MIC2564A Micrel MIC2564A Dual Serial PCMCIA/CardBus Power Controller General Description Features The MIC2564A is dual-slot PC Card PCMCIA (Personal Computer Memory Card International Association) and CardBus power controller. It is a sophisticated power switching matrix that controls VCC and VPP voltages to two PC Card slots. The MIC2564A is used in conjunction with a serial-data output logic controller using the standard three-wire serial control data format. • • • • • • • • • • • • • When connected to 3.3V, 5V, and 12V system power supplies, the MIC2564A can switch its VCC outputs between 0V, 3.3V, 5.0V, and high-impedance states and VPP outputs between 0V, 3.3V, 5V, 12V, and high-impedance states. The VCC outputs will supply a minimum of 1A current to the socket and the VPP outputs will supply a minimum of 120mA to the socket. Voltage rise and fall times are well controlled. The MIC2564A also features an efficient standby (sleep) mode at 0.3mA typical quiescent current. Standard 3-wire serial control data input Controls two card slots from one surface mount device High-efficiency, low-resistance switches 12V supply optional (not required by MIC2564A) Current limit and overtemperature shutdown Ultra-low 1mA-typical standby power consumption Cross-conduction lockout (no switching transients) Break-before-make switching 1A minimum VCC output per slot Independent VCC and VPP voltage output (MIC2564A-1) 120mA minimum VPP output current per slot Lead-free 24-pin surface-mount TSSOP package UL recognized, file #179633 Applications • • • • • • 12V and 5V supplies are not required for MIC2564A operation making it possible to omit one or both supplies when they are not needed by the system. An internal charge pump supplies the internal bias voltages required for high-performance switching. PC Card and CardBus power control Zoom Video port power control Wireless communications Bar code data collection systems Docking stations (portable and desktop) Power supply management The MIC2564A is protected by overtemperature shutdown, and protects itself and the system with current limiting and crossconduction lockout. The MIC2564A is available in 24-pin SSOP, 24-pin TSSOP, and an environmentally friendly (lead-free) 24-pin TSSOP. All support documentation can be found on Micrel’s web site at www.micrel.com. Typical Application Slot A Address and data lines between logic controller and PCMCIA cards not shown. System Power Supply (OPTIONAL) (OPTIONAL) 12V 5V 3.3V VPP1 VPP2 PCMCIA Card A VCC System Reset VPP IN (OPTIONAL) Dual-Slot Logic Controller PCMCIA, CardBus, or Zoom Video VCC3 IN VCC5 IN (OPTIONAL) Slot B A V PP OUT RST# MIC2564A Power Serial Controller Control Bus GND A V CC OUT B V PP OUT B V CC OUT VPP1 VPP2 PCMCIA Card B VCC Motherboard UL Recognized Component PCMCIA Card Power Management Application Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com March 2004 1 M0250-031104 MIC2564A Micrel Ordering Information Part Number Temperature Range Package Lead-Finish MIC2564A-0BSM –40∞C to +85∞C 24-pin SSOP Standard MIC2564A-1BSM* –40∞C to +85∞C 24-pin SSOP Standard MIC2564A-0BTS –40∞C to +85∞C 24-pin TSSOP Standard MIC2564A-1BTS* –40∞C to +85∞C 24-pin TSSOP Standard MIC2564A-0YTS –40∞C to +85∞C 24-pin TSSOP Lead-free MIC2564A-1YTS* –40∞C to +85∞C 24-pin TSSOP Lead-free * -1 option: independent VPP OUT and VCC OUT programming Pin Configuration VCC5 IN 1 24 A VCC OUT A VCC OUT 2 23 VCC3 IN VCC5 IN 3 22 A VCC OUT A FLAG 4 21 GND SDA 5 20 A VPP OUT SCL 6 19 VPP IN RST# 7 18 VPP IN SLA 8 17 B VPP OUT B FLAG 9 16 GND VCC5 IN 10 15 B VCC OUT B VCC OUT 11 14 VCC3 IN VCC5 IN 12 13 B VCC OUT 24-lead SSOP (SM) 24-lead TSSOP (TS) Pin Description Pin Number Pin Name 1, 3, 10, 12 VCC5 IN 2, 22, 24 A VCC OUT 4 A FLAG 5 SDA Serial Data (Input). 