SMSC USB2250i User Manual
Page 9
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
Datasheet
SMSC USB2250/50i/51/51i
9
Revision 1.1 (05-29-08)
DATASHEET
MEMORY/IO INTERFACE (28 PINS)
MA0/CLK_SEL0
MA1/CLK_SEL1
MA2
MA3
MA4
MA5
MA6
MA7
MA8
MA9
MA10
MA11
MA12
MA13
MA14
MA15
MA16
MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
nMRD
nMWR
nMCE
MISC (10 PINS)
nRESET
GPIO3 (VBUS_DET)
GPIO4 (SCL/xD_ID)
GPIO5 (SDA)
LED1 / GPIO1
GPIO8/CARD_PWR0
GPIO9/CARD_PWR1
GPIO10/CARD_PWR2
GPIO11/CARD_PWR3
TEST
DIGITAL, POWER (14 PINS)
(5) VDD33
(1) VDD18
(8) VSS
TOTAL 128
Table 3.1 USB2250/50i/51/51i 128-Pin VTQFP Package (continued)