xr16c2852ij Exar Corporation, xr16c2852ij Datasheet - Page 41

• Manufacturer Part Number: xr16c2852ij
• Description: 2.97v To 5.5v Dual Uart With 128-byte Fifos
• Manufacturer: Exar Corporation

xr
REV. 2.1.1
AC ELECTRICAL CHARACTERISTICS
TA=0
WHERE APPLICABLE
S
T
T
YMBOL
T
T
OSC
OSC
T
CLK
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
WDO
MOD
RDV
SSR
WRI
WR
RSI
RRI
AH
AH
RD
DD
DH
SSI
INT
RR
WT
AS
CS
DY
DY
DS
SI
O
TO
70
Clock Pulse Duration
Oscillator Frequency
External Clock Frequency
Address Setup Time
Address Hold Time (AS# tied to GND)
(top mark date code of "DC YYWW" and older)
Address Hold Time (AS# tied to GND)
(top mark date code of "F2 YYWW" and newer)
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#
O
C (-40
O
TO
+85
P
ARAMETER
O
C
FOR INDUSTRIAL GRADE PACKAGE
41
2.97V TO 5.5V DUAL UART WITH 128-BYTE FIFOS
M
30
10
10
66
35
40
40
40
10
10
IN
0
0
8
L
IMITS
3.3
M
33
50
35
50
40
40
45
45
24
45
45
45
8
1
1
AX
), V
M
IN
CC IS
20
50
25
30
25
30
5
5
0
0
5
5
8
L
IMITS
5.0
2.97V
24
50
35
25
40
35
35
40
40
24
40
40
40
M
1
1
AX
TO
U
MHz
MHz
Bclk
Bclk
Bclk
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5.5V, 70
NIT
100 pF load
100 pF load
100 pF load
100 pF load
XR16C2852
C
ONDITIONS
P
F L
OAD