September 2001 1/4
This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.
TARGET SPECIFICATION
ST52T520/E520
8-BIT INTELLIGENT CONTROLLER UNIT (ICU)
Two Timer/PWMs, ADC, I2C, SPI
®
Memories
■Upto8KbytesEPROM/OTP
■Up to 512 bytes of RAM
■Readout protection
Core
■Register File based architecture
■105 basic instructions
■Hardware multiplication and division
■Decision Processor for the implementation of
Fuzzy Logic algorithms
■Deep configurable System and User Stacks
Clock and Power Supply
■Up to 24 MHz clock frequency.
■Power-On Reset (POR) and Low Voltage
Detector (LVD)
■Power Saving features
Interrupts
■Up to 8 interrupt vectors
■Non-Maskable Interrupt (NMI)
■Two Port Interrupts with up to 16 sources
Peripherals
■On-chip 8-bit A/D Converter with 8 channel
analog multiplexer.
■2 Programmable 16 bit Timer/PWMs with
internal 16-bit Prescaler featuring:
– PWM output
– Input capture
– Output compare
– Pulse generator mode
■Watchdog timer
■I2C
Peripheral with master and slave mode
■3-wire SPI
Peripheral supporting Single
Master and Multi Master SPI modes
I/O Ports
■14 or 22 I/O PINs configurable in pull-up, push-
pull, weak pull-up, open-drain and high-
impedance
■High current sink/source in all pins
Development tools
■High level Software tools
■‘C’ Compiler
■Emulator
■Low cost Programmer
■Gang Programmer
ST52T520/E520
2/4
Figure 1. ST52x520 Block Diagram
PORT A
TIMER/PWM 0
PORT C
TIMER/PWM 1
I2C
PA7:0
SPI
WATCHDOG
PC5:0
PORT B
PB7:0
ADC
PROGRAM
MEMORY
EPROM/OTP
DATA RAM
256 bytes
MEMORY
INTERFACE
CORE
DECISION
PROCESSOR
CONTROL
UNIT
Register File
256 bytes Input
registers
PC FLAGS
POWER SUPPLY
&LVD POWER ON
RESET
OSCILLATOR
VDD VPP VSS OSCIN OSCOUT RESET
ALU &
DPU
ST52T520/E520
3/4
Table 2. ST52x520 Common Features
Legend:
Table 1. ST52x520 Devices Summary
Device NVM RAM EEPROM Timers ADC Comms I/O Package
ST52T520F0py 1 K OTP 256 - 2X16-bit 8-bit
6Ch I
2
C14 Dip/So 20
ST52T520G0py 1 K OTP 256 - 2X16-bit 8-bit
8Ch I
2
CSPI 22 Dip/So 28
ST52T520F1py 2 K OTP 256 - 2X16-bit 8-bit
6Ch I
2
C14 Dip/So 20
ST52T520G1py 2 K OTP 256 - 2X16-bit 8-bit
8Ch I
2
CSPI 22 Dip/So 28
ST52T520F2py 4 K OTP 512 - 2X16-bit 8-bit
6Ch I
2
C14 Dip/So 20
ST52T520G2py 4 K OTP 512 - 2X16-bit 8-bit
8Ch I
2
CSPI 22 Dip/So 28
ST52T520F3py 8 K OTP 512 - 2X16-bit 8-bit
6Ch I
2
C14 Dip/So 20
ST52T520G3py 8 K OTP 512 - 2X16-bit 8-bit
8Ch I
2
CSPI 22 Dip/So 28
ST52E520F3D6 8 K EPROM 512 - 2X16-bit 8-bit
6Ch I
2
C14 CDip 20
ST52E520G3D6 8 K EPROM 512 - 2X16-bit 8-bit
8Ch I
2
CSPI 22 CDip 28
COMMON FEATURES ST52x520
Watchdog Yes
Other Features NMI, LVD, POR
Temperature Range From -40°to +85°
Operating Supply 3 - 5.5 V
CPU Frequency from 1 to 24 MHz.
Sales code: ST52tnnncmpy
Memory type (t): F=FLASH, T=OTP, E=EPROM
Subfamily (nnn): 500, 503, 504, 510, 513, 514, 520, 521, 530
Pin Count (c): Y=16 pins, F=20 pins, G=28 pins, K=32/34 pins, J=42/44 pins
Memory Size (m): 0=1 Kb, 1=2 Kb, 2=4 Kb, 3=8 Kb
Packages (p): B=PDIP, D=CDIP, M=PSO, T=TQFP
Temperature (y): 0=+25, 1=0 +70, 3=-40 +125, 5=-10 +85, 6=-40 +85, 7=-40 +105
ST52T520/E520
4/4
Full Product Information at http://mcu.st.com
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to
change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
© 2001 STMicroelectronics – Printed in Italy – All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
Australia - Brazil - China - Canada - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta
- Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A.
http://www.st.com