參數資料
型號: MAX3111EEWI+G36
廠商: Maxim Integrated Products
文件頁數: 2/31頁
文件大小: 0K
描述: IC TXRX RS232 SPI W/CAP 28-SOIC
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 25
特點: 收發(fā)器
通道數: 1,UART
規(guī)程: RS232,RS485
電源電壓: 3 V ~ 3.6 V
帶IrDA 編碼器/解碼器:
帶故障啟動位檢測功能:
帶CMOS:
安裝類型: 表面貼裝
封裝/外殼: 28-SOIC(0.295",7.50mm 寬)
供應商設備封裝: 28-SOIC W
包裝: 管件
產品目錄頁面: 1404 (CN2011-ZH PDF)
SPI/MICROWIRE-Compatible UART and ±15kV ESD-
Protected RS-232 Transceivers with Internal Capacitors
Detailed Description
The MAX3110E/MAX3111E contain an SPI/QSPI/MICROWIRE-
compatible UART and an RS-232 transceiver with two
drivers and two receivers. The UART is compatible with
SPI and QSPI for CPOL = 0 and CPHA = 0. The UART
supports data rates up to 230kbaud for standard UART
bit streams as well as IrDA and includes an 8-word
receive FIFO. Also included is a 9-bit-address recogni-
tion interrupt.
The RS-232 transceiver has electrostatic discharge
(ESD) protection on the transmitter outputs and the
receiver inputs. The internal charge-pump capacitors
minimize the number of external components required.
The RS-232 transceivers meet EIA/TIA-232 specifica-
tions for VCC down to the minimum supply voltage and
are guaranteed to operate for data rates up to 250kbps.
The UART and RS-232 functions operate as one device
or independently since the two functions share only
supply and ground connections.
UART
The universal asynchronous receiver transmitter
(UART) interfaces the SPI/QSPI/MICROWIRE-compati-
ble synchronous serial data from a microprocessor (P)
to asynchronous, serial-data communication ports (RS-
232, IrDA). Figure 1 shows the MAX3110E/MAX3111E
functional diagram. Included in the UART function is an
SPI/QSPI/MICROWIRE interface, a baud-rate generator,
and an interrupt generator.
SPI
INTERFACE
INTERRUPT
LOGIC
Pr
RX SHIFT REGISTER
Pt
TX SHIFT REGISTER
T2OUT
T2IN
9
Pr
RX BUFFER
Pt
TX BUFFER
Pr
RX FIFO
9
4
INTERNAL
5k
INTERNAL
T1OUT
R2IN
T1IN
R2OUT
R1IN
V+
GND
V-
SHDN
IRQ
R1OUT
C1+
C1-
C2+
C2-
VCC
RX
X2
X1
TX
CTS
RTS
BAUD-RATE
GENERATOR
DOUT
SCLK
CS
DIN
I/O
CHARGE
PUMP
MAX3110E/MAX3111E
Figure 1. MAX3110E/MAX3111E Functional Diagram
10
Maxim Integrated
MAX3110E/MAX3111E
相關PDF資料
PDF描述
MAX3110ECWI+G36 IC UART/TXRX RS232 W/CAPS 28SOIC
MAX3111ECWI+G36 IC TXRX RS232 SPI W/CAP 28-SOIC
MAX3140CEI+ IC UART SPI MICRWR W/TXRX 28QSOP
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