JENCO ELECTRONICS JENBTM BLE4.0 module User Manual
JENCO ELECTRONICS, LTD. BLE4.0 module
User Manual
HY-254101R Use TTC2541 /TI CC2541 IC chip24 pin BLE 4.0
Bluetooth module specifications. ( FCC ID: 2AJSFJENBTM)
(1). Dimensions Size :
(2). block diagram :
(3)、Working mode schematic
PCBA SIZE：
15.2 * 25.3 *
2.0 mm
FCC ID word :
High: 0.95mm ,
Total Length :
13mm.
(4): IC Block Diagram
(5). Electrical characteristics
(With Ta = 25 ℃, VDD = 3.3V, standard measure:1Mbps , 250KHz GFSK
modulation , Bluetooth Low energy mode.)
1. Modulation Mode: GFSK;
2. Frequency range: 2402~2480MHZ (2.4G ISM band);
3. Transmit power setting: -20 ~ 0 dBm (programmable via software);
4. Operating ambient temperature range: -40 ℃ ~ + 85 ℃;
5. The storage temperature range: -40 ℃ ~ + 125;
6. The power supply voltage: 2.0 ~ 3.6VDC;
7. Receiver sensitivity: - 94dBm typical( direct test from IC RF out );
8. Receiving mode current (high gain setting): 20.02 mA (typical);
9. Transmit mode current ( at 0dBm output setting ): 18.2 mA (typical);
10. MCU law active current (only 32MHz operation of X-tal OSC):
6.7 mA (typ);
11. Power mode 1: The current consumption: (under MCU standby mode,
the wake-up time = 4uS); I= 270uA (Typical);
12. Power mode 2: THE current consumption in sleep mode.
timer activate / enable, wake-up time can by the programming
software setting): I = 1uA (typ);
13. Power mode 3: The current consumption :( Low power deep sleep mode,
via the hardware initiative wake ): I = 0.5uA(Typical);
(6).Module pin definition and description of input and output ports
（6-1）HY-254101R（ PCB Antenna）pin map
（6-2）Pin function table (Not shown in the I/O pin functions ,Please see
(6-3) input and output ports description)
PinNo.
Function
Function Description
1
IO2_2 / DC
Digital I/O port 2_2 / Debug clock
2
IO2_1 / DD
Digital I/O port 2_1 / Debug data
3
IO2_0
Digital I/O port 2_0
4
IO1_7 / SEL1
Digital I/O port 1_7
MCU communication mode select, See table(5-3)
Communication protcol mode selection, I/O setting Table
5
IO1_6 / SEL0
Digital I/O port 1_6
MCU communication mode select, See table(5-3)
Communication protcol mode selection, I/O setting Table
6
IO3_1 /
I2C SCL
Digital I/O port 3_1
IIC serial Clock (SCL)
can be used as I2C clock pin or digital I/O. Leave
floating if not used. If grounded disable pull up
7
IO1_5
Digital I/O port 1_5
8
IO1_4 / PWM4
Digital I/O port 1_4 / PWM port 4
9
IO1_3 / PWM3
Digital I/O port 1_3 / PWM port 3
10
IO1_2 / PWM2
Digital I/O port 1_2 / PWM port 2
11
IO3_0 / I2C
SDA
Digital I/O port 3_0
I2C serial Data (SDA)
Can be used as I2C data pin or digital I/O. Leave floating
if not used. If grounded disable pull up
12
GND
BLE module grounding pin
13
VCC
BLE module power supply pin,
voltage range of 2.0 ~ 3.6V
14
IO1_1 / PWM1
Digital I/O port 1_1 20mA drive capability
/ PWM port 1
15
IO1_0 / PWM0
Digital I/O port 1_0 20mA drive capability
/ PWM port 0
16
IO0_7
Digital I/O port 0_7
ADC7
ADC port 7
PWM5
PWM port 5
17
IO0_6
Digital I/O port 0_6
INT
Interrupt output pin
ADC 6
ADC port 6
18
IO0_5
Digital I/O port 0_5
SPI SCK
SPI Bus clock signal
ADC 5
ADC port
19
IO0_4
Digital I/O port 0_4
WAKEUP
BLE wake up pin, Low/ wake up, High / BLE module
automatically sleep
ADC4
ADC port 4
20
IO0_3
Digital I/O port 0_3
UART TX
UART Serial data bus output
SPI MOSI
SPI Master Out , Slave input
ADC3
ADC port 3
21
IO0_2
Digital I/O port 0_2
UART RX
UART Serial data bus input
SPI MISO
SPI Master input , Slave output
ADC2
ADC port 2
22
IO0_1 / ADC1
Digital I/O port 0_1 / ADC PORT 1
23
IO0_0 / ADC0
Digital I/O port 0_0 / ADC PORT 0
24
Reset
BLE hardware reset pin (Low: reset)
Pin Function Description (The module following collectively "BLE"):
a.UART: serial bus, the default baud rate 9600bps, a single packet transmission
is less than 17 bytes, package transmission intervals greater than 20ms.
