xr16c864iq Exar Corporation, xr16c864iq Datasheet - Page 41

• Manufacturer Part Number: xr16c864iq
• Description: Quad Uart With Rx/tx Fifo Counters And 128-byte Fifo
• Manufacturer: Exar Corporation

áç
áç
REV. 2.0.1
AC ELECTRICAL CHARACTERISTICS
TA=0
áç
áç
S
TWDO
TRWS
TRWH
TMOD
TRDH
TCSD
TRDV
T
T
TCSL
T
TRRI
YMBOL
OSC
OSC
TWR
T
T
TRSI
TSSI
TRD
TDD
TDH
CLK
T CS
TDY
TDY
TDS
T AS
T AH
WDS
WDH
ADH
ADS
RDA
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# Strobe 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
O
C (-40
O
TO
+85
P
O
ARAMETER
C
FOR INDUSTRIAL GRADE PACKAGE
41
2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO
M
20
10
10
66
35
40
35
40
10
10
10
15
10
15
15
20
10
10
40
70
IN
0
L
IMITS
3.3
), V
CC IS
M
35
50
40
40
24
25
40
8
1
AX
2.97
M
IN
15
50
25
30
25
30
10
15
15
15
15
10
10
40
70
5
5
0
5
5
5
TO
L
IMITS
5.0
5.5V
24
32
25
15
40
35
40
M
35
1
AX
U
MHz
MHz
Bclk
ns
ns
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
100 pF load
100 pF load
100 pF load
100 pF load
C
XR16C864
ONDITIONS