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參數資料
| 型號： | ST16C2451 |
| 廠商： | Exar Corporation |
| 英文描述： | 2.97V TO 5.5V DUART |
| 中文描述： | 2.97V至5.5V杜阿爾特 |
| 文件頁數： | 1/29頁 |
| 文件大小： | 315K |
| 代理商： | ST16C2451 |
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Exar
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com
á
ST16C2450
2.97V TO 5.5V DUART
SEPTEMBER 2003
GENERAL DESCRIPTION
The ST16C2450 (2450) is a dual universal asynchro-
nous
receiver
and
transmitter
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.
REV. 4.0.0
(UART).
The
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:
I
5 Volt Tolerant Inputs
2.97 to 5.5 Volt Operation
Pin-to-pin compatible to Exar’s ST16C2450,
ST16C2550,
XR16L2550,
XR16C2850
Pin-to-pin compatible to TI’s TL16C752B on the 48-
TQFP package
2 independent UART channels
XR16L2750
and
I
Up to 1.5 Mbps data rate with a 24 MHz crystal
oscillator or external clock frequency
I
1 byte Transmit FIFO
I
1 byte Receive FIFO with error tags
I
Status report registers
I
Modem control signals (CTS#, RTS#, DSR#,
DTR#, RI#, CD#)
I
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
F
IGURE
1. ST16C2450 B
LOCK
D
IAGRAM
XTAL1
XTAL2
Crystal Osc/Buffer
TXA, RXA, DTRA#,
DSRA#, RTSA#,
DTSA#, CDA#, RIA#,
OP2A#
8-bit Data
Bus
Interface
UART Channel A
16 Byte TX FIFO
16 Byte RX FIFO
BRG
TX & RX
UART
Regs
2.25 to 5.5 Volt VCC
GND
TXB, RXB, DTRB#,
DSRB#, RTSB#,
CTSB#, CDB#, RIB#,
OP2B#
UART Channel B
(same as Channel A)
A2:A0
D7:D0
IOR#
CSA#
CSB#
INTA
INTB
IOW#
Reset
相關PDF資料 |
PDF描述 |
|---|---|
| ST16C2552CJ44 | DUAL ASYNCHRONOUS RECEIVER/TRANSMITTER WITH FIFOs |
| ST16C2552IJ44 | DUAL ASYNCHRONOUS RECEIVER/TRANSMITTER WITH FIFOs |
| ST162552 | DUAL ASYNCHRONOUS RECEIVER/TRANSMITTER WITH FIFOs |
| ST16C2552CJ | 2.97V TO 5.5V DUAL UART WITH 16-BYTE FIFO |
| ST16C2552IJ | 2.97V TO 5.5V DUAL UART WITH 16-BYTE FIFO |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ST16C2550 | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.97V TO 5.5V DUART WITH 16-BYTE FIFO |
| ST16C2550_04 | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.97V TO 5.5V DUART WITH 16-BYTE FIFO |
| ST16C2550CJ-0A-EB | 功能描述:界面開發工具 Supports C2550 44 ld PLCC, ISA Interface RoHS:否 制造商:Bourns 產品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| ST16C2550CJ44 | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.97V TO 5.5V DUART WITH 16-BYTE FIFO |
| ST16C2550CJ44-F | 功能描述:UART 接口集成電路 2.97V-5.5V 16B FIFO temp 0C to 70C; UART RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率: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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