6 SCL Serial Clock (Input). 7 RST# 8 SLA 9 B FLAG 11, 13, 15 B VCC OUT 14, 23 VCC3 IN 16, 21 GND 17 B VPP OUT 18, 19 VPP IN 20 A VPP OUT M0250-031104 Pin Function 5V Supply Input: Optional system power supply connection. Required only for 5V VCC and VPP output voltage. Slot A VCC Output: Pins 2, 22 and 24 must be externally connected together. Channel A VCC and VPP Output Monitor (Output): Low on error condition. System Reset (Input): Active low signal deactivates the MIC2564A, clearing the serial registers and forcing the four power outputs to 0V (GND). Serial Data Latch (Input). Channel B VCC and VPP Output Monitor (Output): Low on error condition. Slot B VCC Output: Pins 11, 13 and 15 must be externally connected together. 3.3V Supply Input: Required system power supply connection. Powers 3.3V VCC and VPP outputs and all internal circuitry. Ground. Slot B VPP Output. 12V Supply Input: Optional system power supply connection. Required only for 12V VPP output voltage. Slot A VPP Output. 2 March 2004 MIC2564A Micrel Absolute Maximum Ratings(1) Operating Ratings(2) VPP IN ...................................................................... +13.6V VCC3 IN ....................................................................... +6.0V VCC5 IN ....................................................................... +6.0V VSCL, VSDA, VSLA, VRST# .................................... –0.3V to +6.0V VA FLAG, VB FLAG ....................................................... +6.0V A or B VPP OUT ....................... >120mA, Internally Limited A or B VCC OUT .............................. >1A, Internally Limited Power Dissipation (PD) at TA £ 25∞C ....... Internally Limited Storage Temperature ............................... –65∞C to +150∞C Lead Temperature (5 sec.) ...................................... +260∞C ESD Rating(3) VPP IN ............................................................ 0V to +13.2V VCC3 IN ........................................................ +3.0V to +5.5V VCC5 IN ............................................................. 0V to +5.5V VSCL, VSDA, VSLA, VRST# ................................. 0V to +5.5V A or B VPP OUT ................................................ 0 to 120mA A or B VCC OUT ....................................................... 0 to 1A Clock Frequency ................................................. 0 to 2MHz Ambient Temperature (TA) ......................... –40∞C to +85∞C Junction Temperature (TJ) ...................................... +125∞C Package Thermal Resistance SSOP (qJA) ...................................................... 90∞C/W TSSOP (qJA) .................................................... 