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S128 Datasheet, PDF (5/107 Pages) Renesas Technology Corp – Microcontroller
S128
1. Overview
1. Overview
The S128 MCU integrates multiple series of software- and pin-compatible ARM®-based 32-bit MCUs that share a
common set of Renesas peripherals to facilitate design scalability and efficient platform-based product development.
Based on the energy-efficient ARM Cortex®-M0+ 32-bit core, this MCU is particularly suited for cost-sensitive and low-
power applications. The MCU in this series has the following features:
 Up to 256 KB code flash memory
 24-KB SRAM
 Capacitive Touch Sensing Unit (CTSU)
 14-bit A/D Converter (ADC14)
 8-bit D/A Converter (DAC8)
 Security features.
1.1 Function Outline
Table 1.1
ARM core
Feature
ARM Cortex-M0+
Functional description
 Maximum operating frequency: up to 32 MHz
 ARM Cortex-M0+
- Revision: r0p1-00rel0
- ARMv6-M architecture profile
- Single-cycle integer multiplier.
 ARM Memory Protection Unit (MPU)
- ARMv6 Protected Memory System Architecture
- 8 protection regions.
 SysTick timer
- Driven by LOCO clock.
Table 1.2
Memory
Feature
Code flash memory
Data flash memory
Option-setting memory
SRAM
Functional description
Maximum 256 KB code flash memory. See section 42, Flash Memory in User’s Manual.
4 KB data flash memory. See section 42, Flash Memory in User’s Manual.
The option-setting memory determines the state of the MCU after a reset. See section 6,
Option-Setting Memory in User’s Manual.
On-chip high-speed SRAM with either parity bit or Error Correction Code (ECC). See section
41, SRAM in User’s Manual.
Table 1.3
System (1 of 2)
Feature
Operating mode
Functional description
Two operating modes:
 Single-chip mode
 SCI boot mode.
See section 3, Operating Modes in User’s Manual.
R01DS0309EU0100 Rev.1.00
Mar 10, 2017
Page 5 of 107