ST16C2550IQ48-F Exar Corporation, ST16C2550IQ48-F Datasheet - Page 32

• Manufacturer Part Number: ST16C2550IQ48-F
• Description: IC DUART FIFO 16B 48TQFP
• Manufacturer: Exar Corporation
• Type: RS- 232 or RS- 485r

Specifications of ST16C2550IQ48-F

• Number Of Channels: 2, DUART
• Package / Case: 48-TQFP
• Features: *
• Fifo's: 16 Byte
• Protocol: RS232, RS485
• Voltage - Supply: 2.97 V ~ 5.5 V
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• With Cmos: Yes
• Mounting Type: Surface Mount
• Data Rate: 4 Mbps
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.97 V
• Supply Current: 3 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V or 5 V
• No. Of Channels: 2
• Supply Voltage Range: 2.97V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: TQFP
• No. Of Pins: 48
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 1016-1256

ST16C2550
2.97V TO 5.5V DUART WITH 16-BYTE FIFO
F
F
IGURE
IGURE
RX
INT
RXRDY#
IOR#
(Reading data out
of RX FIFO)
(Unloading)
(Loading data
*INT is cleared when the ISR is read or when there is at least one character in the FIFO.
20. R
21. T
into FIFO)
TX
INT*
TXRDY#
IOW#
RANSMIT
ECEIVE
TX FIFO
Empty
enabled
IER[1]
Start
Bit
S
TX FIFO
Data in
D0:D7
R
R
EADY
Trigger Level or RX Data
EADY
RX FIFO fills up to RX
Stop
Bit
S
& I
Start
Timeout
D0:D7
& I
Bit
ISR is read
S
NTERRUPT
T
D0:D7
NTERRUPT
T
WT
WRI
T
Stop
Bit
T
T
D0:D7
longer empty
TX FIFO no
IMING
T
T
SSI
S
IMING
D0:D7
[FIFO M
S
[FIFO M
T
SSR
D0:D7
T
S
32
D0:D7
ODE
T
ODE
, DMA E
T
S
, DMA M
D0:D7
T
S
D0:D7
NABLED
T
ODE
S
T
RRI
D0:D7
T
D
S
]
ISABLED
FOR
D0:D7
T
RX FIFO drops
Trigger Level
C
below RX
S
HANNELS
T
]
D0:D7
FOR
T
SI
Empties
T
C
T
FIFO
RR
S
Last Data Byte
HANNELS
Transmitted
A & B
RXFIFODMA
D0:D7
TXDMA#
TX FIFO
Empty
T
SRT
T
REV. 4.4.1
A & B