TMS320C51 datasheet(46/87 Pages) TI

46 / 87 page

TMS320C5x, TMS320LC5x

DIGITAL SIGNAL PROCESSORS

SPRS030A – APRIL 1995 – REVISED APRIL 1996

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251–1443

electrical characteristics over recommended ranges of supply voltage and operating ambient-air

temperature (unless otherwise noted) (’320C5x only)

PARAMETER

TEST CONDITIONS

MIN

TYP‡

MAX

UNIT

VOH

High-level output voltage (see Note 4)

IOH = 300 µA

2.4

VOL

Low-level output voltage (see Note 4)

IOL = 2 mA

0.3

0.6

IOZ

High impedance output current (VDD = 5 25 V)

BR (with internal pullup)

– 500

µA

IOZ

High-impedance output current (VDD = 5.25 V)

All other 3-state outputs

–20

µA

TRST (with internal pulldown)

–10

800

Input current ( VI =VSS to VDD)

TMS, TCK, TDI (with internal pullups)

– 500

µA

Input current (VI = VSS to VDD)

X2 /CLKIN

–50

µA

All other inputs

–10

fx = 40 MHz,

VDD = 5.25 V

IDD(

)

Supply current core CPU

fx = 57 MHz,

VDD = 5.25 V

IDD(core)

Supply current, core CPU

fx = 80 MHz,

VDD = 5.25 V

fx = 100 MHz,

VDD = 5.25 V

110

fx = 40 MHz,

VDD = 5.25 V

IDD( i )

Supply current pins

fx = 57 MHz,

VDD = 5.25 V

IDD(pins)

Supply current, pins

fx = 80 MHz,

VDD = 5.25 V

fx = 100 MHz,

VDD = 5.25 V

IDD(standby)Supply current, standby

IDLE2, divide-by-two clock mode, clocks

shut off

µA

Input capacitance

Output capacitance

† Typical values are at VDD = 5 V, TA = 25°C, unless otherwise specified.

NOTE 4: Figure 9 shows the test load circuit and Figure 10 and Figure 11 show the voltage reference levels.

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