Preliminary Datasheet BM77SPPx3MC2 (Microchip) - 4

BM77SPPx3MC2
Pin
1
2
3
4 Pin
-1
2 GND
GND
GND
BAT_IN Power
Power
Power
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
12
13
14
15
16
17 9
10
11
12
13
14
15 P04
P15
P12/SCL
P13/SDA
P17/CTS
P05
P00/RTS DO
DO
DO
DIO
DIO
DIO
DIO 18 16 P20 DI 19 17 P24 DI 20 18 EAN DI 21 19 RST_N DI 22
23
24 20
21
22 RXD
TXD
P31 DI
DO
DIO 25 23 P32 DIO 26 24 P33 DIO 27 25 P34 DIO 28
29 26
27 P36
P37 DIO
DIO 30
31
-32
33 28
29
30
-LED1
GND
BT_RF
GND
GND DO
Power
AIO
Power
Power Ground reference
Ground reference
Ground reference
Battery Input. Main positive supply input. Connect to 10
uF low ESR ceramic capacitor.
Software Button H: Power On / L: Power Off
(See Section 1.6)
Internal 3.3V LDO regulator output. Connect to 10 uF 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 uF low
ESR ceramic capacitor.
Wakeup from shutdown mode (active low)
(internal pull-up)
Power management unit output. Connect to 1 uF low ESR
ceramic capacitor.
Status Indicator 2 (STATUS_IND_2). See Section 1.5
Status Indicator 1 (STATUS_IND_1). See Section 1.5
2
I C SCL (Do Not Connect)
2
I C 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 (internal pull-up)
(See Section 1.10)
System configuration (internal pull-down)
(See Section 1.10)
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
(when configured as input: internal pull-up)
Configurable Control or Indication pin
(when configured as input: internal pull-up)
Configurable Control or Indication pin
(when configured as input: internal pull-up)
Configurable Control or Indication pin
(when 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)
Ground reference
External antenna connection (50 ohm)
Ground reference
Ground reference Note 1: Pin type abbreviation: A = Analog, D = Digital, I = Input, O = Output. 1.2 Configuring the BM77 © 2014 ISSC Technologies Corp. Preliminary Revision 2.1.1 – June 16, 2015 Page 4