Universal infrared remote control circuit
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Shanghai Belling-Systron Microelectronics Co., Ltd.
ԡᏺ57&ⱘ0$6.ऩ⠛ᴎ⠛%/
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Description
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Ϟ⍋ኁⷑ߯ᖂ⬉ᄤ᳝݀ৌ
Shanghai Belling-Systron Microelectronics Co., Ltd.
ԡᏺ57&ⱘ0$6.ऩ⠛ᴎ⠛%/
%/ Сଶޏ೬ֳڟ
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ᴀᅮњ BL3501 ⬉ⱘᡔᴃᣛᷛঞ BENCH TEST Ⳃ QC ⌟ᷛޚDŽ
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BL3501 ᰃϔℒ⫼఼⬉ˈᰃᇍ఼⬉ⱘ⡍⚍ϧⱘᖂࠊ఼ ˄MCU˅ऩܗDŽBL3501 ৃҹ⫼Ѣ㉏ᆊ⬉˄བ⬉ǃVCD ᴎㄝ˅ⱘ఼ˈᅠ៤ᣝ ⱘᠿᦣⷕֵোⱘ⫳៤ˈᑊᦤկᯊᰒǃᅮᯊㄝࡳDŽ⬅ѢᏖഎϞⱘ఼ⷕ ᮍᓣ᳝ᕜˈⳌݭᑨⱘᑣDŽˈBL3501 гৃҹ⫼Ѣ LCDǃLED ᰒⱘ ⬉ᄤᯊ⬉DŽ
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⡍⚍˖ ᣛҸϢ BL2220 ݐᆍ CPU˖8 ԡ ROM ऩ˖ܗ2K byte RAM ऩ˖ܗ64 byte ᤃ⬉˖455KHz˄Џᤃ˅ ǃ32.768Hz˄RTC ᤃ˅ I/O ষ˖2 8 ԡঠষ ⷕֵোߎষ˖ৃӊᢽ 38KHz ࠊ ᣝᠿᦣⱘ᳔᭄Ⳃ˖64 ݊Ҫೈ⬉˖ᅲᯊᯊ˄RTC˅ ǃ8 ԡৃᅮᯊ఼ Ꮉ⬉⑤⬉य़˖2.5̚5.0V Ꮉ⏽ᑺ˖-20̚80к ᗕࡳ˖< 10uA @ VDD = 3V
⬉˖Ӵⳳ˖ഔZZZV\VWURQVKFQ RI
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Shanghai Belling-Systron Microelectronics Co., Ltd.
ԡᏺ57&ⱘ0$6.ऩ⠛ᴎ⠛%/
ࡼᗕࡳ˖< 1mA @ VDD = 3V ࡴᎹᎹ˖Belling 1.2um ᷛ ޚCMOS ᇕᔶᓣ˖SOP-24 Ḛ˖
USER MASK ROM - 2K BYTES EOSC1 EOSC2
OSC-II
Real Time Clock SRAM - 64 BYTES
7
0
KEYBOARD INTERRUPT
D D R
ACCUMULATOR 7 0 A
P O R T A
8 PA0~PA7
INDEX REGISTER 12 0
STACK POINTER 15 0 D D R P O R T B 8 PB0~PB7
PROGRAM COUNTER 7 RST RESET BUS-CLOCK CONDITION CODE REGISTER 0
B
OSC1 OSC2
OSC-I
7-BIT PRESCALER 8-BIT COUNTER TIMER CONTROL
38K modulate
OUT
⬉˖Ӵⳳ˖ഔZZZV\VWURQVKFQ RI
Ϟ⍋ኁⷑ߯ᖂ⬉ᄤ᳝݀ৌ
Shanghai Belling-Systron Microelectronics Co., Ltd.
ԡᏺ57&ⱘ0$6.ऩ⠛ᴎ⠛%/
߶ڕ
OSC1 OSC2 GND PB0 PB...
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