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參數(shù)資料
| 型號： | XR16C2852 |
| 廠商： | Exar Corporation |
| 英文描述： | 3.3V AND 5V DUART WITH 128-BYTE FIFO |
| 中文描述： | 3.3V和5V杜阿爾特128字節(jié)FIFO |
| 文件頁數(shù)： | 1/42頁 |
| 文件大小： | 574K |
| 代理商： | XR16C2852 |
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EXAR
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com
uarttechsupport@exar.com
á
XR16C2852
3.3V AND 5V DUART WITH 128-BYTE FIFO
APRIL 2002
REV. 2.0.0
GENERAL DESCRIPTION
The XR16C2852
1
(2852) is a dual universal asyn-
chronous receiver and transmitter (UART). The de-
vice operates at 3.3V and 5V and is pin-to-pin com-
patible to Exar’s ST16C2552 and XR16L2752. The
2852 register set is compatible to the ST16C2552
and the XR16C2752 enhanced features. It supports
the Exar’s enhanced features of 128 bytes of TX and
RX FIFOs, programmable FIFO trigger level and
FIFO level counters, automatic hardware (RTS/CTS)
and software flow control, automatic RS-485 half du-
plex direction control output and a complete modem
interface. Onboard registers provide the user with op-
erational status and data error flags. An internal loop-
back capability allows system diagnotics. Indepen-
dent programmable baud rate generators are provid-
ed in each channel to select data rates up to 3.125
Mbps at 5V. The 2852 is available in the 44-pin PLCC
package.
N
OTE
:
1 Covered by U.S. Patent #5,649,122 and #5,832,205
APPLICATIONS
Portable Appliances
Telecommunication Network Routers
Ethernet Network Routers
Cellular Data Devices
Factory Automation and Process Controls
FEATURES
Pin-to-pin compatible to Exar’s ST16C2552 and
XR16L2752
Improved version of PC16C552
Two independent UART channels
Register set compatible to 16C550
Up to 3 Mbps at 5V, and 2 Mbps at 3.3V
Transmit and Receive FIFOs of 128 bytes
Programmable TX and RX FIFO Trigger Levels
Transmit and Receive FIFO Level Counters
Automatic Hardware (RTS/CTS) Flow Control
Selectable Auto RTS Flow Control Hysteresis
Automatic Software (Xon/Xoff) Flow Control
Automatic RS-485 Half-duplex Direction Control
Output
Wireless Infrared (IrDA 1.0) Encoder/Decoder
Automatic sleep mode
Full modem interface
Alternate Function Register
Device Identification and Revision
Crystal oscillator or external clock input
3.3 V or 5 V operation
Industrial and commercial temperature ranges
44-PLCC package
F
IGURE
1. XR16C2852 B
LOCK
D
IAGRAM
MFA#
(OP2A#,
BAUDOUTA#, or
RXRDYA#)
MFB#
(OP2B#,
BAUDOUTB#, or
RXRDYB#)
XTAL1
XTAL2
CTS#A/B, RI#A/B,
CD#A/B, DSR#A/B
Crystal Osc/Buffer
TXA (or TXIRA)
8-bit Data
Bus
Interface
UART Channel A
128 Byte TX FIFO
128 Byte RX FIFO
BRG
IR
ENDEC
TX & RX
UART
Regs
3.3V or 5V VCC
GND
UART Channel B
(same as Channel A)
A2:A0
D7:D0
IOR#
CS#
CHSEL
INTA
INTB
IOW#
Reset
TXRDYA#
TXRDYB#
RXA (or RXIRA)
Modem Control Logic
DTR#A/B, RTS#A/B
TXB (or TXIRB)
RXB (or RXIRB)
相關PDF資料 |
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|---|---|
| XR16C2852CJ | 3.3V AND 5V DUART WITH 128-BYTE FIFO |
| XR16C2852IJ | 3.3V AND 5V DUART WITH 128-BYTE FIFO |
| XR16C850CJ | UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control |
| XR16C850CM | UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| XR16C2852_05 | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.97V TO 5.5V DUAL UART WITH 128-BYTE FIFOS |
| XR16C2852CJ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| XR16C2852CJ-0A-EB | 功能描述:UART 接口集成電路 Supports C2852 44 ld PLCC, ISA Interface 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 |
| XR16C2852CJ-F | 功能描述:UART 接口集成電路 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 |
| XR16C2852CJTR-F | 功能描述:UART 接口集成電路 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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