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MAX3100EPD

Part # MAX3100EPD
Description SPI/MICROWIRE-COMPATIBLE UARTIN A QSOP-16 P - Bulk
Category IC
Availability In Stock
Qty 5
Manufacturer Available Qty
MAXIM
Date Code: 9813
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
_______________General Description
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 com-
pact 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.
________________________Applications
Hand-Held 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
____________________________Features
♦ 16-Pin QSOP Package (8-pin SO footprint):
Smallest UART Available
♦ Full-Featured UART:
—IrDA SIR Timing Compatible
—8-Word FIFO Minimizes Processor
Overhead at High Data Rates
—Up to 230k Baud with a 3.6864MHz Crystal
—9-Bit Address-Recognition Interrupt
—Receive Activity Interrupt in Shutdown
♦ SPI/Microwire-Compatible µC Interface
♦ Lowest Power:
—150µA Operating Current at 3.3V
—10µA in 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
MAX3100
SPI/Microwire-Compatible
UART in QSOP-16
________________________________________________________________
Maxim Integrated Products
1
14
13
12
11
10
9
8
1
2
3
4
5
6
7
V
CC
TX
RX
RTSCS
SCLK
DOUT
DIN
TOP VIEW
MAX3100
CTS
X1
X2
GND
SHDN
IRQ
DIP
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
V
CC
TX
RX
RTS
N.C.
CTS
X1
X2
DIN
DOUT
SCLK
CS
N.C.
IRQ
SHDN
GND
MAX3100
QSOP
__________________________________________________________Pin Configurations
19-1259; Rev 0; 7/97
PART
MAX3100CPD
MAX3100CEE 0°C to +70°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
14 Plastic DIP
16 QSOP
______________Ordering Information
Typical Operating Circuit appears at end of data sheet.
SPI is a trademark of Motorola, Inc. Microwire is a trademark of National Semiconductor Corp.
MAX3100EPD
MAX3100EEE -40°C to +85°C
-40°C to +85°C 14 Plastic DIP
16 QSOP
MAX3100
SPI/Microwire-Compatible
UART in QSOP-16
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +5.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are measured at 9600 baud at T
A
= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
CC
to GND ...........................................................................+6V
Input Voltage to GND
(
CS, SHDN, X1, CTS, RX, DIN, SCLK) ....-0.3V to (V
CC
+ 0.3V)
Output Voltage to GND
(DOUT, RTS, TX, X2) ..............................-0.3V to (V
CC
+ 0.3V)
IRQ...........................................................................-0.3V to 6V
TX, RTS Output Current ....................................................100mA
X2, DOUT, IRQ Short-Circuit Duration
(to V
CC
or GND) .........................................................Indefinite
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 10.00mW/°C above +70°C) .......... 800mW
QSOP (derate 8.30mW/°C above +70°C).....................667mW
Operating Temperature Ranges
MAX3100C_ _ ......................................................0°C to +70°C
MAX3100E_ _ ...................................................-40°C to +85°C
Storage Temperature Range............................ -65°C to +160°C
Lead Temperature (soldering, 10sec) ............................ +300°C
I
SOURCE
= 25µA, TX only
V
IRQ
= 5.5V
I
SINK
= 4mA
DOUT only, CS = V
CC
Shutdown mode
Active mode
I
SOURCE
= 5mA
V
V
CC
= 3.3V
V
X1
= 0V and 5.5V
CONDITIONS
V
CC
- 0.5
V
OH
Output High Voltage
pF5C
OUT
Output Capacitance
µA±1I
LK
Output Leakage
V0.4V
OL
Output Low Voltage
pF5C
OUT
Output Capacitance
µA±1I
LK
Output Leakage
DOUT, TX, RTS: I
SINK
= 4mA
TX, RTS: I
SINK
= 25mA
V
pF5C
IN
Input Capacitance
V0.3 x V
CC
V
IL
Input Low Voltage
V0.7 x V
CC
V
IH
Input High Voltage
0.4
V
OL
Output Low Voltage
0.9
V
X1
= 0V and 5.5V
VV
CC
/ 2 0.2 x V
CC
V
IL
Input Low Voltage
V0.7 x V
CC
V
CC
/ 2V
IH
Input High Voltage
V0.05 x V
CC
V
HYST
Input Hysteresis
µA±1I
IL
Input Leakage
pF5C
IN
Input Capacitance
UNITSMIN TYP MAXSYMBOLPARAMETER
2
I
IN
Input Current µA
25
V
CC
- 0.5
mA
0.27 1
I
CC
V
CC
Supply Current in
Normal Mode
SHDN bit = 1 or SHDN = 0,
logic inputs are at 0V or V
CC
µA10I
CC
V
CC
Supply Current in
Shutdown
With 1.8432MHz crystal;
all other logic inputs are at
0V or V
CC
V
CC
= 5V
V
CC
= 3.3V 0.15 0.4
V2.7 5.5V
CC
Supply Voltage
LOGIC INPUTS (DIN, SCLK, CS, SHDN, CTS, RX)
OSCILLATOR INPUT (X1)
OUTPUTS (DOUT, TX, RTS)
IRQ OUTPUT (Open Drain)
POWER REQUIREMENTS
MAX3100
SPI/Microwire-Compatible
UART in QSOP-16
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +2.7V to +5.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
C
LOAD
= 100pF
C
LOAD
= 100pF, R
CS
= 10kΩ
C
LOAD
= 100pF
CONDITIONS
ns100t
CL
SCLK Low Time
ns100t
CH
SCLK High Time
ns238t
CP
SCLK Period
ns0t
DH
DIN to SCLK Hold Time
ns100t
DS
DIN to SCLK Setup Time
ns100t
DO
SCLK Fall to DOUT Valid
ns0t
CSH
CS to SCLK Hold Time
ns100t
CSS
CS to SCLK Setup Time
ns100t
TR
CS High to DOUT Tri-State
ns100t
DV
CS Low to DOUT Valid
UNITSMIN TYP MAXSYMBOLPARAMETER
TX, RTS, DOUT: C
LOAD
= 100pF
(Note 1)
ns10t
r
Output Rise Time
ns200t
CSW
CS High Pulse Width
ns100t
CS0
SCLK Rising Edge
to CS Falling
(Note 1) ns200t
CS1
CS Rising Edge
to SCLK Rising
• • •
• • •
• • •
• • •
CS
SCLK
DIN
DOUT
t
CSH
t
CSS
t
CL
t
DS
t
DH
t
DV
t
CH
t
DO
t
TR
t
CSH
Figure 1. Detailed Serial-Interface Timing
TX, RTS, DOUT, IRQ: C
LOAD
= 100pF
ns10t
f
Output Fall Time
AC TIMING (Figure 1)
Note 1: t
CS0
and t
CS1
specify the minimum separation between SCLK rising edges used to write to other devices on the SPI bus
and the CS used to select the MAX3100. A separation greater than t
CS0
and t
CS1
ensures that the SCLK edge is ignored.
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