IS1871 datasheet(14/44 Pages) MICROCHIP

14 / 44 page

IS1870/71

DS60001371C-Page 14

 2015-2016 Microchip Technology Inc.

2.2

System Block Specification

The following are system block specifications:

2.2.1

• Bluetooth BT4.2 LE compliant SoC

• Frequency: 2.402 GHz to 2.480 GHz

• Programmable transmit output power up to +2

dBm maximum

• -25 dBm minimum Tx power to search nearby

devices

• -90 dBm typical receiver power sensitivity

• Digital RSSI indicator (-50 dBm~-90 dBm)

• -20°C to +70°C BLE RF certified

2.2.2

PMU

• Operating battery input voltage range: 1.9V~3.6V

• 1.28V RFLDO: RF IP power supply

• 1.55V PALDO: RF Tx power amplify supply

• 1.2V CLDO: Core-logic and memories supply

• 1.55V DC-DC switching buck converter

• 1.2V programmable ULPC to supply AON-logic

and retention memory

• AON-logic to control power-up, power-down and

wake up procedures

• Internal 32 KHz (±250 ppm) ultra low-power oscil-

lator

• Power-on Reset

2.2.3

MCU

• 8051 Core with scalable clock

•ROM: 32 KB

• Main SRAM: 24 KB

• Embedded Flash: 256 KB for Device Firmware

Upgrade (DFU) and run-time data storage

2.2.4

PERIPHERALS

• Flexible GPIO pin configuration

• ADC:

- 0V~3.6V, 12-bit SDM-ADC with 16-channel

(IS1870) or 6-Channel (IS1871) hybrid-I/O

(Multi-Function). It can be configured as ADC

or GPIO input

• Internal 1.9V~3.6V battery voltage monitor

• Precision Temperature Sensor (PTS)

(-20°C ~+70°C, ±3°C accuracy)

• 4 MHz clock-rate full duplex 4-wire master/slave

SPI with 256 bytes buffer DMA

• HCI over UART up to 921600 bps with flow-con-

trol

• 2-wire serial interface (compatible to I2C)

• General-purpose I/O pins with input internal pull-

up /Hi-Z selectable

• 24-bit low-power Real Time Counter (RTC) for

background timer in standby mode

• Watchdog timer

• Event Counter option (P1_4,P1_5) provides cap-

ture/counter function to external events for fre-

quency calculation. Provides 1K/32K/1M/16M

clock rate option to count the frequency range

from 60 Hz to 1 MHz. Continuous/One shot count

mode can be selected

• Specific GPIO pins (P1_6, P1_7) support external

32.768 KHz crystal option for RTC

•PWM:

- 16-bit PWM design

- 4 Individual frequency and individual duty

cycle channel outputs multiplexed with GPIO

pin (P2_1, P2_2, P2_3, P2_5)

- Three clock source (32K, 1M, 16M) selection

to program frequency range from 0.488 Hz to

8 MHz

- Double buffers output compare registers and

top register to avoid glitch

- Two pair output configurable as inverse chan-

nel

IS1870SF_IS1871SF.book Page 14 Thursday, March 31, 2016 10:29 AM

IS1871 数据表(PDF) 14 Page - Microchip Technology

IS1871 数据表(HTML) 14 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

数据表下载