83∞C/W Electrical Characteristics(4) VCC3 IN = 3.3V, VCC5 IN = 5.0V, VPP IN = 12V; TA = 25∞C, bold indicates –40∞C £ TA £ +85∞C; unless noted. Symbol Parameter Conditions Min Typ Max Units IPP OUT Hi-Z High-Impedance Output Leakage Current Shutdown mode VPP OUT = 0V 1 10 mA IPPSC Short Circuit Current Limit VPP OUT = 0V, normal mode(5) 260 400 mA RO Switch Resistance VPP OUT = 5V selected, IPP OUT = –100mA (sourcing) 1.6 5 W VPP OUT = 3.3V selected, IPP OUT = –100mA (sourcing) 1.3 5 W VPP OUT = 12V selected, VPP IN = 12V, IPP OUT = –100 mA (sourcing) 1.3 2.3 W 2000 5000 W VPP OUT = Hi-Z to 10% of 3.3V, RL = 100W 1 100 ms t2 VPP OUT = Hi-Z to 10% of 5V, RL = 100W 1 100 ms t3 VPP OUT = Hi-Z to 10% of 12, RL = 100W 50 250 ms VPP Output 120 VPP OUT = 0V [ground] selected, IPP OUT = 50mA (sinking) VPP Switching Time (See Figure 3) t1 Output Turn-On Delay(6) VPP OUT = 10% to 90% of 3.3, RL = 100W 10 100 500 ms VPP OUT = 10% to 90% of 5, RL = 100W 10 250 1000 ms VPP OUT = 10% to 90% of 12, RL = 100W 10 100 500 ms VPP OUT = 3.3V to 90% of 12V, RL = 100W 10 100 500 ms t8 VPP OUT = 5V to 90% of 12, RL = 100W 10 100 500 ms t9 VPP OUT = 12V to 90% of 3.3, RL = 100W 10 100 500 ms t10 VPP OUT = 12V to 90% of 5, RL = 100W 10 250 1000 ms VPP OUT = 90% to 10% of 3.3, RL = 100W 1 500 ms t12 VPP OUT = 90% to 10% of 5, RL = 100W 1 500 ms t13 VPP OUT = 90% to 10% of 12, RL = 100W 1 500 ms t4 Output Rise Time t5 t6 t7 t11 Output Transition Time(6) Output Turn-Off Fall Time Notes: 1. Exceeding the absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its operating rating. 3. Devices are ESD sensitive. Handling precautions recommended. 4. Specification for packaged product only. 5. Output enabled into short circuit. 6. Measurement is from the 50% point of the SLA rising edge. March 2004 3 M0250-031104 MIC2564A Micrel Electrical Characteristics(7) Symbol Parameter Conditions t14 Output Turn-Off Delay Time(8, 11) Min Typ Max Units VPP OUT = 3.3V to Hi-Z, RL = 100W 1 50 ms t15 VPP OUT = 5V to Hi-Z, RL = 100W 1 50 ms t16 VPP OUT = 12V to Hi-Z, RL = 100W 1 50 ms Shutdown mode, VCC OUT = 0V 1 20 mA 2.0 3.0 A VCC Output ICC OUT Hi-Z High-Impedance Output Leakage Current ICCSC Short Circuit Current Limit VCC OUT = 0, normal mode, VCC3 or VCC5 switches(9) 1.0 RO Switch Resistance VCC OUT = 3.3V selected, ICC OUT = –1A (sourcing) 120 150 mW VCC OUT = 5V selected, ICC OUT = –1A (sourcing) 85 120 mW VCC OUT = 0V [ground] selected, ICC OUT = 0.1mA (sinking) 2000 3900 W VCC OUT = 0V to 10% of 3.3, RL = 10W 250 500 ms VCC OUT = 0V to 10% of 5.0, RL = 10W 500 1000 ms VCC Switching Time (See Figure 4) t17 Output Turn-On Delay Time(8) t18 t19 Output Rise Time t20 t21 Output Fall Time t22 t23 Output Turn-Off Delay(8, 10) t24 VCC OUT = 10% to 90% of 3.3V, RL = 10W 750 1200 5000 ms VCC OUT = 10% to 90% of 5, RL = 10W 1000 2200 5000 ms VCC OUT = 90% to 10% of 3.3, RL = 10W 100 550 1000 ms VCC OUT = 90% to 10% of 5.0, RL = 10W 100 400 2000 ms VCC OUT = 3.3V to 90% of 3.3V, RL = 10W 400 2000 ms VCC OUT = 5V to 90% of 5V, RL = 10W 400 2000 ms VCC OUT = 5V or 3.3V, ICC OUT = 0 120 200 mA VCC OUT = Hi-Z (sleep mode) 5 10 mA VCC OUT = 5V or 3.3V, ICC OUT = 0 25 50 mA VCC OUT = Hi-Z (sleep mode) 0.2 10 mA VPP OUT = 0V, 3.3V, 5V, or Hi-Z; IPP OUT = 0 1 10 mA VPP OUT = VPP IN 4 50 mA 3.3 5.5 V Power Supply ICC3 ICC5 IPP IN VCC3 IN Supply Current (3.3V)(11) VCC5 IN Supply Current VPP IN Supply Current (5V)(12) (12V)(12) VCC3 Operating Input Voltage (3.3V) Note 11 3.0 VCC5 Operating Input Voltage (5V) Note 12 5.0 5.5 V VPP Operating Input Voltage (12V) Notes 12, 13 12 13.2 V Notes: 7. Specification for packaged product only. 8. Measurement is from the 50% point of the SLA rising edge. 9. Output enabled into short circuit. 