BCM4354 Data Sheet
Signal Descriptions
Signal Descriptions
The signal name, type, and description of each pin in the BCM4354 is listed in Table 21 (WLCSP) and Table 22
on page 111 (WLBGA). The symbols shown under Type indicate pin directions (I/O = bidirectional, I = input, O
= output) and the internal pull-up/pull-down characteristics (PU = weak internal pull-up resistor and PD = weak
internal pull-down resistor), if any.
Table 21: WLCSP Signal Descriptions
Bump# Signal Name
Type Description
WLAN and Bluetooth Receive RF Signal Interface
290
261
WRF_RFIN_2G_CORE0
WRF_RFIN_2G_CORE1
I
I
2.4 GHz Bluetooth and WLAN CORE0 receiver
shared input
2.4 GHz Bluetooth and WLAN CORE1 receiver
shared input
302
260
298
279
280
299
294
WRF_RFIN_5G_CORE0
WRF_RFIN_5G_CORE1
WRF_RFOUT_2G_CORE0
WRF_RFOUT_2G_CORE1
WRF_RFOUT_5G_CORE0
WRF_RFOUT_5G_CORE1
WRF_TSSI_A_CORE0
I
5 GHz WLAN CORE0 receiver input
5 GHz WLAN CORE1 receiver input
2.4 GHz WLAN CORE0 PA output
2.4 GHz WLAN CORE1 PA output
5 GHz WLAN CORE0 PA output
5 GHz WLAN CORE1 PA output
I
O
O
O
O
I
5 GHz TSSI CORE0 input from an optional external
power amplifier/power detector.
276
297
258
WRF_TSSI_A_CORE1
I
5 GHz TSSI CORE1 input from an optional external
power amplifier/power detector.
WRF_GPIO_OUT_CORE0
WRF_GPIO_OUT_CORE1
I/O GPIO or 2.4 GHz TSSI CORE0 input from an optional
external power amplifier/power detector
I/O GPIO or 2.4 GHz TSSI CORE1 input from an optional
external power amplifier/power detector
Broadcom®
October 15, 2014 • 4354-DS109-R
Page 103
BROADCOM CONFIDENTIAL
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