USB2251-NU-05 Standard Microsystems (SMSC), USB2251-NU-05 Datasheet - Page 23

• Manufacturer Part Number: USB2251-NU-05
• Description: ULTRA FAST USB 2.0 MULTI-SLOT FLASH MEDI
• Manufacturer: Standard Microsystems (SMSC)

Specifications of USB2251-NU-05

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
Datasheet
SMSC USB2250/50i/51/51i
PIN
105
108
106
109
107
117
116
114
112
110
111
113
12
10
23
22
21
19
11
13
32
27
25
24
28
37
36
35
CF_DMARQ / RXD /
GPIO15 (SD_nCD)
MA0 / CLK_SEL0
MA1 / CLK_SEL1
GPIO6 (SD_WP)
PIN NAME
GPIO2
SD_D0
SD_D1
SD_D2
SD_D3
SD_D4
SD_D5
SD_D6
SD_D7
MA10
MA13
MA16
MA11
MD0
MD1
MD2
MA2
MA3
MA4
MA5
MA6
MA7
MA8
MA9
FUNCTION
Table 7.2 USB2250/50i/51/51i 128-Pin Reset States
GPIO
GPIO
GPIO
SD
SD
SD
SD
SD
SD
SD
SD
MA
MA
MA
MA
MA
MA
MA
MA
MA
MA
MA
MA
MA
MA
MA
MA
MA
RESET STATE
INPUT
/ OUT-
PUT
IP
IP
IP
IP
IP
0
z
z
z
z
z
z
z
z
0
0
0
0
0
0
0
0
0
0
0
z
z
z
PU/
PD
pu
pd
pd
pd
pd
pu
pu
pu
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
DATASHEET
23
PIN
120
103
121
115
118
34
18
31
30
29
33
26
14
78
76
16
64
55
48
56
54
1
4
2
3
5
7
8
GPIO10 / CRD_PWR2
GPIO11 / CRD_PWR3
GPIO4 (SCL / xD_ID)
GPIO8 / CRD_PWR0
GPIO9 / CRD_PWR1
GPIO3 (VBUS_DET)
GPIO5 (SDA)
LED / GPIO1
PIN NAME
SM_nB/R
SM_nWE
SM_nRE
SM_nCE
SD_CLK
nRESET
nMWR
nMRD
nMCE
MA12
MA14
MA15
USB+
TEST
USB-
MD3
MD4
MD5
MD6
MD7
FUNCTION
nRESET
GPIO
GPIO
GPIO
GPIO
TEST
GPIO
USB+
GPIO
GPIO
GPIO
USB-
MA
MA
MA
MA
MA
MA
MA
MA
MA
MA
MA
SM
SM
SM
SM
SD
Revision 2.0 (09-29-09)
RESET STATE
INPUT/
OUT-
PUT
IP
IP
IP
1
1
0
0
0
0
0
1
0
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
PU/
PD
pu
pu
pu
pu
pu
pu
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--