MAX3100EEE-T Maxim Integrated, MAX3100EEE-T Datasheet

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MAX3100EEE-T

Manufacturer Part Number
MAX3100EEE-T
Description
UART Interface IC
Manufacturer
Maxim Integrated
Type
IrDA, RS-232, RS-485r
Datasheet

Specifications of MAX3100EEE-T

Number Of Channels
1
Data Rate
0.23 MBd
Supply Voltage - Max
5.5 V
Supply Voltage - Min
2.7 V
Supply Current
1 mA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Package / Case
QSOP-16
Mounting Style
SMD/SMT
Operating Supply Voltage
3.3 V, 5 V
Pin Configurations appear at end of data sheet.
Functional Diagrams continued at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
The MAX3100 universal asynchronous receiver transmit-
ter (UART) is the first UART specifically optimized for
small microcontroller-based systems. Using an
SPI™/MICROWIRE™ interface for communication with
the host microcontroller (µC), the MAX3100 comes in a
compact 16-pin QSOP. The asynchronous I/O is suitable
for use in RS-232, RS-485, IR, and opto-isolated data
links. IR-link communication is easy with the MAX3100’s
infrared data association (IrDA) timing mode.
The MAX3100 includes a crystal oscillator and a baud-
rate generator with software-programmable divider ratios
for all common baud rates from 300 baud to 230k baud.
A software- or hardware-invoked shutdown lowers quies-
cent current to 10µA, while allowing the MAX3100 to
detect receiver activity.
An 8-word-deep first-in/first-out (FIFO) buffer minimizes
processor overhead. This device also includes a flexible
interrupt with four maskable sources, including address
recognition on 9-bit networks. Two hardware-handshak-
ing control lines are included (one input and one output).
The MAX3100 is available in 14-pin plastic DIP and small,
16-pin QSOP packages in the commercial and extended
temperature ranges.
SPI is a trademark of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp.
SPI is a trademark of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp.
SPI is a trademark of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp.
________________________Applications
Handheld Instruments
Intelligent Instrumentation
UART in SPI Systems
Small Networks in HVAC or Building Control
Isolated RS-232/RS-485: Directly Drives Opto-Couplers
Low-Cost IR Data Links for Computers/Peripherals
TOP VIEW
DOUT
SHDN
SCLK
GND
DIN
IRQ
CS
1
2
3
5
6
4
7
+
MAX3100
Functional Diagrams
DIP
General Description
14
13
12
11
10
9
8
V
TX
RX
RTS
CTS
X1
X2
CC
*EP = EXPOSED PAD, CONNECT EP TO GROUND
N.C.
N.C.
N.C.
V
DIN
TX
CC
19
20
21
22
23
24
SPI/MICROWIRE-Compatible
+
18
1
17
2
TQFN-EP
MAX3100
16
3
15
4
♦ Small TQFN and QSOP Packages Available
♦ Full-Featured UART:
♦ SPI/MICROWIRE-Compatible µC Interface
♦ Lowest Power:
♦ +2.7V to +5.5V Supply Voltage in Operating Mode
♦ Schmitt-Trigger Inputs for Opto-Couplers
♦ TX and RTS Outputs Sink 25mA for Opto-Couplers
Typical Operating Circuit appears at end of data sheet.
____________________________Features
+ Denotes a lead(Pb)-free/RoHS-compliant package.
EP = Exposed pad.
MAX3100CPD+
MAX3100CEE+
MAX3100EPD+
MAX3100EEE+
MAX3100ETG+
14
5
—IrDA SIR Timing Compatible
—8-Word FIFO Minimizes Processor
—Up to 230k Baud with a 3.6864MHz Crystal
—9-Bit Address-Recognition Interrupt
—Receive Activity Interrupt in Shutdown
—150µA Operating Current at 3.3V
—10µA in Shutdown with Receive Interrupt
*EP
Overhead at High Data Rates
13
6
PART
12
11
10
9
8
7
N.C.
X1
X2
GND
SHDN
N.C.
UART in QSOP-16
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
SHDN
DOUT
SCLK
0°C to +70°C
0°C to +70°C
GND
N.C.
DIN
IRQ
CS
Ordering Information
1
2
3
4
5
6
7
8
Pin Configurations
Pin Configurations
Pin Configurations
+
MAX3100
QSOP
MAX3100
14 Plastic DIP
16 QSOP
14 Plastic DIP
16 QSOP
24 TQFN-EP*
PIN-PACKAGE
19-1259; Rev 2; 1/09
16
15
14
13
12
11
10
9
V
TX
RX
RTS
N.C.
CTS
X1
X2
CC

