maxq3100-emn Maxim Integrated Products, Inc., maxq3100-emn Datasheet - Page 28

• Manufacturer Part Number: maxq3100-emn
• Description: Maxq3100 Mixed-signal Microcontroller With Analog Comparators, Lcd, And Rtc
• Manufacturer: Maxim Integrated Products, Inc.

Mixed-Signal Microcontroller with Analog
Comparators, LCD, and RTC
Another target application of the MAXQ3100 is in the
electricity metering market. When coupled with an ana-
log front-end, the microcontroller becomes the core of
28
JTAG DOWNLOAD/
CALIBRATION
______________________________________________________________________________________
METERING IC
EQUIPMENT
UNREGULATED
ENERGY
OR EEPROM
CONNECTOR
SUPPLY
I
2
C FRAM
DEBUG
Typical Application Circuit #2
REGULATOR
BACKUP BATTERY
3.3V
TDO
TDI
TCK
TMS
CMP0
V
CMP1
T0
SQW
32KIN
DV
P2.3
P2.2
32KOUT
BAT
DD
Typical Application Circuits (continued)
MAXQ3100
an affordable electricity metering solution. Such an
application can accurately keep time, incorporate a
versatile display, and allow for multiple modes of com-
munication. See Typical Application Circuit #2 .
V
REF
SEG[39:0]
COM[3:0]
RXD0
RXD1
TXD0
TXD1
INT6
INT7
NOTE THAT UP TO 160 LCD SEGMENTS
CAN BE DRIVEN IF OTHER MUXED PIN
FUNCTIONS ARE NOT USED.
LCD MODULE
RS-232
CIRCUIT
IR Tx/Rx
Tx/Rx
MODULE
IR Rx
BUTTON 1
BUTTON 2