XR16C854IV-F Exar Corporation, XR16C854IV-F Datasheet - Page 30

• Manufacturer Part Number: XR16C854IV-F
• Description: IC UART FIFO 128B QUAD 64LQFP
• Manufacturer: Exar Corporation
• Type: Quad UART with 128-byte FIFOsr

Specifications of XR16C854IV-F

• Number Of Channels: 4, QUART
• Package / Case: 64-LQFP
• Features: *
• Fifo's: 128 Byte
• Protocol: RS232, RS485
• Voltage - Supply: 2.97 V ~ 5.5 V
• With Auto Flow Control: Yes
• With Irda Encoder/decoder: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• With Cmos: Yes
• Mounting Type: Surface Mount
• Data Rate: 2 Mbps
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.97 V
• Supply Current: 3 mA to 6 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 45 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 2.97 V to 5.5 V
• No. Of Channels: 4
• Uart Features: Tx/Rx FIFO Counters
• Supply Voltage Range: 2.97V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: LQFP
• 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: 1016-1276

XR16C854/854D
2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO
The Line Control Register is used to specify the asynchronous data communication format. The word or
character length, the number of stop bits, and the parity are selected by writing the appropriate bits in this
register.
LCR[1:0]: TX and RX Word Length Select
These two bits specify the word length to be transmitted or received.
LCR[2]: TX and RX Stop-bit Length Select
The length of stop bit is specified by this bit in conjunction with the programmed word length.
4.6
FCTR
B
IT
1
1
-5
Line Control Register (LCR) - Read/Write
FCTR
B
IT
0
1
-4
B
FCR
IT
X
0
0
1
1
-7
T
ABLE
B
FCR
IT
0
1
0
1
X
11: T
-6
BIT-1
BIT-2
RANSMIT AND
0
0
1
1
0
1
1
B
FCR
IT
X
0
0
1
1
-5
BIT
FCR
0
1
0
1
X
LENGTH
BIT-0
5,6,7,8
-4
W
6,7,8
0
1
0
1
R
ORD
5
ECEIVE
T
Programmable
FCTR[7] = 0.
RIGGER
R
via TRG
register.
30
ECEIVE
16
56
60
FIFO T
8
L
EVEL
S
W
TOP BIT LENGTH
(B
RIGGER
5 (default)
ORD LENGTH
1 (default)
IT TIME
Programmable
FCTR[7] = 1.
1-1/2
6
7
8
T
2
T
via TRG
register.
RANSMIT
RIGGER
L
EVEL
16
32
56
L
(
8
S
EVEL
))
S
ELECTION
Table-C. 16C654 compatible.
Table-D. 16L2750, 16C2850,
16C2852, 16C850, 16C864
compatible.
C
OMPATIBILITY
xr
REV. 3.0.1