MIC2555 Micrel Semiconductor, MIC2555 Datasheet
MIC2555
Available stocks
Related parts for MIC2555
MIC2555 Summary of contents
Page 1
... A-device. Logic input levels spanning 1.6V to 4.5V ensure compatibility with current and future generations of process technology. The MIC2555 is offered in a space saving 4mm x 4mm 24- pin MLF™ package. Data documentation can be found on Micrel’s web site at www ...
Page 2
... OE_INT/ RCV MIC2555 USB SIE DAT_VP_RX Controller SE0_VM_TX SCL SDA CAP+ CAP- GND 0.22µF MIC2555 Typical Application Circuit RCV SE0_VM_TX DAT_VP_RX OE_INT/ INT/ GPIO_0_RX 4mm × 4mm 24-pin MLF (ML) 2 Junction Temp. Range Package –40°C to +85°C 24-pin MLF™ ...
Page 3
... VBUS. CAP- Negative lead for charge pump capacitor. GND_A Analog ground. Isolated Charge Pump ground. Logic supply voltage. Used to set logic levels between MIC2555 and VDD_LGC System Controller / ASIC controller. This pin is a digital input and ...
Page 4
... Modem June 2005 1 MIC2555 SIE SE0_VM_TX DAT_VP_RX D+ 2:1 D– UART Figure 1. Controller with Multiplexed Serial Interfaces 1 MIC2555 SIE SE0_VM_TX DAT_VP_RX D+ D– GPIO_0_RX UART GPIO_1_TX Figure 2. Controller with Parallel Serial Interfaces 4 MIC2555 UART TX RX UART TX RX M9999-060805 (408) 955-1690 ...
Page 5
... 10µF VBUS Min Typ 3.0 1.6 < 3.6V 3.3 2.8 13 140 VBUS 2 0mA VBUS 2.5 = 0mA 6.5 = 0mA 80 7 5.0 4 1300 281 675 2300 MIC2555 ° ° +85 C ° C/W Max Units V 4 BAT V 3.6 µA 20 µA 250 mA 5 µA 100 µ 5.25 mA Ω ...
Page 6
... ADR0, OE_INT/, SE0_VM_TX, DAT_VP_RX, RCV, INT/, RESET/ & GPIO Applies to USB and UART modes. 1.6V ≤ V ≤ 4.5V DD_LGC I = 100µ 100µ 5mA 3.0K SDA_PU I = 10mA 3. DD_PU OH_GPIO 6 MIC2555 Min Typ Max Units 63 kΩ 40 100 4.5 V 4.4 4.6 1.4 V 0.8 2.0 0.4 V 0.2 0.8 2.55 V 2.45 2.65 0.42 V 0.35 0.55 70 ...
Page 7
... OE_INT Measured at D+, D- pins, with respect to GND See Note 3.6V BAT V = 3.0V BAT T = 25°C AMB C = 50pF to 125pF L See Note LOW to HIGH HIGH to LOW See Note 4 7 MIC2555 Min Typ Max 0.2 0.8 2.5 1.5 0.8 2.0 200 0.1 0.3 3.3 2.8 3 Active 2.25 1.425 3.09 Idle 1.24 0.900 1.575 14 ...
Page 8
... L See Note LOW to HIGH HIGH to LOW See Note 4 LOW to HIGH HIGH to LOW See Note 4 D+, D-, ID, and VBUS to GND Human Body Model All pins Human Body Model 8 MIC2555 Min Typ Max Units 245 300 ns 75 ...
Page 9
... TRM 5V Regulator V DD_LGC Comparator INT/ SDA ID Detector Serial Controller SCL Interrupt Detector ADR_0 TXD MUX RXD Diff TX Pull-Up/Down RCV Resistors Diff MIC2555 Block Diagram 9 C+ C++ V BUS V BUS ID Pull-Up/Down Resistors GPIO_2 D+ D- GND_A SE GND_D MIC2555 M9999-060805 (408) 955-1690 ...
Page 10
... Point-to-point UART and 2 C bus by Audio communications can also be accomplished using the MIC2555 and any and all of these formats can be utilized by a single system. All communications are accomplished via the D+ and D- I/O pins. The information passed through D+ and D-, such as USB, UART, or audio, depends upon the mode of communication ...
Page 11
... OTG components can send and receive audio signals via the D+, D- lines. The MIC2555 will monitor the D+ line for voltages crossing one of two levels means of detecting a car kit interrupt signal. These interrupt events are captured and flagged by the Serial Controller. ...
Page 12
... Dedicated bits in the control registers control all of these functions. Because these bits act independently possible to have V the same time. This situation will not harm the MIC2555. To prevent system leakage currents from biasing V a voltage that would mimic a session valid condition, the ...
Page 13
... It is used to detect the presence or removal of a peripheral device as well as to differentiate between USB and non-USB peripherals unique to the mini- USB connectors and receptacles. MIC2555’s ID Detector is operational in both the Active and Suspended power modes, and differentiates between three conditions: ID Pin Condition ...
Page 14
... BAT UART are reduced accordingly. June 2005 Interrupt Detector When in Audio mode, the MIC2555 does not participate in the audio transmissions, but monitors the D+ line for interrupt pulses. If the Serial Controller is configured to flag interrupt pulses, the system controller can exchange both audio signals and digital information with the target device ...
Page 15
... SE0_VM data DAT_VP SE0_VM SE_DM RX data RX data TX data TX_DAT TX_SE0 RX_SE0 RX data RX data SE_DM RX data RX data RX_SE0 RX data RX data Outputs D- RCV 1 unused 0 unused 0 unused 0 unused 0 undefined undefined MIC2555 M9999-060805 (408) 955-1690 ...
