
Pin Connections
MC13192/MC13193 Technical Data, Rev. 2.7
Freescale Semiconductor
15
19
CE
Digital Input
Active Low Chip Enable. Enables SPI
transfers.
20
IRQ
Digital Output
Active Low Interrupt Request.
Open drain device.
Programmable 40 k
Ω
internal
pull-up.
Interrupt can be serviced every
6 µs with <20 pF load.
Optional external pull-up must
be >4 k
Ω
.
21
VDDD
Power Output
Digital regulated supply bypass.
Decouple to ground.
22
VDDINT
Power Input
Digital interface supply & digital regulator
input. Connect to Battery.
2.0 to 3.4 V. Decouple to
ground.
23
GPIO5
Digital Input/Output
General Purpose Input/Output 5.
24
GPIO6
Digital Input/Output
General Purpose Input/Output 6.
25
GPIO7
Digital Input/Output
General Purpose Input/Output 7.
26
XTAL1
Input
Crystal Reference oscillator input.
Connect to 16 MHz crystal and
load capacitor.
27
XTAL2
Input/Output
Crystal Reference oscillator output
Note:
Do not load this pin by using it as
a 16 MHz source. Measure 16 MHz
output at Pin 15, CLKO, programmed for
16 MHz. See the
MC13192/MC13193
Reference Manual
for details.
Connect to 16 MHz crystal and
load capacitor.
28
VDDLO2
Power Input
LO2 VDD supply. Connect to VDDA
externally.
29
VDDLO1
Power Input
LO1 VDD supply. Connect to VDDA
externally.
30
VDDVCO
Power Output
VCO regulated supply bypass.
Decouple to ground.
31
VBATT
Power Input
Analog voltage regulators Input. Connect
to Battery.
Decouple to ground.
32
VDDA
Power Output
Analog regulated supply Output.
Connect to directly VDDLO1 and
VDDLO2 externally and to PAO± through
a frequency trap.
Decouple to ground.
EP
Ground
External paddle / flag ground.
Connect to ground.
Table 8. Pin Function Description (continued)
Pin #
Pin Name
Type
Description
Functionality