BTM410 Datasheet, PDF (9/25 Pages) Laird Tech Smart Technology – modules from Laird are designed to meet the needs of developers who wish to add robust

BTM410/411
Bluetooth^® AT Data Module Datasheet
Table 2-5: Voltage specifications (VIO)
Input Voltage Levels
Vih
Vil 2.7<VDD_USB<3.0
1.7<VDD_USB<1.9
Output Voltage Levels (1.7 < VDD_IO < 1.9)
Voh (Iout = -4 mA)
Vol (Iout = 4 mA)
Output Voltage Levels (2.7 < VDD_IO < 3.0)
Voh (Iout = -4 mA)
Vol (Iout = 4 mA)
Min
Typ
0.7VDD_IO
-0.4
-0.4
VDD_USB – 0.4
VDD_USB – 0.2
Max
+0.8
-0.4
0.4
0.2
Table 2-6: Absolute Current Rating Summary
Power up / reset
I_avg_reset
20.7 mA
t_reset_current_dur.
3.0 s
Idle⁽²⁾
I_avg @ 9600 baud
2.60 mA
I_avg @ 38400 baud
I_avg @ 115200 baud
2.75 mA
2.95 mA
5 second average, no data
at UART⁽²⁾
I_avg @ 460800 baud
4.37 mA
Connectable and
Discoverable
I_avg_cycle
23.1 mA
AT+BTP / ATS512=4, 9600
Baud, average over 1
interval
Inquiry
I_avg_inquiry
42.1 mA
Initiate pairing
I_avg_pair_ini
28.8 mA
Accept pairing
I_avg_pair_acc
42.0 mA
Initiate a connection
(SPP)
I_avg_connect_ini
39.8 mA
Accept a connection
(SPP)
I_avg_connect_ini
37.2 mA
Connected as master,
no data exchange
I_avg_conn_master_idle 13.3 mA
I_avg_master_sniff_idle 13.6 mA
Active mode
Sniff interval=50 ms
I_avg_master_ssr_idle
9.9 mA
SSR, interval=300 ms
Connected as slave, no I_avg_conn_slave_idle
data exchange
I_avg_slave_sniff_idle
29.0 mA
12.7 mA
Active mode
Sniff interval=50 ms
I_avg_slave_ssr_idle
9.9 mA
SSR, interval=300 ms
All current peaks measured were less than 86 mA.
Even when no data transmits, higher baud rates cause a higher standby current.
For additional information on Absolute Current Rating, see Application Note – BTM41x Absolute Current Ratings
located at www.lairdtech.com/wireless.
Embedded Wireless Solutions
9
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www.lairdtech.com/bluetooth
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