Page 16
... Suspend power mode, and dat_se0 = 1 (DAT-SE0 mode), then the DAT_VP_RX pin will reflect the output the D+ single ended receiver. This is necessary so RX data SE0_VM that a controller connected to the transceiver can detect data pulsing while the transceiver is in suspended mode MIC2555 Outputs SE0_VM_TX RCV 1 n/a 0 n/a 0 n/a 0 n/a ...
Page 17
... BUS VTRM V supplies a regulated 3.3V to the D+, D- output TRM drivers, pull-up resistors and other circuitry internal to the MIC2555. A small filter capacitor is required to insure the regulator remains stable under all operating conditions. A good quality 1µF capacitor is sufficient for this purpose. June 2005 V TRM other system functions, typically less ...
Page 18
... DAT_VP_RX, SE0_VM_TX, RCV DAT_VP_RX, SE0_VM_TX and RCV provide the data transfer interface between the system controller and MIC2555. RCV is an output only pin, supplying the output of a differential receiver monitoring the D+, D- pins, while DAT_VP_RX, SE0_VM_TX are bi-directional (I/O) pins and change function in accordance with different USB and UART mode selections ...
Page 19
... I C Address locations by convention. MIC2555 address: 01011xxb (Bit order: A6 The ADR0 pin and MIC2555’s ‘dash number’ control the ‘xx’ of MIC2555’s address, where –0 or –1 specifies the higher order bit’s value: Part Number MIC2555BML-0 ...
Page 20
... GPIO_2 GPIO_1 0 0 GPIO_2 GPIO_1 0 0 GPIO_2 GPIO_1 cr_int_sel id_det_off cp_off 0 0 GPIO_2 GPIO_1 0 0 GPIO_2 GPIO_1 MIC2555 BIT 0 speed dp_pull- up vbus_vld vbus_vld vbus_vld vbus_vld pwr_dn GPIO_0 GPIO_00 GPIO_0 pwr_dn GPIO_0 GPIO_0 M9999-060805 (408) 955-1690 ...
Page 21
... Vendor ID. Address 01h contains upper byte of Vendor ID. A number unique to each manufacturer, for each device type produced. The manufacturer assigns this 16 rd 02h number. Address 02h contains lower byte. Address 03h contains upper byte. 21 MIC2555 Interrupt Source GPIO Interrupt ...
Page 22
... OE_INT/ becomes an output and is asserted 1 rd/s/c bit 5 LOW when interrupt occurs, if suspend = 1. If suspend = 0, pin remains an input USB mode 1 rd/s/c bit UART mode 0 = GPIO pins operate as standard GPIO GPIO_0 = 2 1 rd/s/c bit 7 GPIO_1 = 2 GPIO_2 = standard GPIO 22 MIC2555 nd UART RX nd UART TX M9999-060805 (408) 955-1690 ...
Page 23
... Disable (bypass) current source pull- pin. Strong pull- pin clock line only transmits Bi-directional I 1 rd/s/c bit 7 Bi-directional clock is required if target device able to control data rate by holding SCL low. 23 MIC2555 ) BUS 2 C clock line. M9999-060805 (408) 955-1690 ...
Page 24
... Enables interrupts on transition from TRUE to FALSE set – 0Ch 1 set = 1, Interrupt clr – 0Dh 1 clr = 0, no interrupt. 1 rd/s/c bit 0 1 rd/s/c bit 1 1 rd/s/c bit 2 1 rd/s/c bit 3 1 rd/s/c bit 4 1 rd/s/c bit 5 1 rd/s/c bit 6 1 rd/s/c bit 7 24 > 4.4V < 2.0V. BUS < 0.8V. (Session End comparator output = M9999-060805 (408) 955-1690 MIC2555 ...
Page 25
... June 2005 Enables interrupts on transition from FALSE to TRUE. set – 0Eh 1 set = 1, Interrupt clr – 0Fh 1 clr = 0, no interrupt. 1 rd/s/c bit 0 1 rd/s/c bit 1 1 rd/s/c bit 2 1 rd/s/c bit 3 1 rd/s/c bit 4 1 rd/s/c bit 5 1 rd/s/c bit 6 1 rd/s/c bit 7 25 MIC2555 M9999-060805 (408) 955-1690 ...
Page 26
... Indicates which sources have interrupted. clr – 1Bh 1 = interrupt. 1 rd/s/c bit 0 1 rd/s/c bit 1 1 rd/s/c bit 2 1 rd/s/c bit 3 1 rd/s/c bit 4 1 rd/s/c bit 5 1 rd/s/c bit 6 1 rd/s/c bit 7 26 MIC2555 M9999-060805 (408) 955-1690 ...
Page 27
... Interrupt clr = 0, no interrupt. cause the associated bit to be cleared. BIT 5 BIT 4 BIT 3 BIT 2 BIT MIC2555 BIT M9999-060805 (408) 955-1690 ...
Page 28
... Place all other traces at >2w from all signal line traces. • Control signal line impedances to ±10%. • Keep R as close to the IC as possible, with www.DataSheet4U.com series equal distance between R and D–. June 2005 and the IC for both D+ series 28 MIC2555 M9999-060805 (408) 955-1690 ...
Page 29
... Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully June 2005 24-Pin MLF (ML) indemnify Micrel for any damages resulting from such use or sale. © 2004 Micrel, Incorporated. 29 MIC2555 M9999-060805 (408) 955-1690 ...