st16c554 Exar Corporation, st16c554 Datasheet - Page 30

• Manufacturer Part Number: st16c554
• Description: Quad Uart With 16-byte Fifos
• Manufacturer: Exar Corporation

ST16C554/554D
2.97V TO 5.5V QUAD UART WITH 16-BYTE FIFO
F
F
IGURE
IGURE
A0-A7
D0-D7
R/W#
CS#
14. 16 M
D0-D7
15. 68 M
A0-A7
IOW#
CS#
ODE
ODE
(I
(M
NTEL
T
T
OTOROLA
AS
RWS
T
T
RDA
ADS
) D
ATA
Valid Address
) D
Valid Address
B
T
WR
ATA
T
US
CS
Valid Data
T
DS
W
T
B
CSL
Valid Data
RITE
US
R
T
EAD
IMING FOR
T
T
T
T
DH
RWH
AH
IMING FOR
30
T
T
ADH
RDH
T
C
DY
HANNELS
T
CSD
C
HANNELS
T
AS
A-D
A-D
Valid Address
T
CS
T
WR
T
Valid Data
Valid Address
DS
Valid Data
T
T
DH
AH
16Write
68Read
REV. 4.0.1