GTLP1B151

GTLP1B151 1-Bit LVTTL/GTLP Transceiver with Separate LVTTL Port and Feedback Path

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GTLP1B151 1-Bit LVTTL/GTLP Transceiver with Separate LVTTL Port and Feedback Path

June 2001 Revised February 2002

GTLP1B151 1-Bit LVTTL/GTLP Transceiver with Separate LVTTL Port and Feedback Path
General Description
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. High-speed backplane operation is a direct result of GTLP s reduced output swing ( 1V), reduced input threshold levels and output edge rate control. The edge rate control minimizes bus-settling time. GTLP is a Fairchild Semiconductor derivative of the Gunning Transistor Logic (GTL) JEDEC standard JESD8-3. Fairchild s GTLP has internal edge-rate control and is process, voltage and temperature compensated. GTLP s I/O structure is similar to GTL and BTL but offers different output levels and receiver threshold. Typical GTLP output voltage levels are: VOL 0.5V, VOH 1.5V, and VREF 1V.

Features
s Separate LVTTL inputs and outputs s A feedback path for control and diagnostics monitoring s Bidirectional interface between GTLP and LVTTL logic levels s Designed with edge rate control circuitry to reduce output noise on the GTLP port s VREF pin provides external supply reference voltage for receiver threshold adjustibility s Special PVT compensation circuitry to provide consistent performance over variations of process, supply voltage and temperature s TTL compatible driver and control inputs s Designed using Fairchild advanced BiCMOS technology s Bushold data inputs on A port to eliminate the need for external pull-up resistors for unused inputs s Power up/down and power off high impedance for live insertion s Open drain on GTLP to support wired-or connection s Flow through pinout optimizes PCB layout s A Port source/sink -24mA / 24mA s B Port sink 50mA

Ordering Code:
Order Number GTLP1B151M GTLP1B151MX GTLP1B151K8X Package Number M08A M08A MAB08A (Preliminary) Package Description 8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow [TUBE] 8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow [TAPE and REEL] 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide [TAPE and REEL]

2002 Fairchild Semiconductor Corporation

DS500484

www.fairchildsemi.com