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參數(shù)資料
| 型號： | EM6617VVVST11A |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 0.032768 MHz, RISC MICROCONTROLLER |
| 封裝： | STICKY TAPE |
| 文件頁數(shù)： | 51/66頁 |
| 文件大小： | 759K |
| 代理商： | EM6617VVVST11A |
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EM6617-1
EM Microlectronic-Marin SA , 3/99 Rev. B/258
51
19.1.4 SWB high impedance state
By default the SWB Clock output is driven to logic ‘0’
outside a transmission. The user may choose high
impedance state on Clock output instead of logic’0’.
By default the SWB Data output is driven to logic ‘0’
outside a transmission. The user may choose high
impedance state on Data output instead of logic’0’.
19.1.5 Debouncer Frequency Option
By default the debouncer frequency is Ck[11]. The
user may choose Ck[14] instead of Ck[11].
Ck[14 ]corresponds to maximum 0.25ms debouncer
time in case of a 32kHz oscillator.
19.1.6 System Frequency
By default the system frequency is defined as being
32kHz. Higher Frequencies are possible. A second
setting guarantees typical write times for the EPROM
at a system frequency of 128 kHz.
19.1.7 Additional mask options
Other functions and parameters may also be changed using the metal 1 mask (i.e SVLD levels). Please
contact EM Marin if you have a special request.
The customer should specify the required options at the time of ordering. A copy of
the pages 48 to 51
as well as the Software ROM characteristic file generated by
the assembler (*.STA) should be attached to the order. Also the Customer package
marking should be defined at that time.
Option
Name
NO
A
Yes
B
MSWBZ_Clk
SWB Clock high
impedance state.
Option
Name
NO
A
Yes
B
MSWBZ_Dat
SWB Data high
impedance state.
Option
Name
Ck[11]
A
Ck[14]
B
MDeb
Debouncer freq.
Option
Name
32kHz
128kHz
A
B
MFreq
System frequency
= Xtal frequency
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