ETC CH4 fiche technique

No.	Partie #	Fabricant	Description
1	ECH41	ETC	Triode - Hexode / Frequency Changer
2	ECH42	ETC	Triode - Hexode / Frequency Changer
3	CH444P	ETC	SPDT low impedance analog switch chip 0.50mm 19.7mil 0.65mm 25mil 0.50mm 19.7mil 16 16 16 10 0.65mm 26mil 6 1.27mm 50mil 16 CH440G CH440P CH440R CH442E CH443K CH444G CH440、CH442、CH443、CH444、CH445 ３ QFN16 33mm 0.50mm 19.7mil 16 CH444P QFN16 33mm 0.50mm 19
4	ECH42	ETC	Triode Hexode / Frequency Changer
5	CH444G	ETC	SPDT low impedance analog switch chip 0.50mm 19.7mil 0.65mm 25mil 0.50mm 19.7mil 16 16 16 10 0.65mm 26mil 6 1.27mm 50mil 16 CH440G CH440P CH440R CH442E CH443K CH444G CH440、CH442、CH443、CH444、CH445 ３ QFN16 33mm 0.50mm 19.7mil 16 CH444P QFN16 33mm 0.50mm 19
6	CH440R	ETC	SPDT low impedance analog switch chip 0.50mm 19.7mil 0.65mm 25mil 0.50mm 19.7mil 16 16 16 10 0.65mm 26mil 6 1.27mm 50mil 16 CH440G CH440P CH440R CH442E CH443K CH444G CH440、CH442、CH443、CH444、CH445 ３ QFN16 33mm 0.50mm 19.7mil 16 CH444P QFN16 33mm 0.50mm 19
7	CH440P	ETC	SPDT low impedance analog switch chip 0.50mm 19.7mil 0.65mm 25mil 0.50mm 19.7mil 16 16 16 10 0.65mm 26mil 6 1.27mm 50mil 16 CH440G CH440P CH440R CH442E CH443K CH444G CH440、CH442、CH443、CH444、CH445 ３ QFN16 33mm 0.50mm 19.7mil 16 CH444P QFN16 33mm 0.50mm 19
8	CH440G	ETC	SPDT low impedance analog switch chip 0.50mm 19.7mil 0.65mm 25mil 0.50mm 19.7mil 16 16 16 10 0.65mm 26mil 6 1.27mm 50mil 16 CH440G CH440P CH440R CH442E CH443K CH444G CH440、CH442、CH443、CH444、CH445 ３ QFN16 33mm 0.50mm 19.7mil 16 CH444P QFN16 33mm 0.50mm 19
9	CH444	ETC	SPDT low impedance analog switch chip 0.50mm 19.7mil 0.65mm 25mil 0.50mm 19.7mil 16 16 16 10 0.65mm 26mil 6 1.27mm 50mil 16 CH440G CH440P CH440R CH442E CH443K CH444G CH440、CH442、CH443、CH444、CH445 ３ QFN16 33mm 0.50mm 19.7mil 16 CH444P QFN16 33mm 0.50mm 19
10	CH443	ETC	SPDT low impedance analog switch chip 0.50mm 19.7mil 0.65mm 25mil 0.50mm 19.7mil 16 16 16 10 0.65mm 26mil 6 1.27mm 50mil 16 CH440G CH440P CH440R CH442E CH443K CH444G CH440、CH442、CH443、CH444、CH445 ３ QFN16 33mm 0.50mm 19.7mil 16 CH444P QFN16 33mm 0.50mm 19
11	CH442	ETC	SPDT low impedance analog switch chip 0.50mm 19.7mil 0.65mm 25mil 0.50mm 19.7mil 16 16 16 10 0.65mm 26mil 6 1.27mm 50mil 16 CH440G CH440P CH440R CH442E CH443K CH444G CH440、CH442、CH443、CH444、CH445 ３ QFN16 33mm 0.50mm 19.7mil 16 CH444P QFN16 33mm 0.50mm 19
12	ECH4	ETC	Triode - Heptode
13	CH423	ETC	Two-wire remote I / O expansion chip （ U4）。（ U2 ）， CH423 OC15 ， IO7～IO0 ， IO7～IO0 ，CH423 OC15 。 5.6. CH423 （ R12 C11），。，，，。 5.7. CH423 2 ， 2 ： SCL、 SDA。 SDA ，。SDA ， 1， 0，，。 SCL ，。SCL ，CH423 SDA ， SDA 。 SCL SDA ， SCL SDA 。CH423 。 I/O ， SDA ， SCL ； SDA SCL ， SCL
14	CH445P	ETC	SPDT low impedance analog switch chip 0.50mm 19.7mil 0.65mm 25mil 0.50mm 19.7mil 16 16 16 10 0.65mm 26mil 6 1.27mm 50mil 16 CH440G CH440P CH440R CH442E CH443K CH444G CH440、CH442、CH443、CH444、CH445 ３ QFN16 33mm 0.50mm 19.7mil 16 CH444P QFN16 33mm 0.50mm 19
15	CH443K	ETC	SPDT low impedance analog switch chip 0.50mm 19.7mil 0.65mm 25mil 0.50mm 19.7mil 16 16 16 10 0.65mm 26mil 6 1.27mm 50mil 16 CH440G CH440P CH440R CH442E CH443K CH444G CH440、CH442、CH443、CH444、CH445 ３ QFN16 33mm 0.50mm 19.7mil 16 CH444P QFN16 33mm 0.50mm 19
16	CH442E	ETC	SPDT low impedance analog switch chip 0.50mm 19.7mil 0.65mm 25mil 0.50mm 19.7mil 16 16 16 10 0.65mm 26mil 6 1.27mm 50mil 16 CH440G CH440P CH440R CH442E CH443K CH444G CH440、CH442、CH443、CH444、CH445 ３ QFN16 33mm 0.50mm 19.7mil 16 CH444P QFN16 33mm 0.50mm 19
17	CH440	ETC	SPDT low impedance analog switch chip 0.50mm 19.7mil 0.65mm 25mil 0.50mm 19.7mil 16 16 16 10 0.65mm 26mil 6 1.27mm 50mil 16 CH440G CH440P CH440R CH442E CH443K CH444G CH440、CH442、CH443、CH444、CH445 ３ QFN16 33mm 0.50mm 19.7mil 16 CH444P QFN16 33mm 0.50mm 19
18	CH452	ETC	Digital tube driver and keyboard controller
19	CH438	ETC	Eight serial chip
20	CH450	ETC	LED drive and keyboard controller ● Set display current drive layer internal, the segment current is no less than 15mA, the word current is no less than 80mA. ● Dynamically display scan control, directly drive six bits numeric LEDs or forty eight LEDs. ● Set forty eight keys keyboard