User Manual

MAX3420E
USB Peripheral Controller
with SPI Interface
_______________________________________________________________________________________ 3
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
1.5kΩ
INTERNAL
POR
XIV
L
XO
POWER
DOWN
OSC
AND
PLL 4X
48MHZ
ESD
PROTECTION
ESD
PROTECTION
GPX
VBUS_DET
OPERATE
SOF
BUSACT
MUX
0123
MOSI
VBUS_DET
ENDPOINT
BUFFERS
MAX3420E
GND