BTM410/411
Bluetooth
®
AT Data Module Hardware Integration Guide
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www.lairdtech.com/bluetooth
9
CONN-HIG-BTM410-411
Table 2-5: Voltage specifications (VIO)
Min
Typ
Max
Input Voltage Levels
Vih
0.7VDD_IO
Vil 2.7<VDD_USB<3.0
1.7<VDD_USB<1.9
-0.4
-0.4
+0.8
-0.4
Output Voltage Levels (1.7 < VDD_IO < 1.9)
Voh (Iout = -4 mA)
VDD_USB – 0.4
Vol (Iout = 4 mA)
0.4
Output Voltage Levels (2.7 < VDD_IO < 3.0)
Voh (Iout = -4 mA)
VDD_USB – 0.2
Vol (Iout = 4 mA)
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
5 second average, no data at
UART
(2)
I_avg @ 38400 baud
2.75 mA
I_avg @ 115200 baud
2.95 mA
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
Active mode
I_avg_master_sniff_idle
13.6 mA
Sniff interval=50 ms
I_avg_master_ssr_idle
9.9 mA
SSR, interval=300 ms
Connected as slave, no data
exchange
I_avg_conn_slave_idle
29.0 mA
Active mode
I_avg_slave_sniff_idle
12.7 mA
Sniff interval=50 ms
I_avg_slave_ssr_idle
9.9 mA
SSR, interval=300 ms
1.
All current peaks measured were less than 86 mA.
2.
Even when no data transmits, higher baud rates cause a higher standby current.
3.
For additional information on Absolute Current Rating, see
Application Note – BTM41x Absolute Current Ratings located at
