參數(shù)資料
型號(hào)： uPSD3212C
廠商： 意法半導(dǎo)體
英文描述： Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM(帶8032微控制器內(nèi)核和16Kbit SRAM的FLASH可編程系統(tǒng)器件)
中文描述： 閃存可編程系統(tǒng)設(shè)備與8032微控制器內(nèi)核和16Kbit的SRAM（帶8032微控制器內(nèi)核和16Kbit SRAM的的閃存可編程系統(tǒng)器件）
文件頁數(shù)： 47/151頁
文件大?。?/td> 1194K
代理商： UPSD3212C
47/151
uPSD3212C, uPSD3212CV
SUPERVISORY
There are four ways to invoke a reset and initialize
the uPSD321X Devices.
Via the external RESET pin
Via the internal LVR Block.
Via Watch Dog timer
The RESET mechanism is illustrated in Figure 19.
Each RESET source will cause an internal reset
signal active. The CPU responds by executing an
internal reset and puts the internal registers in a
defined state. This internal reset is also routed as
an active low reset input to the PSD Module.
External Reset
The RESET pin is connected to a Schmitt trigger
for noise reduction. A RESET is accomplished by
holding the RESET pin LOW for at least 1ms at
power up while the oscillator is running. Refer to
AC spec on other RESET timing requirements.
■
■
■
Low V
DD
Voltage Reset
An internal reset is generated by the LVR circuit
when the V
DD
drops below the reset threshold. Af-
ter V
DD
reaching back up to the reset threshold,
the RESET signal will remain asserted for 10ms
before it is released. On initial power-up the LVR
is enabled (default). After power-up the LVR can
be disabled via the LVREN Bit in the PCON Reg-
ister.
Note:
The LVR logic is still functional in both the
Idle and Power-down Modes.
The reset threshold:
5V operation: 4V +/- 0.25V
3.3V operation: 2.5V +/-0.2V
This logic supports approximately 0.1V of hystere-
sis and 1μs noise-cancelling delay.
Watchdog Timer Overflow
The Watchdog Timer generates an internal reset
when its 22-bit counter overflows. See Watchdog
Timer section for details.
■
■
Figure 19. RESET Configuration
AI07429
Reset
CPU
&
PERI.
Noise
Cancel
LVR
S
Q
R
CPU
Clock
Sync
10ms
Timer
WDT
PSD_RST
“
Active Low
10ms at 40Mhz
50ms at 8Mhz
相關(guān)PDF資料
PDF描述
uPSD3212CV Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM(帶8032微控制器內(nèi)核和16Kbit SRAM的FLASH可編程系統(tǒng)器件)
uPSD3212 Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可編程系統(tǒng)器件)
UPSD3215A-24T1 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
UPSD3215AV-40T6T 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
UPSD3215BV-24U1 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPSD3212C-24T1T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM
UPSD3212C-24T6T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
UPSD3212C-24U1T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM
UPSD3212C-24U6T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
UPSD3212C-40T1T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*