Related parts for MAX3100EEE-T

MAX3100EEE-T Summary of contents

Page 1

... Shutdown with Receive Interrupt ♦ +2.7V to +5.5V Supply Voltage in Operating Mode ♦ Schmitt-Trigger Inputs for Opto-Couplers ♦ TX and RTS Outputs Sink 25mA for Opto-Couplers PART MAX3100CPD+ MAX3100CEE+ MAX3100EPD+ MAX3100EEE+ MAX3100ETG+ + Denotes a lead(Pb)-free/RoHS-compliant package Exposed pad. Typical Operating Circuit appears at end of data sheet ...

Page 2

... +70°C) A MIN TYP 0.27 = 3.3V 0.15 2.7 = +25°C.) A MAX UNITS ±1 µ µ 0.9 V 0.4 ±1 µA pF 0.4 V ±1 µ 0.4 10 µA 5.5 V Maxim Integrated ...

Page 3

... CS used to select the MAX3100. A separation greater than CSS t CSH SCLK DIN t DV DOUT Figure 1. Detailed Serial-Interface Timing Maxim Integrated SPI/MICROWIRE-Compatible , unless otherwise noted. Typical values are at T MAX CONDITIONS C = 100pF LOAD C = 100pF 10kΩ CS LOAD C = 100pF LOAD ...

Page 4

... EXTERNAL CLOCK FREQUENCY 700 600 500 400 300 200 100 0 80 100 EXTERNAL CLOCK FREQUENCY (MHz) TX, RTS, DOUT OUTPUT CURRENT vs. OUTPUT LOW VOLTAGE (V = 3.3V DOUT 0.1 0.2 0.3 0.4 0.5 0.9 1.0 VOLTAGE ( 3. 5V) CC RTS TX DOUT 0.6 0.7 0.8 0.9 1.0 Maxim Integrated ...

Page 5

... The write configuration selects between normal UART timing and IrDA timing, controls shutdown, and contains 4 interrupt mask bits. Maxim Integrated SPI/MICROWIRE-Compatible NAME DIN SPI/MICROWIRE Serial-Data Input. Schmitt-trigger input. ...

Page 6

... SPI/MICROWIRE interface. The MAX3100 adds start and stop bits to the data and clocks the data out at the selected baud rate (Table 7 D0t–D7t X1 XTAL RA ACTIVITY DETECT X2 FE START/STOP- BIT DETECT Maxim Integrated TX RX CTS RTS ...

Page 7

... Subsequent bits are also majority sampled. Receive data is stored in an 8-word FIFO. The FIFO is cleared if it overflows. The on-board oscillator can use a 1.8432MHz or 3.6864MHz crystal can be driven at X1 with a 45% to 55% duty-cycle square wave. Maxim Integrated SPI/MICROWIRE-Compatible ONE BAUD PERIOD ...

Page 8

... D3t D7r D6r D5r D4r D3r D7r D6r D5r D4r D3r TEST D2t D1t D0t D2r D1r D0r D2r D1r D0r Maxim Integrated ...

Page 9

... RTS w 0 Maxim Integrated SPI/MICROWIRE-Compatible Baud-Rate Divisor Select Bits. Sets the baud clock’s value (Table 6). Baud-Rate Divisor Select Bits. Reads the 4-bit baud clock value assigned to these registers. Clear-to-Send-Input. Records the state of the CTS pin (CTS bit = 0 implies CTS pin = logic high) ...

Page 10

... Mask for T bit. IRQ is asserted and (Table 6). Reads the value of the TM bit (Table 6 DESCRIPTION D7 STOP STOP IDLE STOP STOP IDLE D7 Pt STOP STOP IDLE STOP STOP Pt IDLE SECOND STOP BIT IS OMITTED Maxim Integrated ...

Page 11

... Transmit buffer empty IRQ N Figure 6. Interrupt Sources and Masks Functional Diagram Maxim Integrated SPI/MICROWIRE-Compatible UART in QSOP-16 shows the functional diagram for the interrupt sources and mask blocks. DESCRIPTION The Pr bit reflects the value in the word currently in the receive-buffer register (oldest data available). The Pr bit is set when parity is enabled ( and the received parity bit is 1 ...

