CC2544_15 Datasheet, PDF (13/29 Pages) Texas Instruments – System-on-Chip for 2.4-GHz USB Applications

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PIN DESCRIPTIONS
DEVICE INFORMATION
CC2544
RHB Package
(Top View)
CC2544
SWRS103D – JUNE 2011 – REVISED MAY 2012
USB_P
USB_N
VDD
DCPL2
VBUS
P1_0
P1_1
VDD
32 31 30 29 28 27 26 25
1
24
2
23
3
22
4
VSS
21
5
Thermal Pad
20
6
19
7
18
8
17
9 10 11 12 13 14 15 16
VDD
VDD
VDD
RF_N
RF_P
VDD
XOSC2
XOSC1
P0048-19
NOTE: The exposed ground pad must be connected to a solid ground plane; this is the main ground connection for the chip.
NAME
DCPL1
DCPL2
P0_0
P0_1
P0_2
P0_3
P1_0
P1_1
P1_2
P1_3
RBIAS
RESET_N
RF_N
RF_P
USB_P
USB_N
VBUS
VDD
VDD
VDD
Table 1. Pin Description Table
PIN
DESCRIPTION
31
1.8-V reg. decouple
4
3.3-V reg. decouple
9
GPIO
10
GPIO
13
GPIO
14
GPIO
6
GPIO/20 mA
7
GPIO/20 mA
28
GPIO/debug clock
29
GPIO/debug data
25
External precision bias resistor for reference current
15
Reset, active-low
21
Negative RF input signal to LNA during RX
Negative RF output signal from PA during TX
20
Positive RF input signal to LNA during RX
Positive RF output signal from PA during TX
1
USB module
2
USB module
5
5-V power
3
AVDD
8, 12
IOVDD
16, 19, 22, 23, 24 AVDD
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