ZHCSEN5C October 2012 – December 2015 DS125MB203
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 修訂歷史記錄
- 5 說明 （續）
- 6 Pin Configuration and Functions
- 7 Specifications
- 8 Detailed Description
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12器件和文檔支持
- 13機械、封裝和可訂購信息
6 Pin Configuration and Functions
NJY Package
54-Pin WQFN
Top View (looking down through package)
Pin Functions: Common Connections(1)
| PIN | TYPE | DESCRIPTION | |
|---|---|---|---|
| NAME | NO. | ||
| DIFFERENTIAL HIGH-SPEED INPUTS AND OUTPUTS | |||
| D_IN0+, D_IN0-, D_IN1+, D_IN1- |
10, 11, 15, 16 | I | Inverting and noninverting CML differential inputs to the equalizer. A gated on-chip 50-Ω termination resistor connects D_INn+ to VDD and D_INn– to VDD when enabled. AC coupling required on high-speed I/O. |
| D_OUT0+, D_ OUT0-, D_OUT1+, D_OUT1- |
3, 4, 7, 8 | O | Inverting and noninverting low power differential signaling 50-Ω outputs with de-emphasis. Fully compatible with AC-coupled CML inputs. AC coupling required on high-speed I/O. |
| S_INA0+, S_INA0-, S_INA1+, S_INA1- |
45, 44, 40, 39 | I | Inverting and noninverting CML differential inputs to the equalizer. An on-chip 50-Ω termination resistor connects S_INAn+ to VDD and S_INAn– to VDD. AC coupling required on high-speed I/O. |
| S_INB0+, S_INB0-, S_INB1+, S_INB1- |
43, 42, 38, 37 | I | Inverting and noninverting CML differential inputs to the equalizer. An on-chip 50-Ω termination resistor connects S_INBn+ to VDD and S_INBn– to VDD. AC coupling required on high-speed I/O. |
| S_OUTA0+, S_OUTA0-, S_OUTA1+, S_OUTA1- |
35, 34, 31, 30 | O | Inverting and noninverting low power differential signaling 50-Ω outputs with de-emphasis. Fully compatible with AC-coupled CML inputs. |
| S_OUTB0+, S_OUTB0-, S_OUTB1+, S_OUTB1- |
33, 32, 29, 28 | O | Inverting and noninverting low power differential signaling 50-Ω outputs with de-emphasis. Fully compatible with AC-coupled CML inputs. AC coupling required on high-speed I/O. |
| CONTROL PINS - SHARED (LVCMOS) | |||
| ENSMB | 48 | I, FLOAT, LVCMOS |
System Management Bus (SMBus) enable pin Tie 1 kΩ to VDD = register access SMBus slave mode FLOAT = Read external EEPROM (master SMBUS mode) Tie 1 kΩ to GND = pin mode |
| CONTROL PINS — BOTH PIN AND SMBus MODES (LVCMOS) | |||
| RESET | 52 | I, LVCMOS | 0: Normal operation (device is enabled). 1: Low power mode. |
| VDD_SEL | 25 | I, FLOAT | Controls the internal regulator FLOAT: 2.5-V mode Tied to GND: 3.3-V mode |
| POWER | |||
| GND | DAP | Power | Ground pad (DAP - die attach pad). |
| VDD | 9, 14,36, 41, 51 | Power | Power supply pins CML/analog 2.5-V mode, connect to 2.5V ±5% 3.3-V mode, connect 0.1-µF cap to each VDD pin |
| VIN | 24 | Power | In 3.3-V mode, feed 3.3 V ±10% to VIN In 2.5-V mode, leave floating. |
(1) LVCMOS inputs without the “Float” conditions must be driven to a logic low or high at all times or operation is not ensured.
Input edge rate for LVCMOS/FLOAT inputs must be faster than 50 ns from 10–90%.
For 3.3V mode operation, VIN pin = 3.3V and the "VDD" for the 4-level input is 3.3V.
For 2.5V mode operation, VDD pin = 2.5V and the "VDD" for the 4-level input is 2.5V.
Input edge rate for LVCMOS/FLOAT inputs must be faster than 50 ns from 10–90%.
For 3.3V mode operation, VIN pin = 3.3V and the "VDD" for the 4-level input is 3.3V.
For 2.5V mode operation, VDD pin = 2.5V and the "VDD" for the 4-level input is 2.5V.
