xr16m780 Exar Corporation, xr16m780 Datasheet - Page 46

• Manufacturer Part Number: xr16m780
• Description: 1.62v To 3.63v High Performance Uart With 64-byte Fifo
• Manufacturer: Exar Corporation

XR16M780
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 64-BYTE FIFO
PAGE 23.
supply.
AC ELECTRICAL CHARACTERISTICS
TA = -40
S
XTAL1
T
ECLK
T
T
T
T
T
YMBOL
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
ECLK
WDH
RWH
WDO
ADH
RWS
RDH
WDS
RDV
ADS
RDA
CSD
CSL
WR
AS
AH
CS
RD
DY
DD
DY
DS
DH
O
To achieve minimum power drain, the voltage at any of the inputs of the M780 should NOT be lower than its VCC
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
+85
O
C, V
CC IS
P
ARAMETER
1.62
TO
3.6V, 70
P
F
LOAD WHERE APPLICABLE
M
15
90
90
90
90
90
30
15
90
90
1.8V ± 10%
0
0
3
5
0
0
3
3
IN
L
46
IMITS
M
24
30
85
25
85
15
50
AX
M
60
60
60
60
60
15
10
60
60
2.5V ± 10%
9
0
0
3
0
0
0
3
3
IN
L
IMITS
M
24
50
55
10
55
15
50
AX
M
35
35
35
35
35
10
10
35
35
3.3V ± 10%
IN
7
0
0
3
0
0
0
3
3
L
IMITS
M
24
64
30
30
15
50
5
AX
REV. 1.0.0
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
NIT