1www.pericom.com P-0.1 07/06/12
PI2DDR3212
PI6C20800B
Pin Configuration (52-pin TQFN)
Description
is 14-bit DDR switch is designed for 1.5V or 1.8V supply
voltage, SSTL_15 or SSTL_18 signaling and CMOS select input
signals. It is designed for DDR2 or DDR3 memory bus with speed
up to 5Gbps.
PI2DDR3212 has a 1:2 demux or 2:1 mux topology. All 14-bit
channels can be switched to one of the two ports simultaneously
with the SEL input. is device also allows all ports to be discon-
nected.
PI2DDR3212 uses Pericom’s proprietary high speed switch tech-
nology providing consistent high bandwidth across all channels,
with very little insertion loss, cross-talk, and bit to bit skew.
It is available in a 52-pin TQFN 3.5x9x0.4mm package and
48-pin TFBGA 4.5x4.5x0.8mm package. e 48-pin version is
pin compatible with CBTW28DD14.
Features
14 bit 2:1 DDR3 Switch
14 bit 2:1 switch that supports up to 5Gbps DDR3 signals
VDD 1.5V or 1.8V +/- 10%
SEL and Global Enable
220 µA typ. operating current
High impedance and low Co channel output when disabled
or deselected
Low RON: 8Ω typical
3dB Bandwidth: 2.7GHz
Low insertion loss: -0.6dB (0≤f≤1GHz)
Low cross-talk for high speed channels:
-18dB typ. (0<f<2GHz)
Low bit-to-bit skew 20ps Max
ESD: 2KV HBM
SSTL_15 or SSTL_18 signaling
Packaging (Pb-free and Green)
52 pin TQFN (3.5x9x0.4mm)
48 pin TFBGA (4.5x4.5x0.8mm)pin compatible with
CBTW28DD14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
B11
C11
B10
C10
B9
C9
B8
C8
B7
C7
V
B6
C6
B5
C5
B4
C4
B3
C3
B2
C2
GND
EN
DD
A13
A12
A11
V
DD
A10
A9
A8
A7
GND
A6
A5
A4
A3
V
DD
A2
A1
A0
SEL
GND
22
23
24
25
26
52
51
50
49
48
B13
C13
B12
C12
GND
C0
B0
C1
B1
GND
