11
D-EJ750/EJ751/EJ753/EJ755/EJ756CK/EJ758CK
Pin No. Pin name I/O Description
IC801 (SYSTEM CONTROL) T5AW5-NJR2-M1
1 GND – Ground terminal.
2 XIN I System clock input (4.19MHz).
3 XOUT O System clock output (4.19MHz).
4 TEST I Test mode terminal (Fixed to “L”).
5 VCPU – Power supply for CPU & I/O.
6 P21 – Not used (OPEN).
7 P22 I Not used (Fixed to “H”).
8 RESET I/O Reset terminal.
9 FOK.I I Wake up terminal.
10 NC – Not used (OPEN).
11 SCOR_I I SCOR pulse input.
12 GRSCOR_I I GRSCOR input.
13 AMTE_I O Along mute output.
14 XSOE_O O Serial enable output.
15 XLAT_O O Serial latch output.
16 MSDTI I Serial data input from DSP SENS.
17 MSDTO O Serial data output.
18 MSCK_O O Serial interface clock output.
19 VCPU – Power supply for CPU and I/O.
20 VREF_AD – Analog reference voltage for A/D converter.
21 AD_CHGMON1 I Charge monitor input.
22 AD_BATMNT I Battery moniter input.
23 AD_KEY2 I Key input.
24 AD_SEL I DRAM, LINE OUT DIGITAL OUT select input.
25 AD_KEY I Set’s key detection input.
26 AD_RMKEY I Remote contorol key detection input.
27 AD_DCINMNT I DC voltage monitoring input.
28 CLOSE I OPEN switch status detection input.
29 PPG – Not used (OPEN).
30 BEEP_O O Beep sound output.
31 TSB_I/O – Not used (OPEN).
32 VDD2 – Power supply terminal.
33 EXTBATT_I I External battery monitor.
34 TEXTSKIP_I I CD text fuction input. “H”: OFF
35 DIGI_TU_I O Not used (Fixd to “L”).
36 LODING_I I Not used (Fixd to “L”).
37 XSTAND_ON_I I Not used (Fixd to “H”).
38 ESP_I I G-PRPTECTION switch status detection input.
39 AVLS_I O Not used (Fixed at “L”).
40 HOLD_I I HOLD switch status detection input.
41 SEG15 O Not used (OPEN).
42 to 56 SEG0 to 14 O LCD segment output.
57 to 60 COM0 to 3 O LCD common output.
61 to 63 V1 to 3 – LCD driver booster.
64 C1 – LCD driver booster.
65 C0 – LCD driver booster.
66 XWAKEUP_O O Wale-up signal output.
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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