10. Measurement is from the Hi-Z- or 0V-state command to the beginning of the slope. Measurement does not apply when device is in current limit or thermal shutdown. 11. VCC3 IN powers all internal logic, bias, and drive circuitry, and is required for operation. 12. VPP and VCC5 IN are not required for operation. 13. VPP IN must be either high-impedance or greater than or approximately equal to the highest voltage VCC in the system. For example, if both 3.3V and 5V are connected to the MIC2564A, VPP IN must be either 5V, 12V, or high-impedance. M0250-031104 4 March 2004 MIC2564A Symbol Micrel Parameter Conditions Min Typ Max Units Thermal Shutdown TSD Thermal Shutdown Temperature ∞C 145 Serial Interface DC Specifications VIH Input Voltage: SDA, SCL, SLA pins 0.7VCC3IN 5.5 V VIL Input Voltage: SDA, SCL, SLA pins –0.3 0.3VCC3IN V IIN Input Current 0V < VIN < 5.5V 1 mA Flag Leakage Current VFLG = 5V 1 mA –1 0.2 Flag IFLG Serial Interface Timing Requirements (See Figures 1 and tHD:DAT SDA Hold Time tSU:DAT SDA Setup Time tSU:SLA Latch Setup Time tSU:RST# Reset to Data Setup Time tW Minimum Pulse Width tR tF 2)(14) 75 ns 75 ns 50 ns RST# before data 50 ns Clock (tW:CLK) 50 ns Latch (tW:SLA) 100 ns Reset (tW:RST) 50 ns Data (tW:DA) 50 ns f = 32kHz(15) 0 100 ns 32kHz(15) 0 100 ns Data before clock SCL Rise Time SCL Fall Time f= Notes: 14. Guaranteed by design not production tested. 15. Guaranteed by characterization but not production tested. Serial Control Timing Diagram tW:DAT RST# tSU:RST# D8 D7 D6 D5 D4 D3 D2 D1 D0 SDA tSU:SLA tW:CLK tSU:DAT tW:SLA tHD:DAT SLA SCL Figure 1. Serial Control Timing Diagram The MIC2564A uses a three-wire serial interface to control VCC and VPP outputs for both sections A and B. The three control lines have thresholds compatible with both 3.3V and 5V logic families. Data (SDA) is clocked in on the rising clock edge. The clock signal may be continuous or it may halt after all data is clocked in. tr SCL tf 90% 90% 10% 10% Figure 2. SCL Rise and Fall Times March 2004 5 M0250-031104 MIC2564A Micrel Output Timing Diagrams A B C D E F G H VPP Enable 0 VPP to 3.3V VPP to 12V VPP to 3.3V VPP OFF VPP to 5V VPP to 12V VPP to 5V K J VPP OFF VPP to 12V VPP OFF t13 t7 t9 t10 t8 t6 t16 12V VPP OUT t2 t1 t4 t11 t5 t15 t14 t3 t12 5V 3.3V 0 /FLAG Figure 3. VPP Timing Diagram VPP Enable is shown generically. RL = 100W. CL = negligible. Refer to the serial control timing diagrams for details. At time “A”, VPP = 3.3V is selected, “B”, VPP is set to 12V, “C”, VPP = 3.3V (from 12V), “D”, VPP is disabled, “E”, VPP is programmed to 5V, “F”, VPP is set to 12V, “G”, VPP is programmed to 5V, “H”, VPP is disabled, “J”, VPP is set to 12V, “K”, VPP is again disabled. A VCC Enable 0 B C D VCC to 3.3V VCC OFF VCC to 5V t17 t23 t18 t19 t21 t20 VCC OFF t24 t22 5V VCC 3.3V OUT 0 /FLAG 0 Figure 4. VCC Timing Diagram VCC Enable is shown generically. RL = 10W. Refer to the serial control timing diagrams for specific control logic input. At time “A”, VCC is programmed to 3.3V, “B”, VCC is disabled, “C”, VCC is programmed to 5V, “D”, VCC is disabled. M0250-031104 6 March 2004 March 2004 7 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 X = don’t care, * clamped to ground, 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 † 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 illegal state per “The PC Card Specification.” 