速锐得OBD蓝牙BM77SPP05

Introduction
The ISSC BM77SPP05 Bluetooth module is design for Bluetooth standard SPP/ BLE electronic accessories via Bluetooth connectivity. 
It is available in the 2.4GHz ISM band Class 2 Radio, compatible with Bluetooth Core Specification Version 3.0/ 4.0 + EDR.
ISSC IS1677NM single chip solution combines transceiver and baseband function to decrease the external components. 
It narrows down the module size and minimizes its cost.
The optimized power design minimize power consumption to keep low battery.

● Feature
- Bluetooth 3.0/ 4.0+ EDR compliant
- Low power 1.8V RF operation
- RF transmitter output power Class 2
- RF receiver GFSK typical -90dBm, π/4 PSK typical -90dBm, 8DPSK typical -83dBm, BLE typical -92dBm
- Internal ROM and 4Mibts of flash
- I2C for external EEPROM
- 1 LED driver

Current Consumption
Class BR/ EDR
Operation Mode	Peak
Current	AVG
Current	Unit	Note
Peak current at TX mode	48.82		mA	
Peak current at RX mode	44.76		mA	
Deep power down mode		0.37	mA	
Connected + Sniff, Master (No data)		2.26	mA	No data was transmitted
Sniff (40 20 4 0)
Connected + Sniff, Master (No data)		0.84	mA	No data was transmitted
Sniff (500 20 4 0)

Connected + Sniff, Slave (No data)
		0.82	mA	No data was transmitted
Sniff (500 20 3 3) iPhone parameters
Data, Master Data		17.35	mA	transmitted at 115200bps
Data, Slave Data		20.04	mA	transmitted at 115200bps





Low Energy
Operation Mode
	AVG Current	Unit	Note
Standby mode (Discoverable & connectable mode	8.477	mA	fast adv interval = 20ms
	3.363	mA	adv interval = 160ms
Deep power down mode	0.371	mA	

Connected (No data)	
0.696	
mA	No data was transmitted connection interval = 500ms, (LE_Connection_Interval_Max =0x0190)
Connected (No data)	1.55	mA	No data was transmitted connection interval = 20ms,
(LE_Connection_Interval_Max = 0x0010)
Connected (transfer data)
	12.688	mA	connection interval = 500ms, (LE_Connection_Interval_Max = 0x0190)
Connected (transfer data)
	16.761	mA	connection interval = 500ms, (LE_Connection_Interval_Max = 0x0010)




























Pin Definition 


P/N	I/O	Name	Description
1	O	UART_TX	UART_TX
2	I	UART_RX	UART_RX
3	I	P17 	UART_CTS
4	O	P00	UART_RTS
5	P	LDO33	3V3 LDO Output
6	O	P04	UART_TX_IND
7	O	P15	Link_IND
P15/P04: HH  Power default value and Shutdown State
P15/P04: HL  Access State
P15/P04: LL  Link State w/o UART_TXD
P15/P04: LH  Link State with UART_TXD
8	I	P20	System configuration
9	I	P24	System configuration
10	I	EAN	ROM/Flash selection
11	I	RST	External reset input (Low Active)
12	P	BAT	4.2~3.2V Power input
13	P	GND	GND
14	P	GND	GND
15	I	P32	Link_Drop By Low Active (> 10Ms) 
Configuration IO
16	I	P33	RX_IND By Low Active (> 2Ms)
Configuration IO
17	I	P34	Pairing Key By Low Active (> 240Ms)
18	I/O	P31	Configuration IO
19	O	P37	Low Battery IND 
20	I	LED	LED1 driver
21	NC	NC	NC
22	NC	NC	NC
23	P	1V8	1V8 Power Supply
24	NC	NC	NC
25	P	GND	GND
26	R I/O	RF_Output	RF Port

部分IO时序说明

1，Link_Drop：


2， Pairing Key IO:





3， Low Battery IO Indication



● Contact：
ShenZhen Thread Tech Co.,Ltd

Tel: 0755-29734619
Mobile: 188 1367 5677


● Footprint：
Size: 27mm *13mm*2.2mm