TTP255 Datasheet, PDF (1/49 Pages) Tontek Design Technology – Target Spec.

Preliminary
TTP255
TonTouch^TM
TTP255 Target Spec.
§ General Description:
TTP255 MCU is an easy-used 4-bit CPU base microcontroller. It
contains 4K-word ROM 、 384-nibble RAM 、 timer/Counter 、 interrupt
service 、IO control hardware、touch pad feature、LDO and TT-BUS for
specified applications. The device is also suitable for diverse applications
in control appliance and consumer product.
§ Features:
1. Tontek Dual RISC 4-bit CPU cores
2. Total 26 crucial instructions and two addressing mode
3. Most instructions need 1 word and 1 machine cycle(2 system clocks)
except read table instruction(RTB)
4. advance CMOS process
5. Working memory with 4K*16 program ROM and 256*4 SRAM
6. 4-level stacks for CPUA (+4 stacks for CPUB)
7. Operating voltage: 2.0V~5.5V
8. System operating frequency: (at VDD=5V )
. High speed system oscillator (OSCH):
Resonator mode: 400KHz~8MHz
RC mode: 150KHz~4MHz
Built-in RC oscillator: 4MHz(typical at 5V)
External clock mode: DC~8MHz
.Low speed peripheral oscillator (OSCL):
Built-in RC oscillator: 16KHz(typical)
9. Offer 8~20 general programmable I/O or input pins
Built-in key wake-up feature enable by software setting
Providing external interrupt inputs and Timer clock inputs
Offering internal signal outputs, like buzzer(PFD)
10. Two 8-bit auto-reload timer/counter & one time base counter
4 timer clock sources(internal & external) selected by software
Timer provides the PFD feature for Buzzer output driver
Time base offers 2 various period interrupt request
11. MCU system protection and power saving controlled mode:
12’/08/21
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