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 0 1 1 0 0 1 1 0 0 1 0 X 1 0 X D3 A VCC5 0 X D4 B VPP_PGM 0 X D5 B VPP_VCC 1 X 0 D6 B VCC3 1 D7 B VCC5 D8 SHDN MIC2564A-0 Logic Table 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 X D2 A VCC3 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 X D1 A VPP_VCC 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 X D0 A VPP_PGM 0V* Hi-Z 0V* 0V* 0V*† 0V* 0V* 12V† 3.3V 3.3V 3.3V 3.3V 5V 5V 5V 5V 0V* 0V* Hi-Z 3.3V 12V 0V* Hi-Z 5V 12V 0V* Hi-Z 0V* 0V* 0V*† 0V* Hi-Z 12V† Hi-Z 0V* Hi-Z 0V* 0V* 0V† 12V† 0V* 0V* 5V 5V 5V 5V 3.3V 3.3V 3.3V 3.3V 0V* 0V* Hi-Z 5V 12V 0V* Hi-Z 3.3V 12V 0V* Hi-Z 0V* 0V* 0V*† 0V* Hi-Z 12V† Hi-Z B VPP OUT B VCC OUT A VPP OUT A VCC OUT MIC2564A Micrel M0250-031104 M0250-031104 8 0 † 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 X = don’t care, * clamped to ground, 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 0 0 1 1 0 0 1 0 1 1 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 illegal state per “The PC Card Specification.” 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 1 0 0 1 0 1 1 0 X 1 X D3 A VCC5 0 X D4 B VPP_PGM 1 X D5 B VPP_VCC 0 X 0 D6 B VCC3 1 D7 B VCC5 D8 SHDN MIC2564A-1 Logic Table 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 X D2 A VCC3 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 X D1 A VPP_VCC 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 X D0 A VPP_PGM Hi-Z 0V* 0V* 0V* 0V* 0V*† 0V* 3.3V 3.3V 3.3V 3.3V 5V 5V 5V 5V 0V* 12V† 5V 3.3V 12V 0V* 3.3V 5V 12V 0V* Hi-Z 0V* 0V*† 12V† 0V* 0V* Hi-Z 0V* Hi-Z Hi-Z 0V* 0V* 0V* 0V* 0V† 0V* 5V 5V 5V 5V 3.3V 3.3V 3.3V 3.3V 0V* 12V† 3.3V 5V 12V 0V* 5V 3.3V 12V 0V* Hi-Z 0V* 0V*† 0V* 0V* 12V† Hi-Z 0V* Hi-Z B VPP OUT B VCC OUT A VPP OUT A VCC OUT MIC2564A Micrel March 2004 MIC2564A Micrel Functional Diagram VCC3 IN 3.3V VCC5 IN 5V (optional) VPP IN 12V (optional) Gate-Drive Charge Pump SDA SCL A VPP OUT RST# SLA B VPP OUT Control Logic A VCC OUT A FLAG B VCC OUT B FLAG Current Limit Thermal Shutdown MIC2564 GND March 2004 9 M0250-031104 MIC2564A Micrel compatible with, and requires, a different VCC level, the logic controller commands the power controller to make this change by disabling VCC, waiting at least 100ms, and then reenabling the other VCC voltage. If no card is inserted, or the system is in sleep mode, the logic controller commands the MIC2564A to shut down VCC. This also places the switch into a shutdown (sleep) mode, where current consumption drops to nearly zero, with only tiny CMOS leakage currents flowing. Internal device control logic, MOSFET drive and bias voltage is powered from VCC3 IN. The high voltage bias is generated by an internal charge pump multiplier. Input logic threshold voltages are compatible with common PC Card logic controllers using either 3.3V or 5V supplies. PC Card Voltage Regulation The MIC2564A has been designed to meet or exceed PC Card voltage regulation specifications. The on-resistance of the FET switches will meet regulation requirements at 600mA and 1A respectively for VCC = 5V ±3% and 3.3V ±3%. Flash Memory Implementation When programming flash memory (standard +12V flash memories), the PC Card slot logic controller enables VPP on the MIC2564A, which connects VPP IN (nominally +12V) to VPP OUT. The low on-resistance of the MIC2564A switch allows using a small bypass capacitor on the VPP OUT pins, with the main filtering performed by a large filter capacitor on VPP IN. (Usually the main power supply filter capacitor is sufficient.) Using a small-value capacitor such as 