- 您现在的位置：买卖IC网 > PDF目录297644 > UPSD3253B-40T6 (STMICROELECTRONICS) 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP52 PDF资料下载
参数资料
| 型号： | UPSD3253B-40T6 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP52 |
| 封装： | PLASTIC, TQFP-52 |
| 文件页数： | 26/189页 |
| 文件大小： | 1638K |
| 代理商： | UPSD3253B-40T6 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页当前第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页第143页第144页第145页第146页第147页第148页第149页第150页第151页第152页第153页第154页第155页第156页第157页第158页第159页第160页第161页第162页第163页第164页第165页第166页第167页第168页第169页第170页第171页第172页第173页第174页第175页第176页第177页第178页第179页第180页第181页第182页第183页第184页第185页第186页第187页第188页第189页
Obsolete
Product(s)
- Obsolete
Product(s)
UPSD3254A, UPSD3254BV, UPSD3253B, UPSD3253BV
Memory blocks
121/189
Suspend Sector Erase is accepted only during an Erase cycle and defaults to READ mode.
A Suspend Sector Erase instruction executed during an Erase time-out period, in addition to
suspending the Erase cycle, terminates the time out period.
The Toggle Flag bit (DQ6) stops toggling when the internal logic is suspended. The status of
this bit must be monitored at an address within the Flash memory sector being erased. The
Toggle Flag bit (DQ6) stops toggling between 0.1s and 15s after the Suspend Sector
Erase instruction has been executed. The Flash memory is then automatically set to READ
mode.
If an Suspend Sector Erase instruction was executed, the following rules apply:
●
Attempting to read from a Flash memory sector that was being erased outputs invalid
data.
●
Reading from a Flash sector that was not being erased is valid.
●
The Flash memory cannot be programmed, and only responds to Resume Sector
Erase and Reset Flash instructions (READ is an operation and is allowed).
●
If a Reset Flash instruction is received, data in the Flash memory sector that was being
erased is invalid.
22.7.4
Resume Sector Erase
If a Suspend Sector Erase instruction was previously executed, the erase cycle may be
resumed with this instruction. The Resume Sector Erase instruction consists of writing 030h
to any address while an appropriate Sector Select (FS0-FS7 or CSBOOT0-CSBOOT3) is
High. (See Table 85.)
22.8
Specific features
22.8.1
Flash memory sector protect
Each primary and secondary Flash memory sector can be separately protected against
Program and Erase cycles. Sector Protection provides additional data security because it
disables all Program or Erase cycles. This mode can be activated through the JTAG Port or
a Device Programmer.
Sector protection can be selected for each sector using the PSDsoft Express Configuration
program. This automatically protects selected sectors when the device is programmed
through the JTAG Port or a Device Programmer. Flash memory sectors can be unprotected
to allow updating of their contents using the JTAG Port or a Device Programmer. The MCU
can read (but cannot change) the sector protection bits.
Any attempt to program or erase a protected Flash memory sector is ignored by the device.
The Verify operation results in a READ of the protected data. This allows a guarantee of the
retention of the Protection status.
The sector protection status can be read by the MCU through the Flash memory protection
相关PDF资料 |
PDF描述 |
|---|---|
| UPSD3334D-40U6 | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP80 |
| US1001FL | 0.5 A, 100 V, SILICON, SIGNAL DIODE |
| US1A-HE3 | 1 A, 50 V, SILICON, SIGNAL DIODE, DO-214AC |
| US1B-HE3 | 1 A, 100 V, SILICON, SIGNAL DIODE, DO-214AC |
| US1G-HE3 | 1 A, 400 V, SILICON, SIGNAL DIODE, DO-214AC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| UPSD3253B-40T6T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core |
| UPSD3253B-40U1 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core |
| UPSD3253B-40U1T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core |
| UPSD3253B-40U6 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core |
| UPSD3253B-40U6T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core |
发布紧急采购，3分钟左右您将得到回复。