TMS320F241FN datasheet(44/66 Pages) TI

44 / 66 page

TMS320C242

DSP CONTROLLER

SPRS063B – DECEMBER 1997 – REVISED DECEMBER 1999

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251–1443

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†

Supply voltage range, VDD‡

– 0.3 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage range

– 0.3 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output voltage range

– 0.3 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input clamp current IIK (VI < 0 or VI > VDD)

± 20 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output clamp current IOK (VO < 0 or VO > VDD)

± 20 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range, TA: A version(’C242)

– 40

°C to 85°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

S version(’C242)

– 40

°C to 125°C

. . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, Tstg

–55

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

‡ All voltage values are with respect to VSS.

recommended operating conditions§

MIN

NOM

MAX

UNIT

VDD

Supply voltage

4.5

5.5

VSS

Supply ground

XTAL1/CLKIN

V+ 0 3

VIH

High level input voltage

XTAL1/CLKIN

VDD + 0.3

VIH

High-level input voltage

All other inputs

VDD + 0.3

XTAL1/CLKIN

VIL

Low level input voltage

XTAL1/CLKIN

– 0.3

0.7

VIL

Low-level input voltage

All other inputs

– 0.3

0.7

IOH

High-level output current VOH =2 4V

All outputs

– 8

IOH

High-level output current, VOH = 2.4 V

All outputs

– 8

IOL

Low-level output current VOL =0 7V

All outputs

IOL

Low-level output current, VOL = 0.7 V

All outputs

Operating free air temperature

A version

–40

°C

Operating free-air temperature

S version

–40

125

°C

§ Thermal resistance values,

ΘJA (junction-to-ambient) and ΘJC (junction-to-case) for the ’C242 can be found on the mechanical package pages.

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOH

High-level output voltage

5-V operation, IOH = MAX = 8 mA

2.4

VOL

Low-level output voltage

5-V operation, IOL = MAX = 8 mA

0.7

TRST pins with internal pulldown

350

Input current (VI = VSS or VDD)

EMU0, EMU1, TMS, TCK, and TDI

with internal pullup (NMI, XF, BIO)¶

–3 50

µA

All other input-only pins

–5

IOZ

Output current, high-impedance state

(off-state)

VO = VDD or 0 V

–5

µA

Supply current, operating mode

5-V operation, tc(CO) = 50 ns

100

Supply current, Idle 1 low-power mode

LPM0

5-V operation, tc(CO) = 50 ns

IDD# Supply current, Idle 2 low-power mode

LPM1

5-V operation, tc(CO) = 50 ns

Supply current, PLL/OSC power-down

mode

LPM2

5-V operation, at room temperature

µA

Input capacitance

Output capacitance

¶ These three pins are pulled high only on the ’C242, not on emulation devices such as ’F243/’F241.

# In operating mode, the CPU is running a dummy code in B0 program memory. In all IDLE modes, the CPU is idle in B0 program memory.

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