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| 型號： | XR19L210IL40-0B-EB |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 1/43頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVAL BOARD FOR XR19L202 40QFN |
| 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
XR19L210
SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
JULY 2007
REV. 1.0.2
GENERAL DESCRIPTION
The XR19L210 (L210) is a highly integrated device that
combines
a
full-featured
single
channel
Universal
Asynchronous Receiver and Transmitter (UART) and an
RS-232 transceiver. The L210 is designed to operate with a
single 3.3V or 5V power supply. The L210 is fully compliant
with EIA/TIA-232-F Standards from a +3.0V to +5.5V power
supply. The device operates at 250 Kbps data rate with
worst case 3K ohms load. Both RS-232 driver outputs and
receiver inputs can operate in harsh electrical environments
of +/-15V without damage and can survive multiple +/-15kV
ESD on the RS-232 lines, while maintaining RS-232 output
levels.
The L210 operates in four different modes: Awake, Partial
Sleep, Full Sleep and Power-Save. Each mode can be
invoked via hardware and/or software. In the Awake mode,
all functions are active. In the Partial Sleep mode, the
internal crystal oscillator or charge pump is turned off. In
Full Sleep mode, the internal crystal oscillator and the
charge pump is shut down. In the Power-Save mode, the
core logic is isolated from the control signals (chip select,
read/write strobes, address and data bus lines). All the RS-
232 receivers remain active in any of these four modes.
APPLICATIONS
Battery-Powered Equipment
Handheld and Mobile Devices
Handheld Terminals
Industrial Peripheral Interfaces
Point-of-Sale (POS) Systems
FEATURES
Meets true EIA/TIA-232-F Standards from a 3.0 V to 5.5V
operation
Up to 250 Kbps data transmission rate
45us sleep mode exit (charge pump to full power)
ESD protection for RS-232 I/O pins at
■ +/-15kV - Human Body Model
■ +/-15kV - IEC 61000-4-2, Air-Gap Discharge
■ +/- 8kV - IEC 61000-4-2, Contact Discharge
Software compatible with industry standard 16550 UART
Intel/Motorola bus select
Half-modem interface (TXD, RXD, RTS, CTS)
Sleep and Power-save modes to conserve battery power
Wake-up interrupt upon exiting low power modes
FIGURE 1. BLOCK DIAGRAM
XR19L210
UART
RS-232 Transceiver
Intel
or
Mo
torol
a
Bus
Interface
PwrSave
A2:A0
D7:D0
IOR#
IOW# (R/W#)
CS#
INT (IRQ#)
RESET (RESET#)
I/M#
Crystal
Osc/Buffer
XTA
L
1
XTA
L
2
BRG
16 Byte
TX FIFO
16 Byte
RX FIFO
Modem
I/Os
UA
RT
Regi
ster
s
TX
RX
RTS#
CTS#
Charge Pump
TXD
RTS
5K
RXD
5K
CTS
AC
P
C2+
C2-
C1+
C1-
VC
C
(3.
0
to
5.5V)
*5 V
Tolerant
Inputs
GN
D
VREF+
VREF-
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR19L210IL40-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 |
| XR19L212 | 制造商:EXAR 制造商全稱:EXAR 功能描述:TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER |
| XR19L212IL48 | 制造商:EXAR 制造商全稱:EXAR 功能描述:TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER |
| XR19L212IL48-0B-EB | 功能描述:界面開發(fā)工具 Supports L212 48 pin QFN, PCI Interface RoHS:否 制造商:Bourns 產(chǎn)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 |
| XR19L212IL48-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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