tenx technology


Tenx Brand-new Release TM52F2268 - Low Power Consumption 8051 Series
    TM52F2268 is a new 16K*8 Flash type 8051 MCU, integrates low power consumption 
and LCD display function, but also is added with power save touch key function, 
very suitable for battery-powered application product. for example LCD display 
touch key remote control, touch key watch, touch key timer, touch key calculator, 
touch key password-locked safe, etc…, the specification meets engineering rules 
-40℃~85℃ operating temperature and high noise immunity EFT/ESD characteristics 
demand, Suitable for use in a variety of portable application products.

    TM52F2268 uses tenx L51 CPU Core, compared to the traditional 8051 IC, the 
overall power consumption is lower; operating speed is faster and more efficient. 
TM52F2268 keeps most of the characteristics in standard 8051, program memory 
provides 16K Bytes flash memory space, and also provides ICP/ISP/IAP storage 
function; developers can store data directly into Flash memory space, while internal 
SRAM provides 768 Bytes storage space, UART interface is compatible with standard 
8051, and provides one set of SPI interface, Timer0/1/2 is standard 8051 timer. 
Besides, in Timer3 user can use 32.768 KHz clock source. Timer3 provides 23-bit 
timer which allows long period of counting, can calibrate accurately +/- 0.5 ppm ~ 
61 ppm calibration ranges, provides developer very accurate clock source.

    TM52F2268 provides power save Auto Touch key structure, which adopts touch 
key hardware interrupt to do touch key interrupt. When CPU enters Idle mode, it 
still can detect touch key, therefore, standby current touch key detection can be less 
than 2 uA. TM52F2268 touch key structure is high-integrated IC, requires very little 
external element, can provide up to 16 Touch key input, at the same time can 
provide up to 4 Auto Touch key wake-up for polling detection. Besides, internal 
reference Touch Key channel can provide Touch Key standard function value for 
external bad environment, which is used for calibrating external touch value and 
internal touch value, to strengthen Touch Key detection accuracy. When external 
touch key detects hand touch operation, will trigger hardware interrupt to wake up 
CPU for touch key detection judgment, so battery voltage in 3V, internal chip is 
using power saving operation. When CPU operates clock source 32.768 KHz in Idle 
mode, enables Auto Touch key polling detection and LCD display, the minimal power 
consumption can be 3 uA.

    TM52F2268 provides power saving LCD display structure, the driving capability is 
up to 8 COM* 40 SEG selectable LCD pixel output, 1 /3 ~ 1/8 duty and 1/3 LCD bias 
voltage (VL1/ VL2 / VL3) are generated by tenx’s unique tiny current LCD Buffer 
technology, which can drive very big LCD panel without waveform distortion, but the 
Driver itself only consumes small current. Under 32 KHz condition, can select 
internal power save to achieve low power consumption characteristic. When battery 
voltage is 3V, with internal power save, LCD is enabled, and when operating clock 
source is 32.768 KHz in Idle mode, the minimum power consumption can be 2 uA. 
With the same condition, if LCD is disabled, the minimum standby power 
consumption can be 1 uA. Besides, TM52F2268 supports LED transductive output, 
LED can support up to 8 COM* 36 SEG pixel output, each COM pin output capability 
is 40 mA. In power supply control, TM52F2268 provides internal band gap for 
voltage calibration, at the same time provides Tiny current LDO regulator output for 
IC use. And also allows developer chooses different power saving in different 
operating mode (Fast/Slow/Idle/Stop).

    For TM52F2268, tenx plans of using convenient USB development tool (EV2268 
board), which can directly use the original IC (Real chip) to do ICE in-line trimming. 
Using USB EV2268 Board immediately simulate IC condition, can access memory 
space and set register directly, provide routine breakpoint and step, can execute 
tracking analysis data, increase program development efficiency and debug 
capability, very suitable for fast product development.

more news