Rainbow Electronics MAX3420E - Manual (Page 3)

MAX3420E
USB Peripheral Controller
with SPI Interface
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Functional Diagram
GPIN3
R GPIN
1V–3V
VBCOMP
D-
D+
V CC
GPIN2 GPIN1 GPIN0 GPOUT3
GPOUT2
GPOUT1
GPOUT0
VBUS
COMP
SS
MISO
SCLK
INT
SPI SLAVE
INTERFACE
USB SIE
(SERIAL-INTERFACE ENGINE)
FULL-SPEED
USB
TRANSCEIVER
RESET
LOGIC
1.5k Ω
INTERNAL
POR
RES XI V L XO
POWER
DOWN
OSC
AND
PLL 4X
48MHZ
ESD
PROTECTION
ESD
PROTECTION
GPX
VBUS_DET
OPERATE SOF BUSACT
MUX
0 1 2 3
MOSI
VBUS_DET
ENDPOINT
BUFFERS
MAX3420E
GND