DATA SHEETS

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This section contains specific electrical and timing data for the TMS 1000 series microcomputer.

TMS 1000/1200 AND TMS 1100/1300

ABSOLUTE MAXIMUM RATINGS OVER OPERATING FREE-AIR TEMPERATURE RANGE (UNLESS OTHERWISE NOTED)*

Voltage applied to any device terminal (see Note 1) Supply voltage, VDD

Data input voltage Clock input voltage .

Average output current (see Note 2): 0 outputs R outputs Peak output current: 0 outputs .

R outputs .

Continuous power dissipation: TMS 1000/1100 NL . TMS 1200/1300 N L . Operating free·air temperature range

Storage temperature range.

. -20V -20 V to 0.3 V -20 V to 0.3 V -20 V to 0.3 V -24mA -14mA -48mA -28mA 400mW 600mW O°C to 70°C -55°C to 150°C

·Stresses beyond those listed under" Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the "Recommended Operating Conditions"

section of this specification is not implied. Exposure to absolute·maximum-rated conditions for extended periods may affect device reliability.

RECOMMENDED OPERATING CONDITIONS

PARAMETER MIN NOM MAX UNIT

Supply voltage, VOO (see Note 3) -14 -15 -17.5 V

K -1.3 -1 0.3

High-level input voltage, VIH (see Note 4) V

INIT or Clock -1.3 -1 0.3

Low-level input voltage, VIL (see Note 4) K VOO -4

INIT or Clock VOO -15 -8 V

Clock cycle time, tc(tP) 2.5 3 10 /.IS

Instruction cycle time, tc 15 60 /.IS

Pulse width, clock high, t W(<1>H) 1 /.IS

Pulse width, clock low, twld>U 1 /.IS

Sum of rise time and pulse width, clock high, tr + tw(dlHI 1.25 /.IS

Sum of fall time and pulse Width, clock low, tf + twld>U 1.25 /.IS

Oscillator frequency, fosc 100 400 kHz

Operating free-air temperature, T A 0 70 °c

NOTES: 1. Unless otherwise noted, all voltages are with respect to VSS.

2. These average values apply for any 100-ms period.

3. Ripple must not exceed 0.2 volts peak-to.peak in the operating frequency range.

4. The algebraic convention where the most-positive (least-negative) limit is designated as maximum is used in this specification for logic voltage levels only.

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FIGURE 7 - EXTERNALLY DRIVEN CLOCK INPUT WAVEFORM

Data sheets on pages 1-02 through 1-05 are reproduced by permission of Texas Instruments Incorporated.

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TMS 1000/1200 AND TMS 1100/1300

ELECTRICAL CHARACTERISTICS OVER RECOMMENDED OPERATING FREE·AIR TEMPERATURE RANGE (UNLESS OTHERWISE NOTED)

PARAMETER TEST CONDITIONS MIN Typt MAX UNIT

II Input current, K inputs VI = OV 50 300 500 j./A

VOH

High·level output voltage

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0 outputs 10 = -10mA -1.1:1: -0.6:1:

(see Note 1)

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10L Low·level output current VOL = VOO -100 j./A

IOO(av)

Average supply current from VOO

All outputs open

TMS 1000/1200 (see Note 2) -6 -10 rnA

IOO(av)

Average supply current from VOO

All outputs open

TMS11 00/1300 (see Note 2) -7 -11 rnA

P(AV)

Average power dissipation

All outputs open

TMS 1000/1200 (see Note 2 90 175 mW

P(AV) Average power dissipation

All outputs open

TMS11 00/1300 (see Note 2) 1q5 193 mW

fosc Internal oscillator frequency Rext = 50 kn, Cext = 47 pF 250 300 350 kHz

Ci Small'signal input capacitance, K inputs VI =0, f = 1 kHz 10 pF

Cj(¢) Input capacitance, clock input VI = 0, f=1ookHz 25 pF

t All typical values are at VOO = -15 V, TA = 25°C.