b.SPI: SPI bus interface, support for less than 2M / S data transmission rate,
a single packet transmission is less than 17 bytes, package
transmission intervals greater than 20ms.
c.IIC: IIC bus interface, support more than 22K / S, less than 400K / S data
transmission rate, a single packet transmission is less than 8 bytes,
package transmission intervals greater than 20ms.
d.RX: serial bus data input.
e.MOSI: Master output, Slave input.
f.MISO: Master input, Slave output.
g.SCK: SPI bus clock signal.
h.SDA: IIC data.
i.SCL: IIC clock.
j.WAKEUP: BLE wake up pin, Low _wake up, High/ BLE module automatically sleep.
k.SEL0 ~ SEL1: MCU and BLE communication mode selection pin. Specific details,
see "(5-3) communication protocol mode selection, I/O setting table ".
l.REST: BLE hardware reset pin, Low_reset.
m.VCC: BLE module power supply pin voltage range DC 2.0~3.6V.
n.GND: BLE module ground pin.
（6-3）.Communication protocol mode selection, I/O setting Table
No.
Channel Select
PIN status
Communication
interface state
Remark
SEL1
SEL0
UART
SPI
IIC
1.Command mode
Please contact the
Vendor.
2.Description:
0 is Low,1 is high
1
0
0
OK
X
X
2
0
1
0K
X
X
3
1
0
X
OK
X
4
1
1
X
X
OK
5
X
X
OK
X
X
UART mode：SEL1=0,SEL0=0 or SEL1=0, SEL0=1 or SEL0,SEL1 floating.
SPI mode： SEL1=1,SEL0=0
IIC mode： SEL1=1,SEL0=1
（6-4）: Input and output ports Description
Input / utput Register pin No.
I/O Port
register
7
6
5
4
3
2
1
0
IO0
16
17
18
19
20
21
22
23
IO1
4
5
7
8
9
10
14
15
IO2
NC
NC
NC
NC
NC
1
2
3
IO3
NC
NC
NC
NC
NC
NC
6
11
Note：BITx=0，Low level out ; BITx=1 Highlevel out
Direction Register pin No.
Direction
Register
7
6
5
4
3
2
1
0
DIR0
16
17
18
19
20
21
22
23
DIR1
4
5
7
8
9
10
14
15
DIR2
NC
NC
NC
NC
NC
1
2
3
DIR3
NC
NC
NC
NC
NC
NC
6
11
Note: BITx = 0 is corresponds port input , BITx = 1 is corresponds port output .
PWM port pin No.
PWM5
PWM4
PWM3
PWM2
PWM1
PWM0
16
8
9
10
14
15
ADC port pin No.
ADC7
ADC6
ADC5
ADC4
ADC3
ADC2
ADC1
ADC0
16
17
18
19
20
21
22
23
Note: The Blue Numbers of the corresponding port pin No. applications of all
kinds, For example:IO0/bit0 or ADC0 pin is corresponding module pin No.23
(7).Antenna size and data
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1) this device may not
cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Please notice that if the FCC identification number is not visible when the
module is installed inside another device, then the outside of the device into
which the module is installed must also display a label referring to the enclosed
module. This exterior label can use wording such as the following: “Contains
FCC ID: 2AJSFJENBTM” any similar wording that expresses the same meaning may
be used.
Note: The OEM integrator is responsible for ensuring that the host product which
is installed and operating with the module is in compliant with Part 15B
unintentional Radiator requirements, please note that For a Class B digital
device or peripheral, the instructions furnished the user manual of the
end‐user product shall include the following or similar statement, placed in
a prominent location in the text of the host product manual:
Note：This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that
interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference
by one or more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
-- Consult the dealer or an experienced radio/TV technician for
help.
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment.The module is installation in portable application;
A separate approval is required for transmit with other antenna.