STMPE1601 datasheet(34/61 Pages) STMICROELECTRONICS

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STMPE1601 数据表(PDF) 34 Page - STMicroelectronics

部件名	STMPE1601

功能描述	16-bit enhanced port expander with keypad and PWM controller Xpander Logic

PDF	61 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

34 / 61 page

GPIO controller

STMPE1601

34/61

10.4

Level translator feature

Figure 7.

Level translator feature

When enabled, the GPIO 0-7 bits are internally mapped to GPIO 8-15 bits. The

STMPE1601 becomes an 8-channel level translator where each of the channels may have

its direction set individually. As GPIO 0-7 operates from Vcc, and GPIO 8-15 operates from

Vio, this allows the 2 groups of GPIO to work as a level translator.

Warning:

When the level translator feature is enabled, the “Set pin”,

“Clear pin” and “Set direction” bits in the corresponding

registers will be ignored. However, the “Monitor pin”, “Edge

detect”, “Pull-up” features are still available in the GPIOs

used as level translator.

GPIO

0-7

GPIO

8-15

Direction

enable

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