:I: Parts with VOH of -2 V minimum, -1.3 V tvpical, are available if requested.

NOTES: 1. The algebraic convention where the most·positive (least.negative) limit is designated as maximum is used in this specification for logic voltage levels onlv.

2. Values are given for the open·drain 0 and R output configurations. Pull·down resistors are optionally available on all outputs and increase I DO (see Section 4,4).

SCHEMATICS OF INPUTS AND OUTPUTS

TYPICAL OF ALL K INPUTS

INPUT VSS

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TYPICAL OF ALL 0 AND R OPEN·DRAIN OUTPUTS

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TYPICAL OF ALL 0 AND R OUTPUTS WITH OPTIONAL

PULL·DOWN RESISTORS

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The 0 outputs have nominally 60 n on·state impedance; however, upon request a 130·n buffer can be mask program·

med (see note It I section 4.3).

The value of the pull·down resistors is mask alterable and provides the fo!lowing nominal short·circuit output currents (outputs shorted to VSS):

o outputs: 100,200,300,500, or 900 J.1A R outpllls: 100, 150, or 200 J.1A.

TMS 1000/1200 AND TMS 1100/1300

INTERNAL OR EXTERNAL CLOCK.

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If the internal oscillator is used, the OSC1 and OSC2 terminals are shorted together and tied to an external resistor to VOO and a capacitor to VSS' If an external clock is desired, the clock source may be connected to OSC1 and OSC2 shorted to VSS'

CONNECTION FOR INTERNAL OSCILLATOR c_ext

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TYPICAL BUFFER CHARACTERISTICS

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HIGH·LEVEL OUTPUT CURRENT vs

HIGH·LEVEL OUTPUT VOLTAGE

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VOH - High·Lewl Output Volt8Qtl - V

TYPICAL INTERNAL OSCILLATOR FREQUENCY vs

EXTERNAL RESISTANCE

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R OUTPUTS HIGH·LEVEL OUTPUT CURRENT

HIGH·LEVEL OUTPUT VOLTAGE -30 ... --.--.---.---..,....-..;...,...---.r--... -..,....-...,...---.

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ABSOLUTE MAXIMUM RATINGS OVER OPERATING FREE-AIR TEMPERATURE RANGE (UNLESS OTHERWISE NOTED)*

Voltage applied to any device terminal (see Note 1) Supply voltage, V DD

Data input and output voltage with VDD applied (see Note 2) Clock input and IN IT input voltage

Average output current (see Note 3): 0 outputs R outputs Peak output current: 0 outputs .

R outputs .

Continuous power dissipation: TMS 1070 NL . TMS 1270 NL.

Operating free-air temperature range Storage temperature range.

• -20V functional operation of the device at these or any other conditions beyond those indicated in the "Recommended Operating Conditions"

section of this specification is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

RECOMMENDED OPERATING CONDITIONS

Oscillator frequency, fosc 100 400 kHz

Operating free-air temperature, T A 0 70 C

NOTES: 1. Unless otherwise noted, all volt~ges are with respect to VSS.

2. VOO must be within the recommended operating conditions specified in ~.4.

3. These average values apply for any 100-ms period.

4. Ripple must not exceed 0.2 volts peak-to-peak in the operating frequency range.

5. The algebraic convention where the most-positive (least-negative) limit is designated as maximum is used in this specification for logic voltage levels only.

ELECTRICAL CHARACTERISTICS OVER RECOMMENDED OPERATING FREE-AIR TEMPERATURE RANGE (UNLESS OTHERWISE NOTED)

PARAMETER TEST CONDITIONS MIN Typt MAX UNIT

NOTE 1: The algebraic convention where the most-positive (least-negative) limit is designated as maximum is used in this specification.

for logic voltage levels only.

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Chapter 2 THE MOSTEK 3870

Im Dokument With By (Seite 65-70)

DATA SHEETS

DATA SHEETS

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Chapter 2

THE MOSTEK 3870

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