EM357-RTR datasheet(222/241 Pages) SILABS

tên linh kiện	EM357-RTR

Giải thích chi tiết về linh kiện	High-Performance, Integrated ZigBee/802.15.4 System-on-Chip

PDF	241 Pages

Scroll/Zoom	100%

nhà sản xuất	SILABS [Silicon Laboratories]

Trang chủ	http://www.silabs.com

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222 / 241 page

222

Rev 1.3

PB6

I/O

High

current

Digital I/O

ADC1

Analog

ADC Input 1

Enable analog function with GPIO_PBCFGH[11:8]

IRQB

External interrupt source B

TIM1C1

Timer 1 channel 1 output

Enable timer output in TIM1_CCER

Select alternate output function with GPIO_PBCFGH[11:8]

TIM1C1

Timer 1 channel 1 input

Cannot be remapped

PB5

I/O

Digital I/O

ADC0

Analog

ADC Input 0

Enable analog function with GPIO_PBCFGH[7:4]

TIM2CLK

Timer 2 external clock input

TIM1MSK

Timer 1 external clock mask input

VDD_CORE

Power

1.25 V digital core supply decoupling

VDD_PRE

Power

1.8 V prescaler supply

VDD_SYNTH

Power

1.8 V synthesizer supply

OSCB

I/O

24 MHz crystal oscillator or left open when using external clock input on

OSCA

I/O

24 MHz crystal oscillator or external clock input.

(An external clock input should only be used for test and debug purposes.

If used in this manner, the external clock input should be a 1.8 V, 50% duty

cycle, square wave.)

GND

Ground

Ground supply pad in the bottom center of the package forms Pin 49. See

the various Ember EM35x Reference Design documentation for PCB con-

siderations.

Table 19.1. EM35x Pin Descriptions (Continued)

Pin #

Signal

Direction

Description

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