SC9RS08KA2 datasheet(15/134 Pages) FREESCALE

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SC9RS08KA2 Series Data Sheet, Rev. 1

Freescale Semiconductor

Chapter 1

SC9RS08KA2 Series Device Overview

1.1

Overview

The SC9RS08KA2 Series microcontroller unit (MCU) is an extremely low-cost, small pin count device

for home appliances, toys, and small geometry applications. This device is composed of standard on-chip

modules including, a very small and highly efficient RS08 CPU core, 63 bytes RAM, 2K bytes Flash, an

8-bit modulo timer, keyboard interrupt, and analog comparator. The device is available in small 6- and

8-pin packages.

1.2

MCU Block Diagram

The block diagram, Figure 1-1, shows the structure of the SC9RS08KA2 Series MCU.

Figure 1-1. SC9RS08KA2 Series Block Diagram

RS08 CORE

USER FLASH

USER RAM — 63 BYTES

NOTES:

(1) Pins are software configurable with pullup/pulldown device if input port.

(2) Integrated pullup device enabled if reset enabled (RSTPE=1).

(3) These pins are not available in 6-pin package.

POWER AND

VSS

VDD

INTERNAL CLOCK

SOURCE

BDC

RS08 SYSTEM CONTROL

RTI

CPU

COP

WAKEUP

LVD

RESET AND STOP WAKEUP

MODES OF OPERATION

POWER MANAGEMENT

5-BIT KEYBOARD

INTERRUPT MODULE

PTA0/KBIP0/ACMP+ (1)

PTA1/KBIP1/ACMP- (1)

PTA2/KBIP2/TCLK/RESET/VPP (1),( 2)

PTA3/ACMPO/BKGD/MS

ANALOG COMPARATOR

MODULE

MODULO TIMER

MODULE

PTA4/KBIP4 (1),(3)

PTA5/KBIP5 (1), (3)

INTERNAL REGULATOR

(KBI)

TCLK

ACMP-

ACMP+

ACMPO

(ICS)

(ACMP)

(MTIM)

SC9RS08KA2 — 2048 BYTES

SC9RS08KA1 — 1024 BYTES

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