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參數(shù)資料
| 型號： | LC72336 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Single-Chip Microcontrollers with Built-In LCD Driver and PLL Circuits |
| 中文描述： | 單片微控制器，內(nèi)置在LCD驅(qū)動和PLL電路 |
| 文件頁數(shù)： | 8/16頁 |
| 文件大?。?/td> | 185K |
| 代理商： | LC72336 |
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No. 5157-8/16
LC72336, 72338
Continued on next page.
Pin No.
Symbol
I/O
I/O type
Function
72
71
SNS
LCTR
I
I
CMOS input
CMOS amplifier
input
Shared-function voltage sensing input and general-purpose input port
The input threshold voltage is set lower than that of other inputs.
When used as a voltage sensing pin:
This pin is used to recognize power failures on recovery from backup (clock stop) mode.
An internal sensing flip-flop is used for this determination. The TUL instruction (b2) can
be used to test the sense flip-flop.
When used as a general-purpose input port:
Use the TUL instruction (b3) to test this pin when it is used as a general-purpose input
port.
Unlike other input ports, input is not disabled during clock stop mode or a power-on reset.
Thus applications must take through currents into consideration if this pin is used as a
general-purpose input port.
Shared-function universal counter (frequency or period measurement) and general-
purpose input port
The IOS instruction (Pn = 3, b3) is used to switch this pin between its universal counter
and general-purpose input port functions.
When used for frequency measurement:
Select the universal counter function with an IOS instruction (Pn = 3, b3 = 0).
Set LCTR frequency measurement mode with a UCS instruction (b3 = 0, b2 = 1). After
selecting the measurement time, start the counter with a UCC instruction.
The CNTEND flag will be set when the count completes.
Since this circuit operates as an AC amplifier in this mode, the input must be capacitor
coupled.
When used for period measurement:
With the universal counter function selected, set period measurement mode with a UCS
instruction (b3 = 1, b2 = 0). After selecting the measurement time, start the counter with
a UCC instruction.
The CNTEND flag will be set when the count completes.
Since the bias feedback resistor is switched off in this mode, the input must be DC
coupled.
When used as a general-purpose input port:
Specify the general-purpose input port function with an IOS instruction (Pn = 3, b3 = 1).
Use the INR (b1) internal register (address 0EH) input instruction to read in the input
data.
Input is disabled in clock stop mode. (The input pin is pulled down.)
The universal counter function is selected after a power-on reset. (HCTR frequency
measurement mode.)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC72338 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Chip Microcontrollers with Built-In LCD Driver and PLL Circuits |
| LC7233N | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Chip PLL and Microcontroller with LCD Driver |
| LC7233N-8818 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Chip PLL and Controller with LCD Driver |
| LC7234 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Chip PLL and Microcontroller with LCD Driver |
| LC72341 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Low-Voltage Single-Chip Microcontrollers with On- Chip PLL and LCD Driver Circuits |
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