8-bit MCUs. ST6265C Datasheet

ST6265C MCUs. Datasheet pdf. Equivalent

ST6265C Datasheet
Recommendation ST6265C Datasheet
Part ST6265C
Description 8-bit MCUs
Feature ST6265C; ST6255C ST6265C ST6265B 8-bit MCUs with ADC, safe reset, auto-reload timer, EEPROM and SPI Features.
Manufacture STMicroelectronics
Datasheet
Download ST6265C Datasheet





STMicroelectronics ST6265C
ST6255C ST6265C
ST6265B
8-bit MCUs with ADC,
safe reset, auto-reload timer, EEPROM and SPI
Features
3.0 to 6.0V supply operating range
8 MHz maximum clock frequency
-40 to +125°C operating temperature range
Run, Wait and Stop modes
5 interrupt vectors
Look-up table capability in program memory
Data storage in program memory:
user selectable size
Data RAM: 128 bytes
Data EEPROM: 128 bytes (not in ST6255C)
User programmable options
21 I/O pins, fully programmable as:
– Input with pull-up resistor
– Input without pull-up resistor
– Input with interrupt generation
– Open-drain or push-pull output
– Analog Input
8 I/O lines can sink up to 30 mA to drive LEDs or
TRIACs directly
– 8-bit Timer/Counter with 7-bit programmable
prescaler
8-bit Auto-reload timer with 7-bit programmable
prescaler (AR Timer)
Digital watchdog
Oscillator safe guard (not in ST6265B ROM
devices)
Low voltage detector for safe reset (not in
ST6265B ROM devices)
8-bit A/D converter with 13 analog inputs
8-bit synchronous peripheral interface (SPI)
On-chip clock oscillator can be driven by quartz
crystal, ceramic resonator or RC network
User configurable power-on reset
One external non-maskable interrupt
ST626x-EMU2 Emulation and Development
System (connects to an MS-DOS PC via a
parallel port)
PDIP28
PS028
SS0P28
CDIP28W
(See end of Datasheet for Ordering Information)
Table 1. Device summary
Partnumber
ST6255C
ST6265C
ST6265B
OTP/EPROM/ROM
program memory
(Bytes)
3884
3884
3884
EEPROM
(Bytes)
-
128
128
March 2009
Rev 3
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STMicroelectronics ST6265C
Table of Contents
Document
Page
ST6255C ST6265C
ST6265B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 PIN DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 MEMORY MAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 PROGRAMMING MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2 CENTRAL PROCESSING UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2 CPU REGISTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3 CLOCKS, RESET, INTERRUPTS AND POWER SAVING MODES . . . . . . . . . . . . . . . . . . . . . 17
3.1 CLOCK SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2 DIGITAL WATCHDOG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.3 INTERRUPTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.4 POWER SAVING MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4 ON-CHIP PERIPHERALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.1 I/O PORTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.2 TIMER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.3 AUTO-RELOAD TIMER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.4 A/D CONVERTER (ADC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4.5 SERIAL PERIPHERAL INTERFACE (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
5 SOFTWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.1 ST6 ARCHITECTURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.2 ADDRESSING MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.3 INSTRUCTION SET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
6 ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
6.1 ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
6.2 RECOMMENDED OPERATING CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
6.3 DC ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
6.4 AC ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.5 A/D CONVERTER CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
6.6 TIMER CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
6.7 SPI CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
6.8 ARTIMER ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
7 PACKAGE MECHANICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
8 ORDERING INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
8.1 OTP/EPROM DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
8.2 FASTROM DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
8.3 ROM DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
9 REVISION HISTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8. 4. . . 83
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STMicroelectronics ST6265C
ST6255C ST6265C ST6265B
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST6255C, and ST6265C devices are low cost
members of the ST62xx 8-bit HCMOS family of mi-
crocontrollers, which is targeted at low to medium
complexity applications. All ST62xx devices are
based on a building block approach: a common
core is surrounded by a number of on-chip periph-
erals.
The ST62E65C is the erasable EPROM version of
the ST62T65C OTP device, which may be used to
emulate the ST62T55C and ST62T65C OTP de-
vices, as well as the respective ST6255C and
ST6265C ROM devices.
OTP and EPROM devices are functionally identi-
cal. The ROM based versions offer the same func-
tionality selecting as ROM options the options de-
jFigure 1. Block Diagram
fined in the programmable option byte of the OTP/
EPROM versions.
OTP devices offer all the advantages of user pro-
grammability 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.
These compact low-cost devices feature a Timer
comprising an 8-bit counter and a 7-bit program-
mable prescaler, an 8-bit Auto-Reload Timer,
EEPROM data capability (except ST62T55C), a
serial port communication interface, an 8-bit A/D
Converter with 13 analog inputs and a Digital
Watchdog timer, making them well suited for a
wide range of automotive, appliance and industrial
applications.
TEST/VPP
NMI
TEST
8-BIT
A/D CONVERTER
INTERRUPT
PROGRAM
MEMORY
3884 bytes
(ST62T55C, T65C,
E65C)
DATA ROM
USER
SELECTABLE
DATA RAM
128 Bytes
DATA EEPROM
128 Bytes
(ST62T65C/E65C)
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
AUTORELOAD
TIMER
TIMER
SPI (SERIAL
PERIPHERAL
INTERFACE)
DIGITAL
WATCHDOG
PA0..PA7 / Ain
PB0..PB5 / 30 mA Sink
PB6 / ARTimin / 30 mA Sink
PB7 / ARTimout / 30 mA Sink
PC0 / Ain
PC1 / Tim1 / Ain
PC2 / Sin / Ain
PC3 / Sout / Ain
PC4 / Sck / Ain
VDD VSS OSCin OSCout RESET
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