cbtu4411 NXP Semiconductors, cbtu4411 Datasheet - Page 3

• Manufacturer Part Number: cbtu4411
• Description: Cbtu4411 11-bit Ddr2 Sdram Mux/bus Switch With 12 Ohm On-resistance
• Manufacturer: NXP Semiconductors

Philips Semiconductors
72-BALL BGA CONFIGURATION
PIN DESCRIPTION
2006 Sep 22
G11, H1, H2, H10, H11,
K6, K9, K11, L[1:9], L11
C10, C11, D11, E1, E2,
E10, E11, F1, F11, G1,
B5, B8, B10, D10, F2,
B4, B9, D2, F10, G2,
G10, J2, K3, K5, K8,
A[4:11], B6, B7, B11,
J1, J10, J11, K1, K4,
11-bit DDR2 SDRAM mux/bus switch
with 12
PIN NUMBER
A3, B3, L10
B2, A1
K2, K7
K10
C2
A2
C1
D1
B1
on-resistance
A
B
C
D
E
F
G
H
J
K
L
NOTE: BLANK SPACE INDICATES NO BALL
2DP10
1DP10
0DP10
TERM
V
3DP9
1DP9
0DP9
3DP8
V
S1
BIAS
REF
1
0DP10–3DP10
0DP0–3DP0
0DP1–3DP1
0DP2–3DP2
0DP3–3DP3
0DP4–3DP4
0DP5–3DP5
0DP6–3DP6
0DP7–3DP7
0DP8–3DP8
0DP9–3DP9
HP0–HP10
SYMBOL
STREN
STREN
S0, S1
TERM
V
3DP10
V
GND
HP10
2DP9
2DP8
V
GND
GND
GND
HP9
EN
BIAS
EN
REF
S0
DD
2
1DP8
V
V
HP8
3
DD
DD
Figure 1. Ball configuration (transparent top view)
Host ports
LVCMOS level Enable input (active LOW). When connected HIGH, all DIMM ports will be
disconnected (show a high-impedance path) from the Host ports
STRobe ENable. LVCMOS level STRobe ENable input (active HIGH). When tied LOW,
Channel 10 (HP10 and its DP ports) functions identically to all other channels. When tied
HIGH, Channel 10 is designated as the STROBE channel (see Function Table and Simplified
Schematic).
Select inputs, type SSTL_18. See Function Table.
Reference voltage for the pseudo-differential SSTL_18 select inputs (S0, S1)
Voltage bias for the DIMM-port pull-down resistor (R
LVCMOS level input pin activates termination resistance on Sn inputs when HIGH;
high-impedance when LOW.
DIMM ports
Ground
Positive supply voltage
0DP0
0DP8
3DP7
GND
4
1DP0
2DP7
HP0
HP7
5
2DP0
3DP0
0DP7
1DP7
6
3
1DP1
0DP1
3DP6
GND
7
NAME AND FUNCTION
2DP1
2DP6
HP1
HP6
8
3DP1
0DP6
1DP6
GND
9
pd
)
0DP2
0DP3
2DP3
2DP4
1DP5
GND
HP3
HP2
HP4
HP5
V
10
DD
1DP2
2DP2
3DP2
1DP3
3DP3
0DP4
1DP4
3DP4
0DP5
2DP5
3DP5
11
CBTU4411
Product data sheet
SA00655