Product Introduction

The PMS133/PMS134 series is a CMOS 8-bit microprocessor with a 12 bit ADC and OTP based programming. It uses RISC architecture and all instruction architectures have one instruction cycle, with only a few instructions requiring two instruction cycles. 

Internally, it has up to 3KW/4KW OTP program memory and 256 byte data memory, as well as up to 13 channels of 12 bit resolution ADC, with one channel having multiple internal reference voltages to choose from. PMS133/PMS134 simultaneously provide 6 hardware counters: one 16 bit hardware counter, two 8-bit PWM counters, and three 11 bit PWM counters. In addition, PMS133/PMS134 also provides a hardware comparator and a 1/2 VDD bias voltage to drive the LCD.

   Product Features

1.1. characteristic

• Universal OTP series

• Do not use in applications with AC resistance capacitance voltage reduction power supply, strong power ripple, or high EFT requirements

• Operating temperature range: -20 ° C~70 ° C

1.2. System characteristics

A hardware 16 bit counter

Two 8-bit hardware PWM generators

Three 11 bit hardware PWM generators (PWMG0, PWMG1&PWMG2)

A hardware comparator

The Band tap circuit provides a reference voltage of 1.2V

Up to 13 channels and 12 bit ADC

ADC reference high voltage: external input, internal VDD, Band tap 1.20V, 4V, 3V, and 2V

A set of 1T 8x8 hardware multipliers

Up to 22 IO pins with pull-up resistors

Provide three different IO driver capabilities to meet different application requirements

1. PB4, PB7 drive/fill current=30mA/35mA (Strong) and 13mA/17mA (Normal)

2. Other IO (except PA5) drive/fill current=10mA/(13 or 20) mA

3. PA5 current injection=10mA

Each IO pin can be set with wake-up function

Built in 1/2 VDD LCD bias voltage generator, capable of supporting up to 4 × 10 LCD screens

Clock sources: IHRC, ILRC, and EOSC (XTAL)

For all IO devices with wake-up function, two selectable wake-up speeds are supported: normal wake-up and fast wake-up

Reset voltage settings for 8-stage LVR: 4.0V, 3.5V, 3.0V, 2.75V, 2.5V, 2.2V, 2.0V, 1.8V

Two sets of optional external interrupt pins for Code Options

1.3. CPU characteristics

8-bit high-performance RISC CPU

Provide 87 valid instructions

Most of them are 1T (single cycle) instructions

Programmable stack pointer and stack depth

Data and instructions are both in direct and indirect addressing modes

All data storage devices can be used as pointers

Independent IO address and memory address

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