FEATURES The TM87PL36H/L chip modifies the LCD drive circuit. Through the optimization
of the boost circuit and the strengthening of the drive circuit, the TM87PL36H/L has stepped on a new level in the LCD drive capability,
and it becomes more familiar with the driver of super large size LCD. . In addition, TM87PL36H/L still retains the original advantages
and functions of TM87PL series IC, which are briefly listed as follows:
1. Accurate voltage regulator circuit and high-precision production calibration process provide highly stable LCD and chip core voltage
regulator output. Support LED direct push mode, all COM and SEG lines can be used as output ports, and because of the use of hardware
LCD voltage regulator lines, it can drive 1/2 of all voltage parameters on the
market while providing perfect display effects, 1/3 Bias LCD display;
2. OTP program memory with unique "TTP (Two Times Programming) function. With the support of OTP type ROM with price advantage, the cost of
TM87PL36H/L is very competitive. By optimizing the 7.5K Word ROM space in design , for all program + table space less than 3.75K Word projects,
can realize two completely unlimited program programming on TM87PL36H/L chip;
3. In addition to the simple and reliable LVR1 line, a set of LVR2 lines are added. This line has a more accurate and stable reset voltage and
can be used as an LBD. The power consumption of the line is only 0.6 microampere, which enables long-term and fast monitoring in power-saving
applications. supply voltage becomes possible;
4. The working voltage automatic conversion circuit can automatically detect the change of the power supply voltage and automatically modify
the internal registers to adapt to wide-range voltage applications;
5. Increase the option of POWER RESET line shutdown, which can be combined with LVR1 and LVR2 to realize a wider range of dual power
supply projects;
6. Increase the mirror image design of COM1~COM9 and SEG32~39, making LCD wiring and application more flexible;
7. The CX rising edge control method is added to the RFC line to realize hardware charge and discharge operation control and solve
the problem of low voltage temperature test drift;
8. The CX high voltage control is added to the RFC line for accurate measurement of the pulse signal length;
9. The TIMER2 control frequency generator line is added to the RFC line, which is used for the frequency measurement of the slow clock (32768)
for the fast clock.
The TM87PL36H/L chip, which integrates the above-mentioned various unique functions and characteristics, will surely occupy an important
place in the ultra-power-saving consumer electronic products just like its predecessor chips.