Page 12

... This is accomplished easily with a crystal, and in most cases can be achieved with ceramic resonators. Table 8 lists the different types of crystals and resonators and their suppliers. Driving Opto-Couplers Crystal-Oscillator Operation— X1, X2 Connection Maxim Integrated ...

Page 13

... DOUT 470Ω SCLK DIN 470Ω CS MAX253 TRANSFORMER DRIVER Figure 7. Driving Optocouplers Maxim Integrated SPI/MICROWIRE-Compatible ISO 2kΩ 6N136 DIN MAX3100 2kΩ 6N136 SCLK 470Ω 6N136 DOUT 2kΩ 6N136 CS +5V MAX667 MBR0520 LINEAR REGULATOR ...

Page 14

... EMI. Minimize capacitive loading minimize supply current. ISO + MAX3100 TX GND 470Ω PART SUPPLIER NUMBER ECS-18-13-1 CSA1.84MG ECS-36-18-4 ECS-36-20-5P PBRC-3.68B CS SCLK DIN DOUT PHONE NUMBER (913) 782-7787 (800) 831-9172 (913) 782-7787 (913) 782-7787 (803) 448-9411 Maxim Integrated ...

Page 15

... DATA BITS UART FRAME Figure 9. IrDA Timing Maxim Integrated SPI/MICROWIRE-Compatible The parity/9th-bit interrupt is controlled only by the data in the receive register, and is not affected by data in the FIFO, so the most effective use of the parity/9th-bit interrupt is with FIFO disabled. With the FIFO disabled, received nonaddress words can be ignored and not even read from the UART ...

Page 16

... MAX3100. It then begins sending the message repeat- edly. If the delay bit is set, it inserts a 1sec delay between transmissions the 8051 example, the main routine is called UTLK, and can be used in any PIC-based, port-pin-interfaced application. IR MODULE OR DRIVE TXD TX 1/6 HC00 3100 MODULE RXD RX 1/6 HC00 IR Maxim Integrated ...

Page 17

... Y/N 1μs Delay 100kΩ 1/2 STOP BITS 100kΩ 7/8 BITS 100kΩ B3 100kΩ B2 100kΩ B1 100kΩ B0 100kΩ Figure 11. Quick Brown Fox Generator Maxim Integrated SPI/MICROWIRE-Compatible RB7 PIC16C54 RB6 RA0 DIN MAX3100 RB5 RA1 DOUT RB4 RA2 SCLK RB3 RA3 ...

Page 18

... D6t D5t D4t D3t D2t D6r D5r D4r D3r D2r D6r D5r D4r D3r D2r Maxim Integrated TEST D1t D0t D1r D0r D1r D0r ...

Page 19

... Parity enabled * Default setting is clear Table 12. Field Definitions Register Field Name Config B3–B0 Write Data D7t–D0t Read Data Pr Read Data D7r–D0r Maxim Integrated SPI/MICROWIRE-Compatible Register Bit Clear (0) Enable FIFO Config buffer Write Operate Data Disable transmit- done interrupt Write ...

Page 20

... MAX3100 MAX3100 SPI/MICROWIRE-Compatible UART in QSOP-16 Figure 12a. 8051 IrDA/RS-232 Code 20 Maxim Integrated ...

Page 21

... Figure 12b. MAX3100 Using PIC µC Maxim Integrated SPI/MICROWIRE-Compatible UART in QSOP-16 MAX3100 MAX3100 21 ...

Page 22

... MAX3100 MAX3100 SPI/MICROWIRE-Compatible UART in QSOP-16 Figure 12b. MAX3100 Using PIC µC (continued) 22 Maxim Integrated ...

Page 23

... Operating Circuit SPI/MICROWIRE μC ___________________Chip Information PROCESS: BiCMOS SUBSTRATE CONNECTED TO GND Maxim Integrated SPI/MICROWIRE-Compatible UART in QSOP-16 MAX3100 DIN TX DOUT RX SCLK CTS CS RTS IRQ C1 C2 For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE 14 Plastic DIP ...

Page 24

... Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. 24 © 2009 Maxim Integrated DESCRIPTION Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 The Maxim logo and Maxim Integrated are trademarks of Maxim Integrated Products, Inc. Revision History PAGES CHANGED ...

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