- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄371046 > MC68CK338 (Motorola, Inc.) Highly Integrated, Low-Power, 32-Bit Microcontroller PDF資料下載
參數(shù)資料
| 型號： | MC68CK338 |
| 廠商： | Motorola, Inc. |
| 元件分類： | 32位微控制器 |
| 英文描述： | Highly Integrated, Low-Power, 32-Bit Microcontroller |
| 中文描述： | 高度集成，低功耗，32位微控制器 |
| 文件頁數(shù)： | 118/133頁 |
| 文件大小： | 798K |
| 代理商： | MC68CK338 |
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頁當(dāng)前第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頁第131頁第132頁第133頁
MOTOROLA
118
MC68CK338
MC68CK338TS/D
NOTES:
1. All AC timing is shown with respect to 20% V
DD
and 70% V
DD
levels unless otherwise noted.
2. When an external clock is used, minimum high and low times are based on a 50% duty cycle. The minimum
allowable t
Xcyc
period is reduced when the duty cycle of the external clock varies. The relationship between ex-
ternal clock input duty cycle and minimum t
Xcyc
is expressed:
Minimum t
Xcyc
period = minimum t
XCHL
/ (50% – external clock input duty cycle tolerance).
3. Specification 9A is the worst-case skew between AS and DS or CS. The amount of skew depends on the relative
loading of these signals. When loads are kept within specified limits, skew will not cause AS and DS to fall out-
side the limits shown in specification 9.
4. If multiple chip selects are used, CS width negated (specification 15) applies to the time from the negation of a
heavily loaded chip select to the assertion of a lightly loaded chip select. The CS width negated specification
between multiple chip selects does not apply to chip selects being used for synchronous ECLK cycles.
5. Hold times are specified with respect to DS or CS on asynchronous reads and with respect to CLKOUT on fast
cycle reads. The user is free to use either hold time.
6. Maximum value is equal to (t
cyc
/ 2) + 25 ns.
7. If the asynchronous setup time (specification 47A) requirements are satisfied, the DSACK[1:0] low to data setup
time (specification 31) and DSACK[1:0] low to BERR low setup time (specification 48) can be ignored. The data
must only satisfy the data-in to clock low setup time (specification 27) for the following clock cycle. BERR must
satisfy only the late BERR low to clock low setup time (specification 27A) for the following clock cycle.
8. To ensure coherency during every operand transfer, BG is not asserted in response to BR until after all cycles
of the current operand transfer are complete.
9. In the absence of DSACK[1:0], BERR is an asynchronous input using the asynchronous setup time (specification
47A).
10. After external RESET negation is detected, a short transition period (approximately 2 t
cyc
) elapses, then the SIML
drives RESET low for 512 t
cyc
.
11. External assertion of the RESET input can overlap internally-generated resets. To ensure that an external reset
is recognized in all cases, RESET must be asserted for at least 590 CLKOUT cycles.
12. External logic must pull RESET high during this period in order for normal MCU operation to begin.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68EC060 | 32-Bit Microprocessors.(32位微處理器) |
| MC68EN360RC25V | QUad Integrated Communications Controller Users Manual |
| MC68EN360CFE25 | QUad Integrated Communications Controller Users Manual |
| MC68EN360FE25 | AC 4C 4#12 PIN PLUG 023 |
| MC68EN360FE25V | QUad Integrated Communications Controller Users Manual |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68CK338CPV14 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC68CK338CPV14B1 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:32-Bit Modular Microcontroller |
| MC68CM16Z1 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
| MC68CM16Z1CFC16 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
| MC68CM16Z1CPV16 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。