PRELIMINARY
CYW54907
■ Security support:
❐ WPA and WPA2 (Personal) support for powerful encryption
and authentication.
■ World wide regulatory support: Global products supported
with worldwide design approval.
❐ AES and TKIP in hardware for faster data encryption and
IEEE 802.11i compatibility.
General Features
❐ Reference WLAN subsystem provides Cisco Compatible Ex-
■ Supports battery voltage range from 3.0V to 4.8V with an
internal switching regulator.
tensions (CCX, CCX 2.0, CCX 3.0, CCX 4.0, and CCX 5.0).
❐ Wi-Fi Protected Setup and Wi-Fi Easy-Setup
■ Programmable dynamic power management.
■ 6 Kb OTP memory for storing board parameters.
■ 316-bump WLCSP (4.583 mm × 5.533mm, 0.2mm pitch)
Figure 1. Functional Block Diagram
CYW54907
2 MB RAM,
640 KB ROM
TCM
512 KB RAM
320 KB ROM
USB 2.0/
HSIC
UART
CSC
PWM
SDIO
SPI
APPS ARM
Cortex-R4
SDIO 3.0
PWM (6)
UART (3)
CSC (2)
32 KB (I),
32 KB (D)
ICACHE
WLAN
ARM
Cortex-R4
AXI-to-AXI
Bridge
AXI to AXI
Bridge
USB
GPIO
JTAG
SPI (2)
Crytography
Engine
AXI
GPIO (17)
DMA
I2S
S/PDIF
or I2S (2)
Audio
RMII/MII
32 kHz
External LPO
WLAN
Audio PLL
IEEE 802.11ac MAC
1 x 1, IEEE 802.11ac PHY
2.4 GHz and 5 GHz Radio
APPS Domain
Always-On Domain
RF Switch Controls
37.4 MHz Crystal
REG_ON
HIB_REG_ON_IN
VBAT
AXI-to-AXI
Bridge
2.4 GHz
5 GHz
LNA
PA LNA
PA
AXI
PS
TX
Switch
PS RAM
PMU
SR_Eng
VIO
WRF_PAOUT_5G
WRF_RFIN_5G
WRF_PAOUT_2G
WRF_RFIN_2G
CSC = Cypress Serial Control. An I2C‐compatible interface.
Document Number: 002-19312 Rev. *C
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