xr16c850im Exar Corporation, xr16c850im Datasheet - Page 43

• Manufacturer Part Number: xr16c850im
• Description: Uart With 128-byte Fifos And Infrared Irda Encoder/decoder
• Manufacturer: Exar Corporation

xr
REV. 2.3.1
AC ELECTRICAL CHARACTERISTICS
TA=0
APPLICABLE
S
TRDV
TDH1
TDS1
T
YMBOL
TWR
T
T
OSC
OSC
OSC
OSC
TRD
TDD
T
T
T
T
T
T
CLK
TAH
TAH
TCS
TDY
TAS
ASW
AS1
AH1
AS2
AH2
CSH
RD1
CS1
CS2
O
TO
70
Clock Pulse Duration
Crystal Frequency (top mark date code "EC YYWW" and older)
Crystal Frequency (top mark date code "F2 YYWW" and newer)
External Clock Frequency
(top mark date code "EC YYWW" and older)
External Clock Frequency
(top mark date code "F2 YYWW" and newer)
Address Setup Time (AS# tied to GND)
Address Hold Time (AS# tied to GND)
(top mark date code of "EC 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/Write Cycle Delay
Data Access Time
Data Disable Time
IOW# Strobe Width
Data Setup Time (AS# tied to GND)
Data Hold Time (AS# tied to GND)
Address Strobe Width
Address Setup Time (AS# used)
Address Hold Time (AS# used)
Address Setup Time (AS# used)
Address Hold Time (AS# used)
Delay from Chip Select to AS#
Delay from AS# to Chip Select
Delay from AS# to Chip Select
Delay from AS# to Read
O
C (-40
O
TO
+85
O
C
FOR INDUSTRIAL GRADE PACKAGE
P
ARAMETER
43
2.97V TO 5.5V UART WITH 128-BYTE FIFO
), V
CC IS
M
45
10
75
75
75
75
20
75
10
10
10
10
IN
5
0
0
5
5
5
5
5
L
2.97V
3.3V
IMITS
M
16
22
22
35
25
8
TO
AX
5.5V, 70
M
IN
30
50
50
50
50
15
50
0
5
0
0
5
5
5
5
5
5
5
5
5
L
5.0V
IMITS
P
F L
24
24
33
36
25
15
M
XR16C850
OAD WHERE
AX
U
MHz
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NIT