MLX90719S 查看數據表（PDF） - Melexis Microelectronic Systems
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MLX90719S Datasheet PDF : 24 Pages
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MLX90719
General purpose timer
Features and Benefits
1µm CMOS technology
MLX8 core with 8 accumulators, 80 bytes RAM and 6K ROM
1 high voltage input (detection of mains-active)
Zero-crossing detection input to detect the 50/60Hz
7 standard inputs of which 2 can be used as comparator inputs and 2 can be configured as
open-collector outputs.
15 configurable LCD outputs (segment/backplane)
3 relay drivers which can also be used to drive a triac or LED’s without the need for exter-
nal resistors.
Buzzer driver with programmable frequency
On-chip 4MHz oscillator, crystal oscillator and low power RC oscillator
Low power mode (battery or decoupling capacitor)
High supply voltage eliminates the need for high power resistors
Battery backup
On-chip watchdog
Applications
24 hour timer for cooker applications, coffee maker, ...
Ordering Information
Part No.
Temperature Suffix
Package
version
Temperature Range
MLX90719
S
LS
-x
0C to 85C
The customer specific version code (defining the ROM content) is indicated with 1 character at the end of the
ordering number.
Functional Diagram
XT1
Xtal
XT2
Controller
17bit timer
LC
oscillator
125kHz
oscillator
MLX90719
4MHz
PLL
IN 1-8
8 x input
1 x comp
ZCD
Zero
cross
LX11
Interrupt
controller
RAM
POR
LCD 1-15
LCD
OUT A,B,C
Output
A, B, C
Buzzer
VDD4
BUZ
BAT
VSS
Vreg
Watchdog
Counter
Description
The ASIC consists of a dedicated microcontroller
combined with on-chip analog and digital blocks,
which can be configured to a great extend. This
makes it ideal to adapt it to different applications by
means of an update in the software. The number of
external components for the electronic module is
minimized. A typical application mainly consists of
the MLX90719 ASIC, a number of command buttons,
a LCD, a relay, some LED’s and a buzzer.
The number of buttons and their function can be
freely chosen. The configuration of the LCD, the
number of backplanes and its pinout is also under
software control. Three outputs are available for a
relay and LED’s.
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22/Aug/98 Rev 1.0 3P0a/gJeul1/00
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