TRAC-S2 查看數據表（PDF） - Zetex => Diodes

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TRAC-S2

TRAC® SUPPORT CIRCUIT

Zetex => Diodes 

TRAC-S2

ELECTRICAL CHARACTERISTICS

Test Conditions: Temperature=25°C, VDD=5V, VSS=0V, CLCR_IN=0V,

100nF between AGND_OUT and VSS, unless otherwise stated.

DATA_OUT(Frequency)

DATA_OUT(High output

voltage)

SELECT

(Output Voltage)

2.2nF between CAP and VSS

CLCR_IN = 5V

2.2nF between CAP and VSS

CLCR_IN = 5V

2.2nF between CAP and VSS

CLCR_IN = 5V

1.7kHz 2.5kHz

3.90V

4.10V

4.8V

4.99V

4.0kHz

4.50V

5.00V

DESCRIPTION OF PIN FUNCTIONS

Inputs

SETV

CLCR_IN

CAP

Defines the AGND_OUT voltage. Normally set by potential divider

Active high to enable clock

Capacitor to VSS sets clock frequency

Outputs

AGND_OUT

SELECT

CLK_OUT

NOT CLK_OUT

DATA_OUT

RESET_OUT

Analog Ground. Able to source and sink current

Active high when CLCR_IN is logic high. Enables memory device

Fed to EEPROM clock input

Fed to TRAC clock input

CLK_OUT divided by four. Fed to serial output memory device

Reset for TRAC Support Circuit and TRAC devices

General notes for the TRAC Support Circuit

An on-chip oscillator produces the output CLK_OUT and NOT CLK_OUT. CLCR_IN must be logic high

(VDD) to activate CLK_OUT and NOT CLK_OUT

The CLK_OUT output frequency is divided by four to give the DATA_OUT output. Therefore CLCR_IN

must be logic high (VDD) to activate DATA_OUT

For AGND_OUT stability under load, a 100nF capacitor is required between AGND_OUT and VSS

3

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