ST16C2550CJ44-F Exar Corporation, ST16C2550CJ44-F Datasheet - Page 31

• Manufacturer Part Number: ST16C2550CJ44-F
• Description: IC DUART FIFO 16B 44PLCC
• Manufacturer: Exar Corporation
• Type: RS- 232 or RS- 485r

Specifications of ST16C2550CJ44-F

• Number Of Channels: 2, DUART
• Package / Case: 44-LCC (J-Lead)
• 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: + 70 C
• Minimum Operating Temperature: 0 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: 0°C To +70°C
• Digital Ic Case Style: PLCC
• No. Of Pins: 44
• 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: 1016-1254-5

REV. 4.4.1
F
F
IGURE
IGURE
RXRDY#
RX
INT
IOR#
(Reading data out
of RX FIFO)
(Unloading)
INT*
TXRDY#
IOW#
(Loading data
into THR)
TX
*INT is cleared when the ISR is read or when data is loaded into the THR.
18. T
19. R
IER[1]
enabled
RANSMIT
ECEIVE
T
First Byte is
Received in
WRI
RX FIFO
Start
Bit
S
D0:D7
R
T
Start
Stop
WT
R
Bit
Bit
EADY
EADY
S
ISR is read
& I
T
SSR
T
& I
D0:D7
D0:D7
SRT
NTERRUPT
NTERRUPT
T
T
WRI
Trigger Level or RX Data
Stop
RX FIFO fills up to RX
Bit
T
D0:D7
T
T
IMING
SSI
T
Timeout
IMING
WT
[FIFO M
S
[N
ISR is read
D0:D7
T
ON
D0:D7
SRT
31
-FIFO M
ODE
T
, DMA D
S
2.97V TO 5.5V DUART WITH 16-BYTE FIFO
D0:D7
ODE
]
FOR
T
ISABLED
S
T
T
WRI
RRI
C
D0:D7
HANNELS
]
T
FOR
T
WT
RX FIFO drops
Trigger Level
below RX
S
C
A & B
D0:D7
HANNELS
ISR is read
D0:D7
T
SRT
Empties
T
T
FIFO
RR
TXNonFIFO
ST16C2550
RXINTDMA#
A & B