Data Sheet

Copyright (C) 2016 Reserved by Kirchhoff Technology Co., Ltd
KB64A/B/C(E)
Bluetooth Module
8
5. Pin Description
Pin
Pin Name
I/O
Type
Description
1
GND
P
Ground connections
2
PIO17
I/O PD Strong
D
Programmable input/output line 17/ UART_CTS (active low)
3
PIO21
I/O PD Weak
D
Programmable input/output line 21
4
PIO00
I/O PU Strong
D
Programmable input/output line 0/ UART_RX / I2C_SCL
5
PIO16
I/O PU Strong
D
Programmable input/output line 16/ UART_RTC
6
CS#
I/O PD Weak
D
SPI_CS#: chip select for SPI, active low (for download)
7
MISO
I/O PD Weak
D
SPI_MISO: SPI data output (for download)
8
SPI_PCM
I PD Weak
D
SPI/PCM select input: 0 = PCM/PIO interface 1= SPI
9
MOSI
I/O PD Weak
D
SPI_MOSI: SPI data input (for download)
10
CLK
I/O PD Weak
D
SPI_CLK: SPI clock ( for download)
11
RESET
I PU Strong
D
Reset if low. Pull low for minimum 5ms to cause a reset
12
LED1
I/O
D
LED driver
13
LED0
I/O
D
LED driver
14
MFB
I PD Weak
D
Regulator enable input
15
1.8V
P
P
+1.8V Output
16
VCHG
Charger input
P
Charger input
17
VBAT
Battery +
P
Battery positive terminal
18
GND
Ground
P
Ground connections
19
GND
Ground
P
Ground connections
20
GND
Ground
P
Ground connections
21
USB_DN
USB_DN
D
USB data minus
22
USB_DP
USB_DP
D
USB data plus with selectable internal 1.5kohm pull-up
resistor
23
PIO07
I/O PD Weak
D
Programmable I/O line 7
24
PIO09
I/O PD Weak
D
Programmable I/O line 9/ UART_CTS (active low)
25
PIO01
I/O PD Strong
D
Programmable I/O line 1
26
PIO08
I/O PU Strong
D
Programmable I/O line 8/ UART_RTS (active low)
27
PIO06
I/O PD Strong
D
Programmable I/O line 6
28
PIO18
I/O PD Weak
D
Programmable I/O line 18
29
MIC_A_N
I
A
Line or microphone input negative, channel A
30
MIC_A_P
I
A
Line or microphone input positive, channel A
31
MIC_BIAS
I
A
Microphone bias
32
 
I
A
Line input negative, channel B
33
LINE_BP
I
A
Line input positive, channel B
34
SPKR_RN
O
A
Speaker output negative, right, KB64A NC for mono
35
SPKR_RP
O
A
Speaker output positive, right, KB64A NC for mono
36
SPKR_LN
O
A
Speaker output negative, left
37
SPKR_LP
O
A
Speaker output positive, left
38
GND
Ground
G
Ground connections
39
BT_RF
A
A
External antenna pin (*only available for KB64xE)
Table 5-1 Pin description
FOR"CERTIFICATION"ONLY