DM368ZCEZ datasheet(77/208 Pages) TI1

77 / 208 page

TMS320DM368

www.ti.com

SPRS668C

– APRIL 2010 – REVISED JUNE 2011

6.2

Recommended Clock and Control Signal Transition Behavior

All clocks and control signals should transition between VIH and VIL (or between VIL and VIH) in a

monotonic manner.

6.3

Power Supplies

The power supplies are summarized in Table 6-1.

Table 6-1. Power Supplies

CUSTOMER

TOLERANCE

PACKAGE

DEVICE PLANE

DESCRIPTION

BOARD SUPPLY

PLANE

1.35V

±5%

1.35V

CVDD

Core power supply

VDD12_PRTCSS

RTC oscillator power supply

PWR CTRL power supply

PWR CTRL 1.35-V I/O power supply

VDDA12_DAC

DAC 1.35-V analog power supply

VPP

VPP power supply

1.8 V

±5%

1.8 V

VDD18_PRTCSS

PWR CTRL 1.8-V power supply

VDDMXI

MXI1 (oscillator) 1.8-V power supply

VDD18_SLDO

Power supply for internal RAM

For proper device operation, this pin must be connected to VDDS18.

VDD18_DDR

1.8-V DDR2 Supply Voltage

VDDA18_PLL

1.8-V PLL Analog Supply Voltage

VDDA18_USB

1.8-V USB Analog Supply Voltage

VDDA18_VC

1.8-V Voice Codec Module Analog Supply Voltage

VDDA18_DAC

1.8-V DAC Analog Supply Voltage

VDDS18

1.8-V Supply Voltage

VDDA18_ADC

1.8-V ADC Supply Voltage

3.3 V

±5%

3.3 V

VDDS33

3.3-V I/O Supply Voltage

VDDA33_USB

3.3-V USB Analog Supply Voltage

VDDA33_VC

3.3-V Voice Codec Module Analog Supply Voltage

1.8/3.3 V

±5%

1.8/3.3 V

VDD_AEMIF1_18_33

Switchable 3.3/1.8-V EMIF1 Supply Voltage (1)

Note: Power supply is switchable for AEMIF and its multiplexed

peripherals (3.3/1.8 V) (2).

VDD_AEMIF2_18_33

Switchable 3.3/1.8-V EMIF2 Supply Voltage (3)

Note: Power supply is switchable for AEMIF and its multiplexed

peripherals (3.3/1.8 V) (2).

VDD_ISIF18_33

Switchable 3.3/1.8-V ISIF Supply Voltage (4)

Note: Power supply is switchable for ISIF and its multiplexed

peripherals (3.3V/1.8V)(5)

0 V

VSS_MX1

Oscillator (MXI1) ground

Note: For proper device operation, connect to external crystal

capacitor ground and must be kept separate from other grounds.

0 V

VSS_32K

Oscillator (32K) ground

Note: For proper device operation, connect to external crystal

capacitor ground and must be kept separate from other grounds.

0 V

VSS

Ground

(1)

VDD_AEMIF1_18_33 : can be used as a power supply for EM_A[3:13], EM_BA0, EM_BA1, EM_CE[0], EM_ADV, EM_CLK,

EM_D[8:15 ]pins, Keyscan, or GPIO pins.

(2)

Example 1: VDD_AEMIF2_18_33 at 1.8-V for 8-bit NAND VDD_AEMIF1_18_33 at 3.3-V for GPIO.

Example 2: VDD_AEMIF1_18_33 and VDD_AEMIF2_18_33 at 1.8-V for 16-bit NAND.

(3)

VDD_AEMIF2_18_33: can be used as a power supply for EM_A[0:2], EM_CE[1], EM_WE, EM_OE, EM_WAIT, EM_D[0:7] pins, HPI,

Keyscan, or GPIO pins.

(4)

VDD_ISIF_18_33: can be used as a power supply for VPFE pins (CIN[7:0], YIN[7:0], C_WE_FIELD, PCLK), or SPI3

(SPI3_SCLK,SPI3_SIMO,SPI3_SCS[0], SPI3_SCS[1]) or USBDRVVBUS or GPIO pins.

(5)

Example 1 VDD_ISIF_18_33 power supply can be at 1.8V for VPFE pin functionality or it can be at 3.3V if other peripherals pin functionality

is to be used like SPI3 or GPIO or CLKOUT0, or USBDRVVBUS.

Peripheral Information and Electrical Specifications

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