0.1mF on the output causes little or no timing delays. The VPP OUT transition from VCC to 12.0V typically takes 200ms. After programming is completed, the logic controller signals to the MIC2564A, which then reduces VPP OUT to the VCC level. Break-before-make switching action and controlled rise times reduce switching transients and lower current spikes through the switch. Output Current and Protection The MIC2564A meets or exceeds all PCMCIA specifications. MIC2564A output switches are capable of passing the maximum current needed by any PC Card. For system and card protection, output currents are internally limited. For full system protection, long term (longer than a few milliseconds) output short circuits invoke overtemperature shutdown, protecting the MIC2564A, the system power supplies, the card socket pins, board traces, and the PC Card. Individual internal status registers for each slot indicate when power problems exist. Control Bus Interface Overview The MIC2564A power controller communicates with a logic controller (host adapter) via a 3-wire serial interface. A fourth control line attaches to the system reset line (RST#) and places all MIC2564A switches in the high-impedance (off) state. The reset function is active low. Applications Information PC Card power control for two sockets is easily accomplished using the MIC2564A PC Card/CardBus power controller. Control commands from a three-wire (plus Reset) serial bus determine VCC and VPP output voltages and select standby or operate mode. VCC outputs of 3.3V and 5V at the maximum allowable PC Card current are supported. The VCC outputs also support GND (0V) and high-impedance states. The VPP outputs support VPP (12V), VCC voltages (3.3V or 5V), GND (0V), or high-impedance. When the VCC = Hi-Z (high-impedance) condition is selected, the device switches into sleep mode and draws only leakage current. Full protection during hot switching is provided which prevents feedback from the VCC output (for example, from the 5V supply into the 3.3V supply) by locking out the low-voltage switch until the initial switch’s gate voltage drops below 0.7V. MIC2564A internal logic and MOSFET drive circuitry is powered from the VCC3 input and internal charge-pump voltage multipliers. Switching speeds are carefully controlled to prevent damage to sensitive loads and meet all PC Card specification timing requirements, including those for the CardBus option. Supply Bypassing The MIC2564A is a switch and has no stability problems; however, supply bypass capacitors are recommended to reduce inductive transients and improve output ripple. As all internal device logic and comparison functions are powered from the VCC3 input, the power supply quality on this line is the most important. Micrel recommends placing 1mF surfacemount ceramic (low ESR) capacitors from VCC3 IN and VCC5 IN pins to ground and two 0.1mF surface-mount ceramic capacitors, one from each VPP IN pin, to ground. Also, the VCC OUT and VPP OUT pins may use 0.01mF to 0.1mF capacitors for noise reduction and to reduce the chance of ESD (electrostatic discharge) damage. Power Status Feedback (Flags) Two flag outputs monitor the VCC and VPP output voltages on both slot A and B, falling low when the voltage is not proper. Use of these open-drain flag outputs is optional; if they are used, a pull-up resistor to either the 3.3V or 5V supply is required. Unused flag outputs may