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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT45F23 датащи(PDF) 16 Page - Holtek Semiconductor Inc |
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HT45F23 датащи(HTML) 16 Page - Holtek Semiconductor Inc |
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16 / 152 page  A.C. Characteristics Ta=25 °C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions fSYS1 System Clock (Crystal OSC, ERC OSC, HIRC OSC) ¾ 2.2V~5.5V 400 ¾ 4000 kHz 3.3V~5.5V 400 ¾ 8000 kHz 4.5V~5.5V 400 ¾ 12000 kHz fSYS2 System Clock (32768Hz Crystal OSC) ¾ 2.2V~5.5V ¾ 32768 ¾ Hz fLXT System Clock (LXT) ¾¾ ¾ 32768 ¾ Hz fERC 4MHz External RC OSC (Note 4) 3.3V R=150k W, Ta=25°C -2% 4 +2% MHz 3.3V R=150k W, Ta=-40~85°C -8% 4 +8% MHz 2.7V~ 5.5V R=150k W, Ta=-40~85°C -15% 4 +15% MHz f8MIRC 8MHz Internal RC OSC 3.3V Ta=25 °C -2% 8 +2% MHz 3.3V Ta=-40~85 °C -5% 8 +5% MHz 2.7V~ 5.5V Ta=-40~85 °C -10% 8 +10% MHz f4MIRC 4MHz Internal RC OSC 3.3V Ta=25 °C -2% 4 +2% MHz 3.3V Ta=-40~85 °C -5% 4 +5% MHz 2.7V~ 5.5V Ta=-40~85 °C -10% 4 +10% MHz f2MIRC 2MHz Internal RC OSC 3.3V Ta=25 °C -2% 2 +2% MHz 3.3V Ta=-40~85 °C -5% 2 +5% MHz 2.7V~ 5.5V Ta=-40~85 °C -10% 2 +10% MHz f910KIRC 910kHz Internal RC OSC 3.3V Ta=25 °C -2% 0.91 +2% MHz 3.3V Ta=-40~85 °C -5% 0.91 +5% MHz 2.7V~ 5.5V Ta=-40~85 °C -10% 0.91 +10% MHz tRC32K 32678 RC Period 3V ¾ 28.10 31.25 34.40 ms tRES External Reset Low Pulse Width ¾¾ 1 ¾¾ ms tLVR Low Voltage width to Reset ¾¾ 120 240 480 tSUB tLVD Low Voltage width to Interrupt ¾¾ 1 ¾ 2 tSUB tLVDS LVDO Stable Time 5V LVR disable, LVD enable, VBG is ready ¾¾ 100 ms tSST1 System start-up timer period (W/O fast start-up) of XTAL/TBC ¾ Power up or wake-up from Sleep mode ¾ 1024 ¾ tSYS* (Note 1) tSST2 System start-up timer period of ERC, HIRC, EC, LIRC ¾ Power up or wake-up from HALT (Idle or Sleep mode) ¾ 12 tSYS Rev. 1.20 16 September 15, 2011 HT45F23/HT45F43 8-Bit Flash MCU with Op Amps & Comparators |
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