xr16m752im48 Exar Corporation, xr16m752im48 Datasheet - Page 40

• Manufacturer Part Number: xr16m752im48
• Description: Xr68m752 -high Performance Duart With 64-byte Fifo
• Manufacturer: Exar Corporation

XR16M752/XR68M752
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
AC ELECTRICAL CHARACTERISTICS
Unless otherwise noted: TA=-40
S
T
T
T
T
T
T
T
YMBOL
T
T
T
T
T
T
T
T
T
T
T
T
T
T
Bclk
T
T
RWS
WDS
WDH
RWH
WDO
MOD
T
ADH
RDH
ADS
RDA
CSD
SSR
SRT
RST
CSL
WRI
RSI
RRI
SSI
INT
WT
DH
RR
SI
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 Disable (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
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#
Reset Pulse Width
Baud Clock
P
ARAMETER
o
to +85
o
C, Vcc=1.62 - 3.63V, 70 pF load where applicable
40
M
1.8V ± 10%
IN
15
60
60
40
5
5
0
5
5
5
8
L
IMITS
16X or 8X or 4X of data rate
M
55
20
50
50
50
45
45
24
45
45
45
1
1
8
AX
M
2.5V ± 10%
IN
10
30
30
40
5
5
0
5
5
5
8
L
IMITS
M
25
20
50
50
50
45
45
24
45
45
45
1
1
8
AX
M
3.3V ± 10%
IN
10
30
30
40
5
5
0
5
5
5
8
L
IMITS
M
25
10
50
50
50
45
45
24
45
45
45
1
1
8
AX
REV. 1.0.2
U
Bclk
Bclk
Bclk
Bclk
Hz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NIT