CD00001237 Datasheet, PDF (6/105 Pages) STMicroelectronics – 8-bit MCUs with A/D converter

ST6215C ST6225C
1 INTRODUCTION
The ST6215C, 25C devices are low cost members
of the ST62xx 8-bit HCMOS family of microcontrol-
lers, which is targeted at low to medium complexity
applications. All ST62xx devices are based on a
building block approach: a common core is sur-
rounded by a number of on-chip peripherals.
The ST62E25C is the erasable EPROM version of
the ST62T15C, T25C devices, which may be used
during the development phase for the ST62T15C,
T25C target devices, as well as the respective
ST6215C, 25C ROM devices.
OTP and EPROM devices are functionally identi-
cal. OTP devices offer all the advantages of user
programmability at low cost, which make them the
ideal choice in a wide range of applications where
frequent code changes, multiple code versions or
last minute programmability are required.
The ROM based versions offer the same function-
ality, selecting the options defined in the program-
Figure 1. Block Diagram
mable option bytes of the OTP/EPROM versions
in the ROM option list (See Section 12.6 on page
97).
The ST62P15C/P25C are the Factory Advanced
Service Technique ROM (FASTROM) versions of
ST62T15C,T25C OTP devices.
They offer the same functionality as OTP devices,
but they do not have to be programmed by the
customer (See Section 12 on page 91).
These compact low-cost devices feature a Timer
comprising an 8-bit counter with a 7-bit program-
mable prescaler, an 8-bit A/D Converter with 16
analog inputs and a Digital Watchdog timer, mak-
ing them well suited for a wide range of automo-
tive, appliance and industrial applications.
For easy reference, all parametric data is located
in Section 11 on page 63.
8-BIT
A/D CONVERTER
V_PP
NMI
INTERRUPTS
P_:ROGRAM
MEMORY
(2K or 4K Bytes)
DATA ROM
USER
SELECTABLE
DATA RAM
64 Bytes
PC
STACK LEVEL 1
STACK LEVEL 2
STACK LEVEL 3
STACK LEVEL 4
STACK LEVEL 5
STACK LEVEL 6
8-BIT CORE
POWER
SUPPLY
OSCILLATOR
RESET
PORT A
PORT B
PORT C
PA0..PA3 (20mA Sink)
PA4..PA7 / Ain
PB0..PB7 / Ain
PC4..PC7 / Ain
TIMER
WATCHDOG
TIMER
TIMER
V_DD V_SS OSCin OSCout RESET
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