TMS320DM647_0804 datasheet(55/182 Pages) TI

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5.3 Electrical Characteristics

TMS320DM647/TMS320DM648

Digital Media Processor

www.ti.com

SPRS372B – MAY 2007 – REVISED APRIL 2008

Over Recommended Ranges of Supply Voltage and Operating Temperature (Unless Otherwise Noted)

PARAMETER

TEST CONDITIONS (1)

MIN

TYP

MAX

UNIT

3.3-V pins (except PCI-capable

DVDD33 = MIN, IOH = MAX

0.8DVDD33

and I2C pins)

VOH High-level

output voltage

PCI-capable pins(2)

DVDD33 = 3.3V, IOH = -0.5 mA

0.9DVDD33

DDR2 memory controller pins

1.4

3.3-V pins (except PCI-capable

DVDD33 = MIN, IOL = MAX

0.22DVDD33

and I2C pins)

VOL Low-level

PCI-capable pins(2)

DVDD33 = 3.3V, IOL = 1.5 mA

0.1DVDD33

output voltage

I2C pins

Pulled up to 3.3 V, 3 mA sink current

0.4

DDR2 memory controller pins

0.4

VI = VSS to DVDD33 without internal pullup oe

-1

µA

pulldown resistor

3.3-V pins (except PCI-capable

VI = VSS to DVDD33 with internal pullup resistor

100

400

µA

and I2C pins)

(2)

II Input current [dc]

VI = VSS to DVDD33 with opposing internal

-400

-100

-50

µA

pulldown resistor (2)

Input current [dc] (I2C)

0.1DVDD33 ≤ VI ≤ 0.9DVDD33

-10

µA

PCI-capable pins(4)

-600

600

µA

IOH High-level

All peripherals other than DDR2

-8

output current [dc]

and PCI

DDR2 memory controller pins

-4

PCI-capable pins(2)

-0.5

IOL Low-level

All peripherals other than DDR2

output current [dc]

, PCI and I2C

I2C pins

DDR2 memory controller pins

PCI-capable pins(2)

1.5

IOZ I/O Off-state

3.3-V pins

-20

µA

output current [DC]

CVDD = 1.2-V, DSP clock = 720 MHz

1727

Core (CVDD, VDDA_1P1V) supply

ICDD

current(3)

CVDD = 1.2-V, DSP clock = 900 MHz

1980

DVDD = 3.3-V, DSP clock = 720 MHz

200

3.3-V I/O (DVDD33) supply

IDDD

current(3)

DVDD = 3.3-V, DSP clock = 900 MHz

202

1.8-V I/O (DVDDR2,

DVDD = 1.8-V, DSP clock = 720 MHz

230

DDR_VDDDLL, PLLVPRW18,

IDDD

VDDA_1P8V, MXVDD) supply

DVDD = 1.8-V, DSP clock = 900 MHz

230

current(3)

Input capacitance

Output capacitance

(1)

For test conditions shown as MIN, MAX, or NOM, use the appropriate value specified in the recommended operating conditions table.

(2)

Applies only to pins with an internal pullup (IPU) or pulldown (IPD) resistor.

(3)

Assumes the following conditions: 50% DSP CPU utilization; (peripheral configurations, other housekeeping activities) DDR2 at 50%

utilization (266 MHz ), 50% writes, 32 bits, 100% bit switching, 110-MHz Video Ports at 100% utilization, MCASP operating at 25 Mhz

with 100% utilization with 10 serializers, Timer0,1 at 100% utilization, VICP with 100% utilization, PCI operating at 66 Mhz with 50%

writes at room temp (25°C) using ZUT package. (as in the power appnote) for the three items.

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