STMPE1601 datasheet(38/61 Pages) STMICROELECTRONICS

Numer części	STMPE1601

Szczegółowy opis	16-bit enhanced port expander with keypad and PWM controller Xpander Logic

PDF	61 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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38 / 61 page

Basic PWM controller

STMPE1601

38/61

PWM_n_SET n=0-3

PWM_n_Setup n=0-3

Address:

0x50, 0x54, 0x58, 0x5C

Type:

Reset:

0x00

Description:

PWM blinking control and brightness setting.

765

432

Brightness

Timing

R/WR/W

R/W

000

[7:4] BRIGTHNESS:

Duty cycle of PWM output during period 0

0000: duty cycle ratio 1:15 ( 6.25%, minimum brightness)

0001: duty cycle ratio 2:14 (12.50%)

0010: duty cycle ratio 3:13 (18.75%)

0011: duty cycle ratio 4:12 (25.00%)

0100: duty cycle ratio 5:11 (31.25%)

0101: duty cycle ratio 6:10 (37.50%)

0110: duty cycle ratio 7: 9 (43.75%)

0111: duty cycle ratio 8: 8 (50.00%)

1000: duty cycle ratio 9: 7 (56.25%)

1001: duty cycle ratio 10: 6 (62.50%)

1010: duty cycle ratio 11: 5 (68.75%)

1011: duty cycle ratio 12: 4 (75.00%)

1100: duty cycle ratio 13: 3 (81.25%)

1101: duty cycle ratio 14: 2 (87.50%)

1110: duty cycle ratio 15: 1 (93.75%)

1111: duty cycle ratio 16: 0 (100.00%, maximum brightness)

STMPE1601 Arkusz danych(PDF) 38 Page - STMicroelectronics