MC33972 Motorola, MC33972 Datasheet
MC33972
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MC33972 Summary of contents
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... V DD SP7 WAKE SI SCLK SG0 SG1 CS SO INT AMUX SG12 SG13 GND Go to: www.freescale.com Document order number: MC33972 Rev 3.0, 12/2004 33972 MULTIPLE SWITCH DETECTION INTERFACE WITH SUPPRESSED WAKE-UP DWB SUFFIX EW (Pb-FREE) SUFFIX CASE 1324-02 32-TERMINAL SOICW ORDERING INFORMATION Temperature Device Range (T ) ...
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... To + 4.0 V – SPI Ref Comparator SG13 To + 4.0 V – SPI Ref Comparator Figure 1. 33972 Simplified Internal Block Diagram MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 5.0 V PWR DD POR Bandgap Sleep PWR 5.0 V Oscillator V and PWR Clock Control 5 ...
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... V Battery Input PWR 17 Wake-Up WAKE 29 Interrupt INT 30 AMUX Analog Multiplex Output 31 V Voltage Drain Supply SPI Slave Out MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, GND SCLK SP0 5 28 SP1 6 27 ...
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... Freescale Semiconductor, Inc. Rating (Note 7) = 100 pF, R ZAP = 200 pF, R ZAP ° C junction temperature with no heat sink used. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Symbol Value – -0.3 to 7.0 – -0.3 to 7.0 – -0 – ...
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... Thermal shutdown pullup and pulldown current sources only. 2.0 mA current source/sink and all other functions remain active. 10. This parameter is guaranteed by design but is not production tested. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, ≤ 5.25 V, 8.0 V ≤ V ≤ -40°C ≤ T ...
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... C IN – V INT(HIGH) V INT(LOW) I WAKE (PU) V WAKE(HIGH) V WAKE V WAKE , and SCLK. CS MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com ≤ 125°C, unless otherwise noted 25°C. PWR A Min Typ Max 0.8 – 2.2 I SI, -10 – ...
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... Time required for output states data to be terminated at SO terminal. 18. Time required to obtain valid data out from SO following the rise of SCLK with 200 pF load. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, ≤ 5.25 V, 8.0 V ≤ V ≤ -40°C ≤ T ...
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... Switch closed “1” Switch Switch Switch Status Status Status Command Command Command Figure 4. Normal Mode Interrupt Operation MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com t LAG t t VALID SO(DIS) LSB out Wake-Up From Closed Switch Sleep Mode ...
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... When the logic HIGH state, any signal on the SCLK CS and SI terminals will be ignored and the SO terminal is tri-state. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, INTRODUCTION switch inputs may be read as analog inputs through the analog multiplexer (AMUX). Other features include a programmable ...
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... Voltages greater than the V supply voltage will source current through the SG inputs PWR to the V PWR 40 V must be clamped by an external device. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Table 1 through Table 6 in the ...
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... Multiple ICs may be SPI-configured in parallel or serial. Figures 6 and 7 show the configurations. When using the serial configuration, 48-clock cycles are required to transfer data in/ out of the ICs. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, MCU INTERFACE DESCRIPTION MC68HCXX Microcontroller Figure 5 illustrates ...
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... Table 1. Settings Command Not used MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com to the IC PWR WAKE (with V = 5.0 V and INT WAKE DD CS (with applied can the registers of the DD ...
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... MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA up/interrupt bit to logic [1] will enable the specific input to generate an interrupt with switch change of state and will enable INT the specific input as wake-up. The MCU may change or update the Wake-Up/Interrupt Register via software at any time in Normal mode ...
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... Normal mode. Table 5. Tri-State Command sg13 sg12 sg11 sg10 sg9 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com (Table 4). Command Bits sp7 sp6 ...
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... MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA and 1,0 selects 16 mA. Setting bit 6 and bit 5 to 1,1 in the 6). Internal to the IC is Analog Select Register is not allowed and will place the input as an analog input with high impedance. Analog currents set by the analog command are pullup currents for all SGn and SPn inputs command does not allow pulldown currents on the SPn inputs ...
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... paragraph entitled datasheet. Table 9. Reset Command MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Command Bits Power-ON Reset (POR) on page 12 of this ...
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... SP6 SP5 Always Send flg flg MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, data for input voltages greater or less than the threshold level. Open switches are always indicated with a logic [0], closed switches are indicated with logic [1]. ...
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... No interrupt wake-up MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com WAKE INT (with V = 5.0 V and WAKE DD (with supply may be removed from the device during ...
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... MCU to wake from Sleep state. the current consumed during Sleep mode. During the 125 µs, the device is fully active and switch states are read. The MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, quiescent current is calculated by integrating the normal running current over scan period plus approximately 60 µ ...
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... Timer Port pullup, or analog with 16 mA pullup. how the 33972 may be used to provide a ratiometric reading of variable resistive input. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Monitor, page 19.) supply for switch-to-ground ...
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... A/D conversion. By placing a 2.0 kΩ, 0.1% resistor in the end-of-line test equipment and assuming a perfect 2.0 mA current source from the 33972, a calculated A/D MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, conversion may be obtained. Using the equation yields the ...
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... MCU and the 33972 and their specific requirements for functionality. MCU V DD 5 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 1.5 kΩ SGn SGn DS Table 16 Table 16 ...
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... MCU, the sleep sequence may be initiated. All parameters for Sleep mode should be updated prior to sending the sleep command. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, The 33972 IC has an internal 5.0 V supply from V terminal. A POR circuit monitors the internal 5.0 V supply. In the event of transients on the V occur ...
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... Figure 13. Power Supply Active in Sleep Mode V PWR Power Supply V PWR Enable PWR INT SI SO Figure 14. Power Supply Shutdown in Sleep Mode MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com MC68HCXX Microprocessor CS INT MOSI MISO SCLK AN0 ...
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... Freescale Semiconductor, Inc. 10.3 7.6 7 PIN 5. TIPS 0 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, PACKAGE DIMENSIONS DWB SUFFIX EW (Pb-FREE) SUFFIX 32-LEAD SOIC WIDE BODY PLASTIC PACKAGE CASE 1324-02 ISSUE 2.65 2. 30X 0. ...
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... Freescale Semiconductor, Inc. NOTES MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com ...
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... Freescale Semiconductor, Inc. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, NOTES Go to: www.freescale.com 33972 27 ...
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... Technical Information Center 2 Dai King Street Tai Po Industrial Estate Tai Po, N.T., Hong Kong +800 2666 8080 support.asia@freescale.com For Literature Requests Only: Freescale Semiconductor Literature Distribution Center P.O. Box 5405 Denver, Colorado 80217 1-800-441-2447 or 303-675-2140 Fax: 303-675-2150 LDCForFreescaleSemiconductor@hibbertgroup.com For More Information On This Product, Go to: www.freescale.com MC33972 ...