be left open. PC Card Slot Implementation The MIC2564A is designed for full compatibility with the PCMCIA (Personal Computer Memory Card International Association) PC Card Specification including the CardBus and Zoom Video (ZV) options. When a PC card is initially inserted, it should receive VCC (3.3V ± 0.3V or 5.0V ±5%). The initial voltage is determined by a combination of mechanical socket keys and voltage sense pins. The card sends a handshaking data stream to the logic controller, which then determines if this card requires VPP and if the card is designed for dual VCC. If the card is M0250-031104 10 March 2004 MIC2564A Micrel Slot A Controller Power (3.3V or 5V) 2 Generic 330k PCMCIA/CardBus Host Adapter +3.3V +5V 1.0µF 1.0µF ceramic 14, 23 4 A PGOOD 9 B PGOOD 5 SDATA 6 SCLK 8 SLATCH 7 RST# ceramic VCC5 IN VCC VPP IN A V PP OUT MIC2564 Power Controller SDA SCL A V CC OUT B VPP OUT SLA B VCC OUT RST# VPP2 18, 19 A FLG B FLG VPP1 0.1µF 0.1µF ceramic 1, 3, 10 VCC3 IN VCC +12V 20 2, 22, 24 0.01µF Slot B 0.01µF 17 11, 13, 15 VPP1 0.01µF VPP2 0.01µF GND 16, 21 VCC System Reset Figure 5. Generic “3-Wire” Serial Control Interface Slot A +3.3V +5V 1.0µF 1.0µF ceramic 14, 23 Cirrus Logic CL-PD6832/33 SDATA SCLK SLATCH RST# VCC3 IN 131 5 132 6 130 8 207 7 +12V 1, 3, 10 VCC5 IN SLA RST# VPP2 18, 19 A V CC OUT B VPP OUT GND ceramic VCC VPP IN A V PP OUT MIC2564 Power Controller VPP1 0.1µF ceramic SDA SCL 0.1µF B VCC OUT 20 2, 22, 24 17 11, 13, 15 0.01µF Slot B 0.01µF 0.01µF VPP1 VPP2 0.01µF 16, 21 VCC System Reset Figure 6. Cirrus Logic CL-PD6832 and CL-PD6833 Interface March 2004 11 M0250-031104 MIC2564A Micrel Slot A +3.3V +5V 1.0µF 1.0µF ceramic O2 Micro OZ6832 OZ6833 CPWRDATA CPWRCLK CPWRLATC RST# 14, 23 5 132 6 130 8 207 7 0.1µF ceramic VCC VPP IN A V PP OUT MIC2564 Power Controller SLA A V CC OUT B VPP OUT RST# VPP2 18, 19 VCC5 IN SDA SCL VPP1 0.1µF ceramic 1, 3, 10 VCC3 IN 131 +12V B VCC OUT GND 20 2, 22, 24 0.01µF Slot B 0.01µF 17 0.01µF 11, 13, 15 VPP1 VPP2 0.01µF 16, 21 VCC System Reset Figure 7. O2 Micro OZ6833 and OZ6933 Slot A +3.3V +5V 1.0µF 1.0µF ceramic O2 Micro OZ6836 OZ6860 SDATA SCLK SLATCH RST# 14, 23 5 118 6 115 8 250 7 VCC5 IN SLA RST# ceramic 18, 19 A V CC OUT B VPP OUT GND VPP2 VCC VPP IN A V PP OUT MIC2564 Power Controller VPP1 0.1µF ceramic SDA SCL 0.1µF 1, 3, 10 VCC3 IN 116 +12V B VCC OUT 20 2, 22, 24 17 11, 13, 15 0.01µF Slot B 0.01µF 0.01µF VPP1 VPP2 0.01µF 16, 21 VCC System Reset Figure 8. O2 Micro OZ6860 M0250-031104 12 March 2004 MIC2564A Micrel Package Information 5.40 (0.213) 5.20 (0.205) 7.90 (0.311) 7.65 (0.301) DIMENSIONS: MM (INCH) 0.875 (0.034) REF 8.33 (0.328) 8.07 (0.318) 2.00 (0.079) 1.73 (0.068) 10° 4° 0.38 (0.015) 0.25 (0.010) 0.21 (0.008) 0.05 (0.002) 0.65 (0.0260) BSC COPLANARITY: 0.10 (0.004) MAX 0° –8° 0.22 (0.009) 0.13 (0.005) 1.25 (0.049) REF 0.95 (0.037) 0.55 (0.022) 24-pin SSOP (SM) 4.50 (0.177) 6.4 BSC (0.252) 4.30 (0.169) 0.30 (0.012) 0.19 (0.007) 7.90 (0.311) 7.70 (0.303) 0.65 BSC (0.026) DIMENSIONS: MM (INCH) 1.10 MAX (0.043) 0.20 (0.008) 0.09 (0.003) 8° 0° 0.15 (0.006) 0.05 (0.002) 1.00 (0.039) REF 0.70 (0.028) 0.50 (0.020) 24-pin TSSOP (TS) March 2004 13 M0250-031104 MIC2564A Micrel MICREL, INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 TEL + 1 (408) 944-0800 FAX + 1 (408) 944-0970 WEB USA http://www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. © 2003 Micrel, Incorporated. M0250-031104 14 March 2004