OX16C950-TQBG OXFORD SEMICONDUCTOR, OX16C950-TQBG Datasheet - Page 6

• Manufacturer Part Number: OX16C950-TQBG
• Description: IC, UART, 1CH, SMD, TQFP48, 950
• Manufacturer: OXFORD SEMICONDUCTOR

Specifications of OX16C950-TQBG

• No. Of Channels: 1
• Data Rate: 15Mbps
• Uart Features: Tx/Rx FIFO INT TRIG
• Supply Voltage Range: 3V To 5.25V
• Operating Temperature Range: 0°C To +70°C
• Digital Ic Case Style: TQFP
• No. Of Pins: 48
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1
Deeper FIFOs:
OX16C950 offers 128-byte deep FIFOs for the transmitter
and receiver.
Higher data rates:
Transmission and reception baud rates up to 15Mbps. A
flexible clock prescaler offers division ratios of 1 to 31 7/8
in steps of 1/8 using a divide-by-“M N/8” circuitry. The
flexible prescaler allows users to select from a wide variety
of input clock frequencies as well as access to higher baud
rates whilst maintaining compatibility with existing software
drivers (see section 14.2).
External clock options:
The receiver can accept an external 1x clock on the DSR#
input. The transmitter can accept a 1x clock on the RI#
input and/or assert its own (Nx) clock on the DTR# output.
In 1x mode, asynchronous data may be transmitted and
received at speeds up to 60Mbps (see section 14.6).
Automatic flow control:
The UART automatically handles either or both in-band
(software) flow control (transmitting and receiving Xon/Xoff
characters) and out-of-band (hardware) flow control using
the RTS#/CTS# or DSR#/DTR# modem control lines.
DS-0031 Sep 05
OXFORD SEMICONDUCTOR LTD.
P
ERFORMANCE
Max baud rate in 1x clock mode
Max baud rate in normal mode
Readable status of flow control
No. of Rx interrupt thresholds
No. of Tx interrupt thresholds
No. of flow control thresholds
External 1x baud rate clock
Transmitter empty interrupt
Table 1 OX16C950 performance compared with 16C450, 16C550, 16C650 and 16C750 devices
Clock prescaler options
Auto DSR#/DTR# flow
Auto CTS#/RTS# flow
Readable FIFO levels
RS485 buffer enable
Auto Xon/Xoff flow
9-bit data frames
Infra-red (IrDA)
Software reset
Rx/Tx disable
Sleep mode
FIFO depth
Device ID
Feature
C
Improvements of the OX16C950 over previous generations of PC UART:
OMPARISON
OX16C950
15 Mbps
60 Mbps
Yes
128
Yes
Yes
Yes
Yes
127
128
128
Yes
Yes
Yes
248
Yes
Yes
Yes
Yes
Yes
Yes
External—Free Release
115 kbps
16C450
Special character detection:
The receiver can be programmed to generate an interrupt
upon reception of a particular character value.
Power-down:
The device can be placed in ‘sleep mode’ to conserve
power.
Readable FIFO levels:
Driver efficiency can be improved by using readable FIFO
levels.
Selectable trigger levels:
The
programmed. The transmitter FIFO threshold and
thresholds for automatic flow control can be programmed
to operate at a variety of trigger levels.
Additional control:
The transmitter and receiver can be independently
disabled.
No
n/a
No
No
No
No
n/a
No
n/a
n/a
n/a
No
No
No
No
No
No
1
1
1
receiver
115 kbps
16C550
n/a
No
No
n/a
n/a
No
No
No
No
No
No
No
No
No
No
No
No
16
4
1
FIFO
threshold
1.5 Mbps
16C650
Yes
Yes
Yes
Yes
n/a
No
No
No
No
No
No
No
No
No
No
32
4
4
4
2
OX16C950 rev B
can
16C750
1 Mbps
Yes
Yes
be
n/a
n/a
n/a
No
No
No
No
No
No
No
No
No
No
No
No
64
4
1
arbitrarily
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