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STMPE1601 Fiches technique(PDF) 47 Page - STMicroelectronics

No de pièce STMPE1601
Description  16-bit enhanced port expander with keypad and PWM controller Xpander Logic
PDF  61 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMPE1601 Fiches technique(HTML) 47 Page - STMicroelectronics

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STMPE1601
Keypad controller
47/61
KPC_ROW_MSB
Keypad row MSB
Address:
0x61
Type:
R/W, R
Reset:
Description:
Keypad row scanning register
7
6
5
432
10
SCAN_PW1
SCAN_PW0
HIB_WK
-
RESERVED
R/W
R/W
R/W
R
R
R
R
R
1
1
0
000
00
[7:6] SCAN_PW[1:0]:
Row output scanning pulse width setting:
00: 1x period of internal clock
01: 16x period of internal clock
10: 64x period of internal clock
11: 128x period of internal clock (default)
(This setting is only applicable during normal operation mode. The scanning pulse width is 1x
period of 32 kHz clock during sleep mode.)
[5] HIB_WK:
1: to enable the keypad wake-up from hibernate mode
0: to disable
[4:0] RESERVED



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