IS1677SM Просмотр технического описания (PDF) - Unspecified
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IS1677SM Datasheet PDF : 28 Pages
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RN4677
TABLE 1-2: PIN DESCRIPTION
RN4677 RN4677U
Pin
Pin
Name
Type
1
— GND
Power
2
— GND
Power
3
1
GND
Power
4
2
BAT_IN
Power
5
3
SW_BTN DI
6
4
LDO33_O Power
7
5
VDD_IO
Power
8
6
LDO18_O Power
9
7
WAKEUP DI
10
8
PMULDO_O Power
11
9
P04
DO
12
10 P15
DO
13
11 P12/SCL DO
14
12 P13/SDA DIO
15
13 P17/CTS DIO
16
14 P05
DIO
17
15 P00/RTS DIO
18
16 P20
DI
19
17 P24
DI
20
18 EAN
DI
21
19 RST_N
DI
22
20 RXD
DI
23
21 TXD
DO
24
22 P31
DIO
25
23 P32
DIO
26
24 P33
DIO
27
25 P34
DIO
28
26 P36
DIO
29
27 P37
DIO
30
28 LED1
DO
Description
Ground reference
Ground reference
Ground reference
Battery input. Main positive supply input. Connect to 10 µF low
ESR ceramic capacitor.
Software Button - H: Power On; L: Power Off. See Section 1.6
“Software Button (SW_BTN)”.
Internal 3.3V LDO regulator output. Connect to 10 µF low ESR
ceramic capacitor.
I/O positive supply input. Ensure VDD_IO and MCU I/O voltages
are compatible.
Internal 1.8V LDO regulator output. Connect to 10 µF low ESR
ceramic capacitor.
Wakeup from shutdown mode (active-low; internal pull up)
Power management unit output. Connect to 1 µF low ESR
ceramic capacitor.
Status Indicator 2 (STATUS_IND_2). See Section 1.5 “Status
Indication I/O Pins”.
Status Indicator 1 (STATUS_IND_1). See Section 1.5 “Status
Indication I/O Pins”.
I2C SCL (Do not connect)
I2C SDA (Do not connect)
Configurable control or indication pin or UART CTS (input)
Configurable control or indication pin
Configurable control or indication pin or UART RTS (output)
System configuration (internal pull up). See Section 1.10
“System Configuration”.
System configuration (internal pull up). See Section 1.10
“System Configuration”.
System configuration (internal pull down). See Section 1.10
“System Configuration”.
Module Reset (active-low; internal pull up). Apply a pulse of at
least 63 ns.
UART data input
UART data output
Configurable control or indication pin. If configured as input;
internal pull up.
Configurable control or indication pin. If configured as input;
internal pull up.
Configurable control or indication pin If configured as input;
internal pull up.
Configurable control or indication pin If configured as input;
internal pull up.
Do not connect
Configurable control or indication pin (when configured as input:
internal pull up)
Status LED. See Section 1.9 “Status LED (LED1)”.
2015 Microchip Technology Inc.
Advance Information
DS50002370A-page 5
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