Datasheet
TUSB7320, TUSB7340
www.ti.com
SLLSE76E–MARCH 2011– REVISED JULY 2011
Table 2-6. Test and Miscellaneous Signals (continued)
TERMINAL
I/O DESCRIPTION
TUSB7320 TUSB7340
NAME
PIN NO. PIN NO.
GPIO[0]
GPIO[1] A49, B46, A49, B46, I/O
General purpose I/O
GPIO[2] B47, B48 B47, B48 PU
GPIO[3]
System management interrupt
SMI B3 B3 O
Note: This pin is active high and should not be pulled up/down.
R1EXT High precision external resistor used for calibration. A resister value of 9.09 KΩ ±1%
A24, B23 A24, B23 OI
R1EXTRTN accuracy is connected between the terminals R1EXT and R1EXTRTN.
Auxiliary power detect. This pin indicates if the TUSB73X0 is enabled for wakeup from
D3cold.
AUX_DET A52 A52 I
Note: If this feature is implemented, AUX_DET must be pulled to VDD33 to prevent
leakage.
B4, A5, B5,
B6, A7, B7,
A8, B8, B13,
A14, B25,
A26, B26, A14, B8, Pins are not connected internally.
NC A27, B27, B13, A26, I/O Note: TUSB7320 pins B4 and B26 may be connected to VDDA_3P3 to support a
B28, A29, B29, A43 dual-layout option with the TUSB7340.
B29, A30,
A43, B43,
B45, A46,
A48
Table 2-7. Power Signals
TERMINAL
I/O DESCRIPTION
TUSB7320 TUSB7340
NAME
PIN NO. PIN NO.
A3, A34, A3, A34,
PW
VDD33 A39, A47, A39, A47, 3.3-V I/O power rail
R
A51 A51
B4, B11,
B11, A19,
A19, A21, PW
VDDA_3P3 A21, A25, 3.3-V analog power rail
A25, B22, R
B22, A44
B26, A44
A1, B1, A4, A1, B1, A4,
A6, A9, A12, A6, A9,
A16, B17, A12, A16,
B19, B24, B17, B19,
PW
VDD11 A28, A33, B24, A28, 1.1-V core power rail
R
A31, A38, A33, A31,
B37, B40, A38, B37,
B42, B44, B40, B42,
A50 B44, A50
PW
VSS B20, A53 B20, A53 Ground. The ground pad is labeled A53 for schematic purposes.
R
C1, C2, C3, C1, C2, C3, PW The corner pins, which are for mechanical stability of the package, are connected to
VSS_NC
C4 C4 R ground internally. These pins may be connected to VSS or left unconnected.
Oscillator return.
PW If using a crystal, the load capacitors should use this signal as the return path and it
VSS_OSC B21 B21
R should not be connected to the PCB ground.
If using an oscillator, this should be connected to PCB Ground.
Copyright © 2011, Texas Instruments Incorporated OVERVIEW 21
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