ST16C654D Exar Corporation, ST16C654D Datasheet - Page 38
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ST16C654D
Manufacturer Part Number
ST16C654D
Description
St16c654d -quad Uart With 64-byte Fifo And Infrared Irda Encoder/decoder
Manufacturer
Exar Corporation
Datasheet
1.ST16C654D.pdf
(51 pages)
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ST16C654/654D
2.97V TO 5.5V QUAD UART WITH 64-BYTE FIFO
AC ELECTRICAL CHARACTERISTICS
TA=0
S
T
T
T
T
T
T
T
YMBOL
T
T
T
T
T
OSC
OSC
T
CLK
T
T
T
T
T
T
T
T
T
T
T
WDH
RWH
WDO
ADH
RWS
WDS
MOD
RDV
ADS
RDA
RDH
CSD
CSL
WR
RSI
AS
AH
CS
RD
DY
DD
DY
DS
DH
O
TO
70
Clock Pulse Duration
Crystal 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)
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
Delay To Set Interrupt From MODEM Input
Delay To Reset Interrupt From IOR#
O
C (-40
O
TO
+85
P
O
ARAMETER
C
FOR INDUSTRIAL GRADE PACKAGE
38
M
40
10
66
50
50
40
50
20
15
10
15
10
20
10
10
66
70
IN
5
0
L
IMITS
3.3
), V
CC IS
M
24
45
30
35
25
50
50
50
8
AX
2.97
M
IN
30
50
30
50
30
50
15
10
10
15
10
15
10
10
50
70
5
5
0
TO
L
IMITS
5.0
5.5V
24
32
35
20
25
15
50
35
35
M
AX
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
ns
ns
NIT
xr
100 pF load
100 pF load
100 pF load
C
ONDITIONS
REV. 5.0.2