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ST16C2450CQ48TR-F

Description
IC UART 2.97V - 5.5V 48TQFP
Categorysemiconductor    Analog mixed-signal IC   
File Size287KB,30 Pages
ManufacturerMaxLinear Inc.
Environmental Compliance
Download Datasheet Parametric View All

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ST16C2450CQ48TR-F Overview

IC UART 2.97V - 5.5V 48TQFP

ST16C2450CQ48TR-F Parametric

Parameter NameAttribute value
characteristicInternal oscillator, timer/counter
Number of channels2,DUART
FIFO1 byte
protocolRS232
Data rate (maximum)1.5Mbps
Voltage - Power2.97 V ~ 5.5 V
With automatic flow control-
With IrDA encoder/decoder-
With false start bit detectionyes
with modem controlyes
Installation typesurface mount
Package/casing48-TQFP
Supplier device packaging48-TQFP(7x7)
xr
MAY 2005
ST16C2450
2.97V TO 5.5V DUART
REV. 4.0.1
GENERAL DESCRIPTION
The ST16C2450 (2450) is a dual universal asynchro-
nous receiver and transmitter (UART). The
ST16C2450 is an improved version of the
ST16C2450 with lower operating voltage and 5 volt
tolerant inputs. The 2450 provides enhanced UART
functions, a modem control interface and data rates
up to 1.5 Mbps. Onboard status registers provide the
user with error indications and operational status. In-
dependent programmable baud rate generators are
provided to select transmit and receive clock rates up
to 1.5 Mbps. An internal loopback capability allows
onboard diagnostics. The 2450 is available in a 44-
pin PLCC and 48-pin TQFP packages. The 2450 is
fabricated in an advanced CMOS process capable of
operating from 2.97 volt to 5.5 volt power supply. The
devices with a top marking of "A2 YYWW" or newer
have 5 volt tolerant inputs.
APPLICATIONS
Portable Appliances
Telecommunication Network Routers
Ethernet Network Routers
Cellular Data Devices
Factory Automation and Process Controls
F
IGURE
1. ST16C2450 B
LOCK
D
IAGRAM
FEATURES
Added feature in devices with top marking "A2
YYWW" and newer:
5 Volt Tolerant Inputs
2.97 to 5.5 Volt Operation
Pin-to-pin compatible to Exar’s XR16C2450,
ST16C2550,
XR16C2850
XR16L2550,
XR16L2750
and
2 independent UART channels
Up to 1.5 Mbps data rate with a 24 MHz crystal
oscillator or external clock frequency
1 byte Transmit FIFO
1 byte Receive FIFO with error tags
Status report registers
Modem control signals (CTS#, RTS#, DSR#,
DTR#, RI#, CD#)
Programmable character lengths (5, 6, 7, 8)
with even, odd, or no parity
Crystal oscillator or external clock input
TTL compatible inputs, outputs
Industrial temperature ranges
48-TQFP and 44-PLCC packages
*5V Tolerant inputs
2.97 to 5.5 Volt VCC
A2:A0
D7:D0
IOR#
IOW#
CSA#
CSB#
INTA
INTB
8-bit Data
Bus
Interface
UART Channel A
UART
Regs
THR
RHR
Modem I/Os
TXA
RXA
RTSA#, CTSA#,
DTRA#, DSRA#,
CDA#, RIA#, OP2A#
TXB
RXB
RTSB#, CTSB#,
DTRB#, DSRB#,
CDB#, RIB#, OP2B#
XTAL1
XTAL2
BRG
UART Channel B
(same as Channel A)
Reset
Crystal Osc/Buffer
Exar
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com
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