EEWORLDEEWORLDEEWORLD

Part Number

Search

ST72T121J2

Description
8-BIT MCU WITH 8 TO 16K OTP/EPROM, 384 TO 512 BYTES RAM, WDG, SCI, SPI AND 2 TIMERS
File Size606KB,92 Pages
ManufacturerSTMicroelectronics
Websitehttp://www.st.com/
Download Datasheet View All

ST72T121J2 Overview

8-BIT MCU WITH 8 TO 16K OTP/EPROM, 384 TO 512 BYTES RAM, WDG, SCI, SPI AND 2 TIMERS

ST72E121
ST72T121
8-BIT MCU WITH 8 TO 16K OTP/EPROM,
384 TO 512 BYTES RAM, WDG, SCI, SPI AND 2 TIMERS
DATASHEET
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
User Program Memory (OTP/EPROM):
8 to 16K bytes
Data RAM: 384 to 512 bytes including 256 bytes
of stack
Master Reset and Power-On Reset
Low Voltage Detector (LVD) Reset option
Run and Power Saving modes
32 multifunctional bidirectional I/O lines:
– 9 programmable interrupt inputs
– 4 high sink outputs
– 13 alternate functions
– EMI filtering
Software or Hardware Watchdog (WDG)
Two 16-bit Timers, each featuring:
– 2 Input Captures
1)
– 2 Output Compares
1)
– External Clock input (on Timer A)
– PWM and Pulse Generator modes
Synchronous Serial Peripheral Interface (SPI)
Asynchronous Serial Communications Interface
(SCI)
8-bit Data Manipulation
63 basic Instructions and 17 main Addressing
Modes
8 x 8 Unsigned Multiply Instruction
True Bit Manipulation
Complete Development Support on DOS/
WINDOWS
TM
Real-Time Emulator
Full Software Package on DOS/WINDOWS
TM
(C-Compiler, Cross-Assembler, Debugger)
PSDIP42
CSDIP42W
TQFP44
(See ordering information at the end of datasheet)
Note: 1.
One only on Timer A.
Device Summary
Features
Program Memory - bytes
RAM (stack) - bytes
Peripherals
Operating Supply
CPU Frequency
Temperature Range
Package
OTP/EPROM Devices
ST72T121J2
ST72T121J4
8K
16K
384 (256)
512 (256)
Watchdog, Timers, SPI, SCI and optional Low Voltage Detector Reset
3 to 5.5 V
8MHz max (16MHz oscillator) - 4MHz max over 85°C
- 40°C to + 125°C
TQFP44 - SDIP42
ST72T121J4/ST72E121J4
Note:
The ROM versions are supported by the ST72124 family.
Rev. 1.7
September 1999
1/92
1
How to understand the 44b0 header file bit declaration?
#define BIT_ADC (0x1) #define BIT_RTC (0x1<<1) #define BIT_UTXD1 (0x1<<2) #define BIT_UTXD0 (0x1<<3) #define BIT_SIO (0x1<<4) #define BIT_IIC (0x1<<5) #define BIT_URXD1 (0x1<<6) #define BIT_URXD0 (0x1...
hamsun2008 Embedded System
Please advise: What is the impact of wireless modules working in a wide voltage range?
The wireless IC data sheet says that the operating voltage range is 1.8V~3.7V. It is powered directly by dry batteries. The battery voltage changes greatly over time, but it is also within this range,...
pcf2000 RF/Wirelessly
LPC1114+MP3+digital photo frame+e-book schematic diagram
I am planning to use LPC1114 to make an MP3+digital photo frame+e-book. Below is the schematic diagram of the preliminary design. I hope you can take a look at it. Are there any problems with the desi...
zhaojun_xf NXP MCU
Commonly used 3D files for AD, SOT23 series, SOP8 series, various resistor and capacitor packaging series, as well as USB, diodes
Commonly used 3D files for AD, SOT23 series, SOP8 series, various resistor and capacitor packaging series, as well as USB, diodes, LED...
779872139 PCB Design
Lithium-ion Battery Monitoring – Is Redundancy Required?
Lithium-Ion Battery Monitoring—Does It Need Redundancy? By Steven Boyle Introduction As development of hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), and pure electric vehi...
dontium ADI Reference Circuit
Questions about the use of zinc, please answer the master
In zinc6.1, define a zafstring *testString = new zafString(); then add testString to the window, enter data in the control, such as 12345, and use the program to get the value. Why can testString -Tex...
viviangle Embedded System

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2772  2773  2690  868  2426  56  55  18  49  54 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号