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| 型號(hào)： | ST16C2450CQ-0B-EB |
| 廠商： | Exar Corporation |
| 文件頁(yè)數(shù)： | 1/30頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | EVAL BOARD FOR ST16C2450 48TQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | * |
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Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
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ST16C2450
2.97V TO 5.5V DUART
MAY 2005
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
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,
XR16L2550,
XR16L2750
and
XR16C2850
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
FIGURE 1. ST16C2450 BLOCK DIAGRAM
XTAL1
XTAL2
Crystal Osc/Buffer
TXA
RTSA#, CTSA#,
DTRA#, DSRA#,
CDA#, RIA#, OP2A#
8-bit Data
Bus
Interface
UART Channel A
BRG
THR
UART
Regs
2.97 to 5.5 Volt VCC
UART Channel B
(same as Channel A)
A2:A0
D7:D0
CSA#
CSB#
INTA
INTB
IOW#
IOR#
Reset
RHR
Modem I/Os
RXA
TXB
RTSB#, CTSB#,
DTRB#, DSRB#,
CDB#, RIB#, OP2B#
RXB
*5V Tolerant inputs
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST16C2450CQ48 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| ST16C2450CQ48-F | 功能描述:UART 接口集成電路 DUAL UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| ST16C2450CQ48TR-F | 制造商:Exar Corporation 功能描述:UART 2-CH 1Byte FIFO 3.3V/5V 48-Pin TQFP T/R 制造商:Exar Corporation 功能描述:ST16C2450CQ48TR-F |
| ST16C2450IJ44 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| ST16C2450IJ44-F | 功能描述:UART 接口集成電路 DUAL UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
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