- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄360656 > 9S12H256BDGV1 9S12H256B Device Guide PDF資料下載
參數(shù)資料
| 型號： | 9S12H256BDGV1 |
| 英文描述： | 9S12H256B Device Guide |
| 中文描述： | 9S12H256B設備指南 |
| 文件頁數(shù)： | 108/130頁 |
| 文件大小： | 2171K |
| 代理商： | 9S12H256BDGV1 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁當前第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁
MC9S12H256 Device User Guide — V01.18
108
A.4.1.4 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.
A.4.1.5 Pseudo Stop and Wait Recovery
The recovery from Pseudo STOP and Wait are essentially the same since the oscillator was not stopped in
both modes. The controller can be woken up by internal or external interrupts. After t
wrs
the CPU starts
fetching the interrupt vector.
A.4.2 Oscillator
The device features an internal Colpitts oscillator. By asserting the XCLKS input during reset this
oscillator can be bypassed allowing the input of a square wave. Before asserting the oscillator to the
internal system clocks the quality of the oscillation is checked for each start from either power-on, STOP
oroscillatorfail.t
CQOUT
specifiesthemaximumtimebeforeswitchingtotheinternalselfclockmodeafter
POR or STOP if a proper oscillation is not detected. The quality check also determines the minimum
oscillator start-up time t
UPOSC
. The device also features a clock monitor. A Clock Monitor Failure is
asserted if the frequency of the incoming clock signal is below the Assert Frequency f
CMFA.
Table A-14 Oscillator Characteristics
Conditions are shown in
Table A-4
unless otherwise noted
Num C
Rating
Symbol
Min
Typ
Max
Unit
1
C Crystal oscillator range
f
OSC
0.5
16
MHz
2
P Startup Current
i
OSC
100
μ
A
3
D Oscillator start-up time from POR or STOP
n
UPOSC
4100
cyc
OSC
4
C Oscillator start-up time
t
UPOSC
8
1
NOTES
:
1. f
osc
= 4MHz, C = 22pF.
2. Maximum value is for extreme cases using high Q, low frequency crystals
100
2
ms
5
D Clock Quality check time-out
t
CQOUT
0.45
2.5
s
6
P Clock Monitor Failure Assert Frequency
f
CMFA
50
100
200
KHz
7
P External square wave input frequency
3
f
EXT
0.5
32
MHz
8
D External square wave pulse width low
t
EXTL
15
ns
9
D External square wave pulse width high
t
EXTH
15
ns
10
D External square wave rise time
t
EXTR
1
ns
11
D External square wave fall time
t
EXTF
1
ns
12
D Input Capacitance EXTAL pin
C
IN
9
pF
13
D Input Capacitance XTAL pin
C
IN
13
pF
14
C
DC Operating Bias in Colpitts Configuration on
EXTAL Pin
V
DCBIAS
1.1
V
F
For More Information On This Product,
Go to: www.freescale.com
n
.
相關PDF資料 |
PDF描述 |
|---|---|
| 9S12KT256DGV1 | MC9S12KT256 Device User Guide |
| 9S12T64AF16V1 | 9S12T64 Device Guide |
| 9S12XDP512DGV1 | Device User Guide for Mask Set 0L40V ( First Silicon) |
| 9S12XDP512DGV2 | Device User Guide for Mask Set L15Y - (Second Silicon - Enhanced Feature Set) |
| 9V3 | ELEMENT 10 MICRON E MEDIA |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 9S12HN64 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Microcontroller |
| 9S12HZ128 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Microcontroller |
| 9S12HZ256 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Microcontroller |
| 9S12HZ64 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Microcontroller |
| 9S12KT256DGV1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MC9S12KT256 Device User Guide |
發(fā)布緊急采購，3分鐘左右您將得到回復。