TS3DDR32611_15 Datasheet, PDF (2/13 Pages) Texas Instruments – 1A Peak Sink/Source PCDDR3 Termination Regulator with Integrated Isolation Switch and Low Power Mode Operation

TS3DDR32611
SCDS347A – AUGUST 2013 – REVISED SEPTEMBER 2013
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
DIE SIZE: 4.0 mm × 4.0 mm
BUMP PITCH: 0.5 mm
7 654 321
1 234 567
G
CH5 CH9 CH13 CH17 CH22 VDD VDDQ
F
CH3
CH7
CH11 CH15 CH21 CH23
VLDO
IN
E
CH1 GND GND GND GND VTT VTT
G
VDDQ VDD CH22 CH17 CH13 CH9 CH5
F
VLDO
IN
CH23 CH21 CH15 CH11
CH7
CH3
E
VTT VTT GND GND GND GND CH1
D
CH0 GND GND GND GND
NC
VTT
SNS
C
CH2 GND GND GND
VTT
PGND
REF
B
VTT
CH4 CH8 CH12 CH16 CH20 CH24
EN
A
CH6 CH10 CH14 CH18 CH19 CH25
ODT
EN
D
VTT
SNS
NC
GND GND GND GND
CH0
C
VTT
PGND
REF
GND GND GND CH2
B
VTT
EN ^{CH24 CH20 CH16 CH12}
CH8
CH4
A
ODT
EN ^{CH25 CH19 CH18 CH14 CH10}
CH6
Switch I/O
GND
LDO Power
LDO I/O
Control
NC
TS3DDR32611 Pin Mapping⁽¹⁾
7
6
5
4
G
CH5
CH9
CH13
CH17
F
CH3
CH7
CH11
CH15
E
CH1
GND
GND
GND
D
CH0
GND
GND
GND
C
CH2
GND
GND
GND
B
CH4
CH8
CH12
CH16
A
CH6
CH10
CH14
CH18
(1) The NC must be floating, and cannot be connected to anything.
3
CH22
CH21
GND
GND
CH20
CH19
2
VDD
CH23
VTT
NC
VREF
CH24
CH25
1
VDDQ
VLODIN
VTT
VTTSNS
PGND
VTT_EN
ODT_EN
PIN
NO.
NAME
C4, C5, C6, D3, D4, D5,
D6, E3, E4, E5, E6
GND
E1, E2
VTT
C1
PGND
D1
VTTSNS
F1
VLDOIN
C2
VREF
B1
VTT_EN
A1
ODT_EN
G1
VDDQ
G2
VDD
D7, E7, C7, F7, B7, G7,
A7, F6, B6, G6, A6, F5,
B5, G5, A5, F4, B4, G4,
A4, A3, B3, F3, G3, F2,
B2, A2
CH0-CH25
D2
NC
TYPE
—
O
—
I
I
O
I
I
I
I
I/O
—
PIN FUNCTIONS
DESCRIPTION
Signal Ground
Power output for VTT LDO, need to connect 10-μF or greater MLCC for stability
Power GND for VTT LDO
VTT LDO voltage sense input
Power supply input for VTT/ VTTREF
VREF buffered reference output. Need to connect 0.22-μF or greater MLCC for stability.
Enable signal for VTT and VREF output
Enable signal for Switch
VDDQ input, reference input for VREF
Device power supply input 3.3 V typical
Switch input or output
Not connected, must be floating and cannot be connected to any signal
2
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