Pin Functions: SMBus/EEPROM Control
| PIN | TYPE | DESCRIPTION | |
|---|---|---|---|
| NAME | NO. | ||
| ENSMB = 1 (SMBUS SLAVE MODE), FLOAT (SMBUS MASTER MODE) | |||
| SCL | 50 | I, LVCMOS, O, Open-drain |
ENSMB master or slave mode SMBUS clock input pin is enabled (slave mode) SMBUS clock output when loading configuration from EEPROM (master mode) |
| SDA | 49 | I, LVCMOS, O, Open-drain |
ENSMB master or slave mode The SMBus bidirectional SDA pin is enabled. Data input or open-drain (pulldown only) output. |
| AD0-AD3 | 54, 53, 47, 46 | I, LVCMOS | ENSMB Master or Slave mode SMBus slave address inputs. In SMBus mode, these pins are the user set SMBus slave address inputs. |
| READ_EN | 26 | I, LVCMOS | ENSMB = FLOAT (SMBUS master mode) When using an external EEPROM, a transition from high to low starts the load from the external EEPROM |
| CONTROL PINS — BOTH PIN AND SMBus MODES (LVCMOS) | |||
| MODE | 21 | I, 4-LEVEL, LVCMOS |
0: SATA/SAS, PCIe GEN 1/2 and 10GE FLOAT: AUTO (PCIe GEN 1/2 or GEN 3) 1: 10-KR |
| INPUT_EN | 22 | I, 4-LEVEL, LVCMOS |
0: Normal operation, FANOUT is disabled, use SEL0/1 to select the A or B input/output (see SEL0/1 pin), input always enabled with 50 Ω. 20 kΩ to GND: Reserved FLOAT: AUTO - Use RX Detect, SEL0/1 to determine which input or output to enable, FANOUT is disable 1: Normal operation, FANOUT is enabled (both S_OUT0/1 are ON). Input always enabled with 50 Ω. |
| SEL0 | 23 | I, 4-LEVEL, LVCMOS |
Select pin for lane 0. 0: selects input S_INB0±, output S_OUTB0±. 20 kΩ to GND: Selects input S_INB0±, output S_OUTA0±. FLOAT: selects input S_INA0±, output S_OUTB0±. 1: Selects input S_INA0±, output S_OUTA0±. |
| SEL1 | 26 | I, 4-LEVEL, LVCMOS |
Select pin for lane 1. 0: Selects input S_INB1±, output S_OUTB1±. 20 kΩ to GND: Selects input S_INB1±, output S_OUTA1±. FLOAT: Selects input S_INA1±, output S_OUTB1±. 1: Selects input S_INA1±, output S_OUTA1±. |
| OUTPUT (LVCMOS) | |||
| ALL_DONE | 27 | 0, LVCMOS | Valid register load status output 0: External EEPROM load passed 1: External EEPROM load failed |
Pin Functions: Pin Control
| PIN | TYPE | DESCRIPTION | |
|---|---|---|---|
| NAME | NO. | ||
| ENSMB = 0 (PIN MODE) | |||
| EQ_D0, EQ_D1 EQ_S0, EQ_S1 |
20, 19, 46, 47 | I, 4-LEVEL, LVCMOS |
EQ_D[1:0] and EQ_S[1:0] control the level of equalization on the high-speed input pins. The inputs are organized into two sides. The D side is controlled with the EQ_D[1:0] pins and the S side is controlled with the EQ_S[1:0] pins. See Table 2. |
| DEM_S0, DEM_S1 DEM_D0, DEM_D1 |
49, 50, 53, 54 | I, 4-LEVEL, LVCMOS |
DEM_D[1:0] and DEM_S[1:0] control the level of VOD and de-emphasis on the high-speed output. The outputs are organized into two sides. The D side is controlled with the DEM_D[1:0] pins and the S side is controlled with the DEM_S[1:0] pins. See Table 3. |
| CONTROL PINS — BOTH PIN AND SMBus MODES (LVCMOS) | |||
| MODE | 21 | I, 4-LEVEL, LVCMOS |
0: SATA/SAS, PCIe GEN 1/2 and 10GE FLOAT: AUTO (PCIe GEN 1/2 or GEN 3) 1: 10-KR |
| INPUT_EN | 22 | I, 4-LEVEL, LVCMOS |
0: Normal operation, FANOUT is disabled, use SEL0/1 to select the A or B input/output (see SEL0/1 pin), input always enabled with 50 Ω. 20 kΩ to GND: Reserved FLOAT: AUTO - Use RX Detect, SEL0/1 to determine which input or output to enable, FANOUT is disable 1: Normal operation, FANOUT is enabled (both S_OUT0/1 are ON). Input always enabled with 50 Ω. |
| SEL0 | 23 | I, 4-LEVEL, LVCMOS |
Select pin for lane 0. 0: Selects input S_INB0±, output S_OUTB0±. 20 kΩ to GND: Selects input S_INB0±, output S_OUTA0±. FLOAT: Selects input S_INA0±, output S_OUTB0±. 1: Selects input S_INA0±, output S_OUTA0±. |
| SEL1 | 26 | I, 4-LEVEL, LVCMOS |
Select pin for lane 1. 0: Selects input S_INB1±, output S_OUTB1±. 20 kΩ to GND: Selects input S_INB1±, output S_OUTA1±. FLOAT: Selects input S_INA1±, output S_OUTB1±. 1: Selects input S_INA1±, output S_OUTA1±. |