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TMP320C33FN120 View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
TMP320C33FN120 DIGITAL SIGNAL PROCESSOR TI
Texas Instruments TI
TMP320C33FN120 Datasheet PDF : 57 Pages
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TMS320VC33
DIGITAL SIGNAL PROCESSOR
SPRS087E − FEBRUARY 1999 − REVISED JANUARY 2004
Terminal Functions (Continued)
TERMINAL
TYPE†
NAME
QTY
DESCRIPTION
CONDITIONS
WHEN
SIGNAL IS Z TYPE‡
TIMER SIGNALS
TCLK0
1
I/O/Z
Timer clock 0. As an input, TCLK0 is used by timer 0 to count external pulses. As
an output, TCLK0 outputs pulses generated by timer 0.
S
R
TCLK1
1
I/O/Z
Timer clock 1. As an input, TCLK1 is used by timer 1 to count external pulses. As
an output, TCLK1 outputs pulses generated by timer 1.
S
R
SUPPLY AND OSCILLATOR SIGNALS
H1
1
O / Z External H1 clock
S
H3
1
O / Z External H3 clock
S
CVDD
8
I
+VDD. Dedicated 1.8-V power supply for the core CPU. All must be connected to
a common supply plane.§
DVDD
16
I
+VDD. Dedicated 3.3-V power supply for the I/O pins. All must be connected to a
common supply plane.§
VSS
PLLVDD
PLLVSS
EXTCLK
18
I Ground. All grounds must be connected to a common ground plane.
1
I
Internally isolated PLL supply. Connect to CVDD (1.8 V)
1
I
Internally isolated PLL ground. Connect to VSS
1
I
External clock. Logic level compatible clock input. If the XIN/XOUT oscillator is
used, tie this pin to ground.
XOUT
1
O
Clock out. Output from the internal-crystal oscillator. If a crystal is not used, XOUT
should be left unconnected.
XIN
1
I
Clock in. Internal-oscillator input from a crystal. If EXTCLK is used, tie this pin to
ground.
CLKMD0,
CLKMD1
2
I Clock mode select pins
RSV0 − RSV1 2
I
Reserved. Use individual pullups to DVDD.
JTAG EMULATION
EMU1 −EMU0 2
TDI
1
I/O Emulation pins 0 and 1, use individual pullups to DVDD
I Test data input
TDO
1
O Test data output
TCK
1
I Test clock
TMS
1
I Test mode select
TRST
1
I Test reset
I = input, O = output, Z = high-impedance state
S = SHZ active, H = HOLD active, R = RESET active
§ Recommended decoupling. Four 0.1 µF for CVDD and eight 0.1 µF for DVDD.
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
7
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