參數(shù)資料
型號： MC9S12DG128B
廠商： Motorola, Inc.
英文描述： MC9S12DT128B
中文描述： MC9S12DT128B
文件頁數(shù)： 103/124頁
文件大?。?/td> 577K
代理商： MC9S12DG128B
MC9S12DT128B Device User Guide — V01.07
103
A.5 Reset, Oscillator and PLL
This section summarizes the electrical characteristics of the various startup scenarios for Oscillator and
Phase-Locked-Loop (PLL).
A.5.1 Startup
Table A-14
summarizes several startup characteristics explained in this section. Detailed description of
the startup behavior can be found in the Clock and Reset Generator (CRG) Block User Guide.
Table A-14 Startup Characteristics
A.5.1.1 POR
The release level V
PORR
and the assert level V
PORA
are derived from the V
DD
Supply. They are also valid
ifthedeviceispoweredexternally.AfterreleasingthePORresettheoscillatorandtheclockqualitycheck
are started. If after a time t
CQOUT
no valid oscillation is detected, the MCU will start using the internal self
clock. The fastest startup time possible is given by n
uposc
.
A.5.1.2 SRAM Data Retention
Provided an appropriate external reset signal is applied to the MCU, preventing the CPU from executing
codewhenVDD5isoutofspecificationlimits,theSRAMcontentsintegrityisguaranteedifafterthereset
the PORF bit in the CRG Flags Register has not been set.
A.5.1.3 External Reset
When external reset is asserted for a time greater than PW
RSTL
the CRG module generates an internal
reset, and the CPU starts fetching the reset vector without doing a clock quality check, if there was an
oscillation before reset.
A.5.1.4 Stop Recovery
Out of STOP the controller can be woken up by an external interrupt. A clock quality check as after POR
is performed before releasing the clocks to the system.
Conditions are shown in
Table A-4
unless otherwise noted
Num C
Rating
Symbol
Min
Typ
Max
Unit
1
T POR release level
V
PORR
2.07
V
2
T POR assert level
V
PORA
0.97
V
3
D Reset input pulse width, minimum input time
PW
RSTL
2
t
osc
4
D Startup from Reset
n
RST
192
196
n
osc
5
D Interrupt pulse width, IRQ edge-sensitive mode
PW
IRQ
20
ns
6
D Wait recovery startup time
t
WRS
14
t
cyc
相關PDF資料
PDF描述
MC9S12DG128BCFU MC9S12DT128B
MC9S12DG128BCPV MC9S12DT128B
MC9S12DG128BMFU MC9S12DT128B
MC9S12DG128BMPV MC9S12DT128B
MC9S12DG128BVFU MC9S12DT128B
相關代理商/技術參數(shù)
參數(shù)描述
MC9S12DG128BCFU 功能描述:16位微控制器 - MCU 16 Bit 25MHz RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT
MC9S12DG128BCPV 功能描述:16位微控制器 - MCU 16 Bit 25MHz RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT
MC9S12DG128BMFU 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC9S12DG128BVFU 功能描述:16位微控制器 - MCU 16 Bit 25MHz RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT
MC9S12DG128CFU 制造商:FREESCALE-SEMI 功能描述:
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*