Texas Instruments TMS320 specifications Recommended operating conditions, MIN NOM MAX Unit

Page 21

TMS32020

SPRS010B Ð MAY 1987 Ð REVISED NOVEMBER 1990

absolute maximum ratings over specified temperature range (unless otherwise noted)²

Supply voltage range, VCC³

. ± 0.3

V to 7 V

Input voltage range

. ± 0.3

V to 7 V

Output voltage range

. ± 0.3

V to 7 V

Continuous power dissipation

. . . . . . . .

. . 2 W

Operating free-air temperature range

. . . 0°C to 70°C

Storage temperature range

± 55°C to 150°C

²Stresses beyond those listed under ªAbsolute Maximum Ratingsº may cause permanent damage to the device. This is a stress ratingonly, and functional operation of the device at these or any other conditions beyond those indicated in the ªRecommended Operating Conditionsº section of

this specification is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. ³ All voltage values are with respect to VSS.

recommended operating conditions

 

 

 

MIN

NOM

MAX

UNIT

 

 

 

 

 

 

 

VCC

Supply voltage

4.75

5

5.25

V

VSS

Supply voltage

 

0

 

V

VIH

High-level input voltage

All inputs except CLKIN

2

VCC + 0.3

V

CLKIN

2.4

VCC + 0.3

V

 

 

VIL

Low-level input voltage

All inputs except CLKIN

± 0.3

 

0.8

V

 

 

 

 

 

CLKIN

± 0.3

 

0.8

V

 

 

 

 

 

 

 

 

 

 

IOH

High-level output current

 

 

300

A

IOL

Low-level output current

 

 

2

mA

TA

Operating free-air temperature (see Notes 1 and 2)

0

 

70

°C

NOTES: 1. Case temperature (TC) must be maintained below 90°C. 2. RθJA = 36°C/Watt, RθJC = 6°C/Watt.

electrical characteristics over specified free-air temperature range (unless otherwise noted)

 

PARAMETER

TEST CONDITIONS

MIN

TYP§

MAX

UNIT

VOH

High-level output voltage

VCC = MIN, IOH = MAX

2.4

3

 

V

VOL

Low-level output voltage

VCC = MIN, IOL = MAX

 

0.3

0.6

V

IZ

Three-state current

VCC = MAX

±20

 

20

A

II

Input current

VI = VSS to VCC

±10

 

10

A

 

 

TA = 0°C, VCC = MAX, fx = MAX

 

 

360

mA

ICC

Supply current

TA = 25°C, VCC = MAX, fx = MAX

 

250

 

mA

 

 

TC = 90°C, VCC = MAX, fx = MAX

 

 

285

mA

CI

Input capacitance

 

 

 

15

pF

CO

Output capacitance

 

 

 

15

pF

§ All typical values for ICC are at VCC = 5 V, TA = 25°C.

ADVANCE INFORMATION

This device contains circuits to protect its inputs and outputs against damage due to high static voltages or electrostatic fields. These circuits have been qualified to protect this device against electrostatic discharges (ESD) of up to 2 kV according to MIL-STD-883C, Method 3015; however, it is advised that precautions should be taken to avoid application of any voltage higher than maximum-rated voltages to these high-impedance circuits. During storage or handling, the device leads should be shorted together or the device

should be placed in conductive foam. In a circuit, unused inputs should always be connected to an appropriated logic voltage level, preferably either VCC or ground. Specific guidelines for handling devices of this type are contained in the publication Guidelines for Handling Electrostatic-Discharge-Sensitive (ESDS) Devices and Assemblies available from Texas Instruments.

POST OFFICE BOX 1443 HOUSTON, TEXAS 77001

21

Image 21
Contents Description TMS320 SECOND-GENERATION Digital Signal ProcessorsSignals Definition PGA and PLCC/CER-QUAD PIN AssignmentsFunction PIN Introduction Bit-Reversed Indexed-Addressing Mode for Key Features TMS32020Memory Space Wait States for Communication to Slower Off-ChipTMS320 Second-Generation Device Overview ArchitecturePackage TypeSECOND-GENERATION Devices Functional block diagram TMS320C2xScaling shifter Timer16 ⋅ 16-bit parallel multiplier Memory controlMemory Maps TMS320 SECOND-GENERATION DevicesInterrupts and subroutines External interfaceMultiprocessing Repeat feature Instruction setAddressing modes Instruction Symbols Symbol DefinitionInstruction set summary TMS320C25 Instruction Set Summary XOR SUBT²XORK² ZACLPH ² ApacLTA LTP ²Data Memory Operations Mnemonic Description Words TMS320C25 Instruction Set Summary concluded TMS32020 Product Notification TMS32020Development support TMS320 Second-Generation Software and Hardware Support Software Tools Part NumberHardware Tools Part Number Documentation support Specification overviewRecommended operating conditions MIN NOM MAX UnitParameter Test Conditions MIN TYP§ MAX Unit Clock Characteristics and Timing Internal clock optionExternal clock option Test Load Circuit Parameter MIN TYP MAX Unit Memory and Peripheral Interface TimingRS, INT, BIO, and XF Timing Hold TimingHold Holda Serial Port Timing INT Clkin / Clkx / Clkr MP/MC IOHTMS320C25GBA Parameter Test Conditions MIN TYP MAX Unit Clkin External Clock OptionVOH Min TdC1L-AL Low after CLKOUT1 low Serial Port Timing See Notes 14 Eprom ProgrammingVPP IPP1INT0 INT2 VIH CLKIN, CLKX, ClkrMP/MC VIL CLKOUT1, CLKOUT2 Internal Clock Option External clock optionFcrystal TdC1-S From Clkout if Is present TsuIN Setup before CLKOUT1 high Clock characteristics and timing Contrast Summary of Electrical SpecificationsParameter MIN TYP MAXRS, INT, BIO, and XF timing Memory and peripheral interface timingHold timing Serial port timingClock timing Timing DiagramsMemory read timing BR, PS, D SReady CLKOUT1 CLKOUT2 Strb Memory write timingMSC One wait-state memory access timingIack Reset timingInterrupt timing TMS320C25 Interrupt timing TMS32020Serial port transmit timing Serial port receive timingExternal flag timing BIO timingPC = N PC = N + Hold Hold timing part aHolda ExecuteHold timing part B CLKOUT1 CLKOUT2Holda Fetch Fetch Execute Or is D15-D0 TdHH-AH TMS320C25FNL Plcc reflow soldering precautions Typical Supply Current Characteristics for TMS320C25Mechanical Data Pin GB grid array ceramic package TMS32020, TMS320C25Parameter MAX Unit Advance Jedec NO. Outline Terminals MIN MAX Fast programming and verification Programming the TMS320E25 Eprom cellVCC Pin Nomenclature TMS320E25EPT EPT VPPSignal TMS320E25 Programming Mode LevelsProgram Read Output Name ² PIN Verify Inhibit Disable ErasureProgram verify Fast Programming FlowchartOutput disable ReadROM protection and verification Eprom protect TMS320E25 Protect and Verify Eprom Mode LevelsVIH VIL PGM VPP VCC VSS Clkin EPT VPPRbit EpromVCC VIH VIL PGM VIH/VOH HI-Z VIL/VOL VPP EPT VSS VIH VIL VPP VCCTMS320 SECOND-GENERATION NIL Other Qualified Versions of TMS320C25 Packaging InformationImportant Notice