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參數(shù)資料
| 型號(hào)： | S1C63408F0A0100 |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | MICROCONTROLLER, PQFP128 |
| 封裝： | PLASTIC, QFP-128 |
| 文件頁(yè)數(shù)： | 66/151頁(yè) |
| 文件大?。?/td> | 1171K |
| 代理商： | S1C63408F0A0100 |
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S1C63406/408 TECHNICAL MANUAL
EPSON
13
CHAPTER 2: POWER SUPPLY AND INITIAL RESET
2.2 Initial Reset
To initialize the S1C63406/408 circuits, initial reset must be executed. There are three ways of doing this.
(1) External initial reset by the RESET terminal
(2) External initial reset by simultaneous low input to terminals K00–K03 (mask option)
(3) Internal initial reset by the reset circuit (mask option)
When the power is turned on, be sure to initialize using the reset function. Figure 2.2.1 shows the con-
figuration of the initial reset circuit.
RESET
K00
K01
K02
K03
OSC2
OSC1
RQ
S
Internal
initial
reset
Divider
VDD
1 kHz
1 Hz
16 Hz
VDD
OSC1
oscillation
circuit
Noise
reject
circuit
Time
authorize
circuit
Reset
circuit
Reset signal
Mask option
Fig. 2.2.1 Configuration of initial reset circuit
2.2.1 Reset terminal (RESET)
Initial reset can be executed externally by setting the reset terminal to a low level (VSS). After that the
initial reset is released by setting the reset terminal to a high level (VDD) and the CPU starts operation.
The reset input signal is maintained by the RS latch and becomes the internal initial reset signal. The RS
latch is designed to be released by a 16 Hz signal (high) that is divided by the OSC1 clock. Therefore in
normal operation, a maximum of 1024/fOSC1 seconds (32 msec when fOSC1 is 32.768 kHz) is needed until
the internal initial reset is released after the reset terminal goes to high level. Be sure to maintain a reset
input of 0.1 msec or more.
However, when turning the power on, the reset terminal should be set at a low level as in the timing
shown in Figure 2.2.1.1.
VDD
RESET
2.0 msec or more
1.3 V
0.5VDD
0.1VDD or less (low level)
Power on
Fig. 2.2.1.1 Initial reset at power on
The reset terminal should be set to 0.1VDD or less (low level) until the supply voltage becomes 1.3 V or
more.
After that, a level of 0.5VDD or less should be maintained more than 2.0 msec.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S1C63406D0A0100 | MICROCONTROLLER, UUC103 |
| S1C63455F | 4-BIT, MROM, 4.1 MHz, MICROCONTROLLER, PQFP128 |
| S1C63455D | 4-BIT, MROM, 4.1 MHz, MICROCONTROLLER, UUC105 |
| S1C63458F0A0100 | MICROCONTROLLER, PQFP144 |
| S1C63466D | 4-BIT, MROM, 4.1 MHz, MICROCONTROLLER, UUC140 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S1C63557D04Q000 | 制造商:Seiko Instruments Inc (SII) 功能描述:EPSON MCU 4BIT |
| S1C63567 | 制造商:EPSON 制造商全稱:EPSON 功能描述:4-bit Single Chip Microcomputer |
| S1C63616 | 制造商:EPSON 制造商全稱:EPSON 功能描述:4-bit Single Chip Microcomputer |
| S1C63632 | 制造商:EPSON 制造商全稱:EPSON 功能描述:4-bit Single Chip Microcomputer |
| S1C63653 | 制造商:EPSON 制造商全稱:EPSON 功能描述:CMOS 4-bit Single Chip Microcontroller |
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