BTM402-03 Laird Technologies, BTM402-03 Datasheet - Page 5

• Manufacturer Part Number: BTM402-03
• Description: MODULE, BLUETOOTH, BISM2 PA, 3.6V
• Manufacturer: Laird Technologies

Specifications of BTM402-03

• Compliance Standard: CE, FCC, IC, R, TTE
• Supply Voltage Range: 3.3V To 5V
• Physical Interfaces: UART
• Data Rate: 300Kbps
• Transmit Power: 65mW
• Receiving Signal Range: -87dBm
• Operating Temperature: RoHS Compliant
• Operating Temperature Range: -10°C To +85°C
• Rohs Compliant: Yes

3.2
The Hirose DF12C board-to-board connector on the module is a 40-pin double-row receptacle.
The table below defines the pin functions. Note that this pin-out is as viewed from the underside of
the Module.
Notes:
* The reset circuitry within the BISM Serial Modules now incorporates a brown-out detector within
the module. Customers migrating from previous modules should check their implementation, as they
may be able to simplify their external power supply design. The reset line has a fixed 10kOhm pull
down resistor to ground.
** Pins 33, 35 and 37 were N/C on BISM1. Pin 39 was a 1V8 monitor. Designers migrating between
designs should be aware that these are now available as I/O. Default configuration is as an input.
*** Pins 2 and 4 were used as GPIO in previous versions of the BISM and WISM. These signals are
used internally for PA control. These pins MUST NOT BE CONNECTED.
PIO lines can be configured through software to be either inputs or outputs with weak or strong pull-
ups or pull-downs. At reset, all PIO lines are configured as inputs with weak pull-downs.
UART_RX, UART_TX, UART_CTS, UART_RTS, UART_RI, UART_DCD and UART_DSR are all 3.0v level
logic. For example, when RX and TX are idle they will be sitting at 3.0V. Conversely for handshaking
pins CTS, RTS, RI, DCD, DSR a 0v is treated as an assertion.
DSH_BTM404_0v5 BISM2 3V3 PA Data Sheet.DOC
Pin
No.
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
Signal
Analogue 0
Analogue 1
SPI_MISO
SPI_CSB
SPI_CLK
GND
RESET
GND
SPI_MOSI
UART_CTS
UART_TX
UART_RTS
UART_RX
VCC_3V0
VCC_5V
N/C
GPIO6 **
GPIO7 **
GPIO8 **
GPIO9
Pin Descriptions
Description
1.8v Max
1.8v Max
SPI bus serial O/P
SPI bus chip select I/P
SPI bus clock I/P
Reset I/P *
SPI bus serial I/P
Clear to Send I/P
Transmit Data O/P
Request to Send O/P
Receive Data I/P
3.0V Monitor
3.3V < VIN < 5.0V
I/O for Host
I/O for Host
I/O for Host
I/O for Host
36
38
Pin
No.
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
40
Signal
N/C
N/C
UART_RI
UART_DCD
UART_DSR
GPIO3/UART_DTR
GPIO4
GPIO5
GND
PCM_CLK
PCM_IN
PCM_SYNC
PCM_OUT
N/C
GND
USB / RESERVED
USB / RESERVED
GND
GND
N/C
5
Description
Input
I/O for Host
Do not connect ***
Do not connect ***
‘Ring’ Input or Output
Input or Output
I/O for Host
I/O for Host
PCM Clock I/P
PCM Data I/P
PCM Sync I/P
PCM Data O/P
Do not connect
Do not connect
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