O
C, V
CC IS
P
ARAMETER
1.62
TO
3.63V, 70
P
F
M
100
100
100
100
100
100
100
LOAD WHERE APPLICABLE
15
15
15
1.8V ± 10%
0
0
3
0
0
0
3
3
IN
L
43
IMITS
1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO
M
24
32
95
15
95
15
50
50
AX
M
10
65
65
65
65
65
10
10
65
65
2.5V ± 10%
0
0
3
0
0
0
5
3
IN
L
IMITS
M
24
50
60
15
60
15
50
50
AX
M
XR16M654/654D
50
50
50
50
50
10
10
50
50
IN
3.3V ± 10%
7
0
0
3
0
0
0
5
3
L
IMITS
M
24
64
45
15
45
15
50
50
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