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參數(shù)資料
| 型號： | ZTB500E |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 4-BIT SINGLE CHIP MICROCOMPUTERS |
| 中文描述： | 4位單片機(jī)微機(jī) |
| 文件頁數(shù)： | 26/49頁 |
| 文件大?。?/td> | 328K |
| 代理商： | ZTB500E |
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2 - 8
Initial Reset Circuit
RESET pin must be down to "L" more than 4 machine cycle by outside
capacitor or other for power on reset.
The mean of 1 machine cycle is 6/f
OSC
or 48/f
OSC
, however, operating voltage
must be in recommended operating conditions, and clock oscillating stability.
* It is required to adjust C value depending on rising time of power supply.
(Example shows the case of rising time shorter than 10ms.)
1
RESET
0.1uF
Chapter 2. Architecture
Watch Dog Timer (WDT)
Watch dog timer is organized binary of 14 steps. The signal of f
OSC
/6 cycle comes
in the first step of WDT after WDT reset. If this counter was overflowed, reset
signal automatically come out so that internal circuit is initialized.
2
13
/f
OSC
(108.026ms at f
OSC
=455KHz.)
8
6
2
13
/f
OSC
(108.026ms at f
OSC
= 3.64MHz)
Normally, the binary counter must be reset before the overflow by using reset
instruction (WDTR) or / and REMOUT port HIGH(Y-reg=8, So instruction execution).
* It is constantly reset in STOP mode. When STOP is released, counting is
restarted. (Refer to 2-9 STOP function>)
Binary counter
(14 steps)
RESET (edge-trigger)
f
OSC
/6 or f
OSC
/48
CPU reset
Reset
by instruction
REMOUT
output
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZTB500F2 | 制造商:TOKEN 制造商全稱:Token Electronics Industry Co., Ltd. 功能描述:ZTB 456/500/503/912F RESONATORS |
| ZTB500F25 | 制造商:TOKEN 制造商全稱:Token Electronics Industry Co., Ltd. 功能描述:ZTB 456/500/503/912F RESONATORS |
| ZTB500F25P | 制造商:TOKEN 制造商全稱:Token Electronics Industry Co., Ltd. 功能描述:ZTB 456/500/503/912F RESONATORS |
| ZTB500F25TR | 制造商:TOKEN 制造商全稱:Token Electronics Industry Co., Ltd. 功能描述:ZTB 456/500/503/912F RESONATORS |
| ZTB500F2P | 制造商:TOKEN 制造商全稱:Token Electronics Industry Co., Ltd. 功能描述:ZTB 456/500/503/912F RESONATORS |
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