XR16L580IMTRF Exar Corporation, XR16L580IMTRF Datasheet - Page 45

• Manufacturer Part Number: XR16L580IMTRF
• Description: QFP
• Manufacturer: Exar Corporation

Specifications of XR16L580IMTRF

• Date_code: 08+

XR16L580
SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
REV. 1.4.2
F
23. T
R
I
T
[FIFO M
]
IGURE
RANSMIT
EADY
NTERRUPT
IMING
ODE
Stop
Start
Last Data Byte
TX FIFO
Bit
Bit
Transmitted
Empty
TX
D0:D7
D0:D7
D0:D7
T
D0:D7
D0:D7
D0:D7
S
S
S
S
T
S
T
S
T
T
T
T
ISR is read
T
IER[1]
ISR is read
SI
enabled
INT*
TX FIFO fills up
TX FIFO drops
to trigger level
below trigger level
T
WRI
IOW#
(Loading data
into FIFO)
TX INT
*INT is cleared when the ISR is read or when TX FIFO fills up to the trigger level.
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