GTLP1B151K8X

Revised February 2002 GTLP1B151 1-Bit LVTTL/GTLP Transceiver with Separate LVTTL Port and Feedback Path General Description Features The GTLP1B151 is a 1-bit transceiver that provides LVTTL-to-GTLP signal level translation. Individual LVTTL and GTLP driver enables are also available. The GTLP1B151 offers separate LVTTL inputs and outputs, and can provide a feedback path for control and diagnostics monitoring. ■ Separate LVTTL inputs and outputs High-speed backplane operation is a direct result of GTLP’s reduced output swing (2000V ESD Rating −40°C to +85°C Operating Temperature (TA) DC Output Diode Current (IOK) Storage Temperature (TSTG) 3.15V to 3.45V Supply Voltage VCC DC Output Voltage (VO) −65°C to +150°C Note 2: IO Absolute Maximum Rating must be observed. DC Electrical Characteristics Over Recommended Operating Free-Air Temperature Range, VREF = 1.0V (unless otherwise noted). Symbol VIH VIL Min Test Conditions Typ B Port VREF + 0.05 Others 2.0 B Port 0.0 VTT VREF − 0.05 Others VREF B Port VTT B Port VIK VOH VOL C Port C Port B Port II Control Pins 0.8 0.7V 1.0 VREF + 50 mV 1.5 VCC = 3.15V II = −18 mA VCC = Min to Max (Note 4) IOH = −100 µA VCC = 3.15V IOH = −8 mA 2.4 IOH = -24mA 2.2 IOFF V V V IOL = 100 µA 0.2 IOL = 8 mA 0.4 VCC = 3.15V IOL = 24mA 0.5 VCC = 3.15V IOL = 40 mA 0.4 IOL = 50 mA 0.55 VCC = 3.45V VCC = 3.45V A or C Ports, VCC = 0 V V VCC VCC = 3.15V VCC = 3.45V V −1.2 VCC = Min to Max (Note 4) VI = 3.45V 5 −5 VI = 3.45V 10 VI = 0V B Port 1.3V Units VCC –0.2 VI = 0V A Port Max (Note 3) −10 VI = 3.45 5 V V µA µA µA VI = 0 −5 VI or VO = 0 to 3.45V 30 µA 30 µA Control Pins B Port VCC = 0 VI or VO = 0 to 3.45V II (HOLD) A Port VCC = 3.15V VI = 0.8V VI = 2.0V −75 IOZH C Port VCC = 3.45V VO = 3.45V 10 VCC = 3.45V VO = 0V −10 VO = 0.0V −5 VO = 3.45V B Port IOZL C Port B Port 3 75 5 µA µA µA www.fairchildsemi.com GTLP1B151 Absolute Maximum Ratings(Note 1) GTLP1B151 DC Electrical Characteristics Symbol (Continued) Min Test Conditions Typ Max (Note 3) IPU/PD All Ports VCC = 0 to 1.5V VI = 0 to 3.45V 30 ICC A or B Ports VCC = 3.45V Outputs HIGH 11 or C Port IO = 0 Outputs LOW 11 VI = VCC/VTT or GND Outputs Disabled 11 One Input at VCC 2 ∆ICC A Port and VCC = 3.45V, (Note 5) Control Pins A or Control Inputs at VCC or GND −0.6V Ci VI = VCC or 0 Control Pins 3 and A Port Units µA mA mA pF CO C Port VI = VCC or 0 5 pF CI/O B Port VI = VTT or 0 5.5 pF Note 3: All typical values are at VCC = 3.3V and TA = 25°C. Note 4: For conditions shown as Min, use the appropriate value specified under recommended operating conditions. Note 5: This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND. Note: GTLP V REF and VTT are specified to 2% tolerance since signal integrity and noise margin can be significantly degraded if these supplies are noisy. In addition, VTT and RTERM can be adjusted beyond the recommended operating to accommodate backplane impedances other than 50Ω, but must remain within the boundaries of the DC Absolute Maximum Ratings. Similarly, VREF can be adjusted to optimize noise margin. AC Electrical Characteristics Over recommended range of supply voltage and operating free-air temperature, VREF = 1.0V (unless otherwise noted). CL = 30 pF for B Port and CL = 50 pF for C Port. Symbol tPLH tPHL tPLH tPHL tPLH tPHL From To (Input) (Output) A B B C A C Min Typ Max (Note 6) 1.2 3.2 7.3 0.8 2.3 4.5 1.4 2.8 4.4 1.6 2.9 5.0 1.6 6.0 8.1 2.0 5.1 7.5 Unit ns ns ns tRISE Transition Time, B Outputs (20% to 80%) 1.4 tFALL Transition Time, B Outputs (80% to 20%) 2.0 ns tRISE Transition Time, C Outputs (10% to 90%) 2.8 ns tFALL Transition Time, C Outputs (90% to 10%) tPZH, tPZL tPHZ, tPLZ tPLH tPHL OEC OEB B Note 6: All typical values are at VCC = 3.3V, and TA = 25°C. www.fairchildsemi.com 2.5 1.2 C 4 ns 2.7 ns 5.3 1.4 2.8 4.9 1.7 3.5 5.9 0.5 2.2 4.7 ns ns Test Circuit for C Outputs Test Test Circuit for B Outputs S tPLH/tPHL OPEN tPLZ/tPZL 6V Note: CL includes probes and Jig capacitance. Note: For B Port, CL = 30 pF is used for worst case. tPHZ/tPZH GND Note: C L includes probes and Jig capacitance. Voltage Waveforms Propagation Delay Voltage Waveform Enable and Disable Times A or LVTTL Pins B or GTLP Pins VINHIGH VCC 1.5 VINLOW 0.0 0.0 VM VCC/2 1.0 VX VOL + 0.3V N/A VY VOH − 0.3V N/A Note: Waveform 1 is for an output with internal conditions such that the output is LOW except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is HIGH except when disabled by the output control. Note: All input pulses have the following characteristics: Frequency = 10MHz, tRISE = tFALL = 2 ns (10% to 90%), ZO = 50Ω. The outputs are measured one at a time with one transition per measurement. 5 www.fairchildsemi.com GTLP1B151 Test Circuits and Timing Waveforms GTLP1B151 Physical Dimensions inches (millimeters) unless otherwise noted 8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Package Number M08A www.fairchildsemi.com 6 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide Package Number MAB08A Preliminary Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. www.fairchildsemi.com 7 www.fairchildsemi.com GTLP1B151 1-Bit LVTTL/GTLP Transceiver with Separate LVTTL Port and Feedback Path Physical Dimensions inches (millimeters) unless otherwise noted (Continued)