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MIC2555YML-0 Datasheet(PDF) 3 Page - Micrel Semiconductor |
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MIC2555YML-0 Datasheet(HTML) 3 Page - Micrel Semiconductor |
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3 / 29 page  Micrel, Inc. MIC2555 June 2005 3 M9999-060805 (408) 955-1690 Pin Description Pin Number Type Pin Name Pin Description 1 O RCV Output from differential receiver. 2 I/O SE0_VM_TX = SE0 in USB DAT-SE0 mode = VM in VP-VM mode. = UART Transmit output when in UART Mode See figures 1 and 2 on page 4 3 I/O DAT_VP_RX = DAT in USB DAT-SE0 mode. = VP in VP-VM mode = UART Receive input when in UART mode See figures 1 and 2 on page 4 4 I/O OE_INT/ A Multi-mode pin controlling various functions in conjunction with control register bits. A logic LOW on this pin gives the following results: = OE (Output Enable): Enables D+, D- as USB outputs. = INT/ (Interrupt): Active LOW output when register bits ‘suspend’ and ‘oe_int_en’ both = 1. 5 O INT/ Interrupt (bar). Open Drain Active LOW output. May be wire-ORed with other interrupt signals. 6 I/O GPIO_0_RX = General purpose I/O. Open drain output. = Alternate UART Receive input. See figures 1 and 2 on page 4 7 I/O GPIO_1_TX = General purpose I/O. Open drain output. = Alternate UART Transmit output. See figures 1 and 2 on page 4 8 I/O SCL I 2C Clock 9 I/O SDA I 2C Data 10 I ADR_0 Sets Address bit A0 of I 2C controller. This pin is a digital input and must not be left floating. 11 I RESET/ System reset. Active LOW. 12 I/O GPIO_2 General purpose I/O. Open drain output. 13 I/O GND_D System Digital ground. 14 I/O ID Identification input. Monitors the ID pin of the USB connector and indicates both the presence of a device and type (USB or not USB). 15 I/O D+ = USB D+ when in USB mode. = UART Receive in UART mode. = Right Speaker audio output in stereo mode. = Microphone signal from Car Kit. 16 I/O D- = USB D- when in USB mode. = UART Transmit out in UART mode. = Left Speaker audio output in stereo mode. = Monaural audio output to Car Kit. 17 I/O VBUS USB 5V power. 18 I/O VTRM Internal 3.3V supply. Sets USB signal levels. 19 I CAP++ Positive lead for charge pump reservoir capacitor. 20 I CAP+ Positive lead for charge pump capacitor. 21 I VBAT Positive voltage from battery. Supplies power to MIC2555 internal circuitry and power for charge pump when driving VBUS. 22 I CAP- Negative lead for charge pump capacitor. 23 I GND_A Analog ground. Isolated Charge Pump ground. 24 I VDD_LGC Logic supply voltage. Used to set logic levels between MIC2555 and System Controller / ASIC. |
Similar Part No. - MIC2555YML-0 |
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Similar Description - MIC2555YML-0 |
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