User's Manual
Table Of Contents
- 1 Overview and Key Features
- 2 Specification
- 2.1 Specification Summary
- 3 Hardware Specifications
- 3.3.4 OTA (Over-the-Air) smartBASIC Application Download
- 4 Power Consumption
- 5 Functional Description
- 5.1 Power Management (includes Brown-out and Power on Reset)
- 5.2 Clocks and Timers
- 5.3 Memory for smartBASIC Application Code
- 5.4 Radio Frequency (RF)
- 5.5 NFC
- 5.6 UART Interface
- 5.7 SPI Bus
- 5.8 I2C Interface
- 5.9 General Purpose I/O, ADC, PWM and FREQ
- 5.10 nRESET pin
- 5.11 nAutoRUN pin
- 5.12 vSP Command Mode
- 5.13 Two-wire Interface JTAG
- 5.14 BL652 Wakeup
- 5.15 Low Power Modes
- 5.16 Temperature Sensor
- 5.17 Random Number Generator
- 5.18 AES Encryption/Decryption
- 5.19 Optional External Serial (SPI) Flash
- 5.20 Optional External 32.768 kHz crystal
- 5.21 BL652-SA On-board Chip Antenna Characteristics
- 6 Hardware Integration Suggestions
- 7 Mechanical Details
- 8 Application Note for Surface Mount Modules
- 9 FCC and IC Regulatory Statements
- 10 Japan (MIC) Regulatory
- 11 CE Regulatory
- 12 EU Declarations of Conformity
- 13 Ordering Information
- 14 Bluetooth SIG Qualification
BL652
Datasheet
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Pin 28 (nAutoRUN) is an input, with active low logic. In the development kit (DVK-BL652-xx) it is connected so
that the state is driven by the host’s DTR output line. The nAutoRUN pin must be externally held high or low to
select between the following two BL652 operating modes:
Self-contained Run mode (nAutoRUN pin held at 0V –this is the default (internal pull-down enabled))
Interactive/Development mode (nAutoRUN pin held at VCC)
The smartBASIC runtime engine firmware checks for the status of nAutoRUN during power-up or reset. If it is low
and if there is a smartBASIC application script named $autorun$, then the smartBASIC runtime engine firmware
executes the application script automatically; hence the name Self-contained Run Mode.
Electrical Specifications
3.3.1 Absolute Maximum Ratings
Absolute maximum ratings for supply voltage and voltages on digital and analogue pins of the module are listed
below; exceeding these values causes permanent damage.
Table 3: Maximum current ratings
Parameter
Min
Max
Unit
Voltage at VDD_nRF pin
-0.3
+3.9 (Note 1)
V
Voltage at GND pin
0
V
Voltage at SIO pin (at VDD_nRF≤3.6V)
-0.3
VDD_nRF +0.3
V
Voltage at SIO pin (at VDD_nRF≥3.6V)
-0.3
3.9
V
NFC antenna pin current (NFC1/2)
-
80
mA
Radio RF input level
-
10
dBm
Environmental
Storage temperature
-40
+85
ºC
MSL (Moisture Sensitivity Level)
-
3
-
ESD (as per EN301-489)
Conductive
Air Coupling
4
8
KV
KV
Flash Memory (Endurance) (Note 2)
-
10000
Write/erase cycles
Flash Memory (Retention)
-
10 years at 40°C
-
Maximum Ratings Notes:
Note 1
The absolute maximum rating for VCC pin (max) is 3.9V for the BL652-Sx-xx.
Note 2
Wear levelling is used in file system.
3.3.2 Recommended Operating Parameters
Table 4: Power supply operating parameters
Parameter
Min
Typ
Max
Unit
VDD_nRF (independent of DCDC)
1
1.8
3.3
3.6
V