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Número de pieza | GTLP1B151 | |
Descripción | 1-Bit LVTTL/GTLP Transceiver with Separate LVTTL Port and Feedback Path | |
Fabricantes | Fairchild Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de GTLP1B151 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
No Preview Available ! 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 diagnos-
tics monitoring.
High-speed backplane operation is a direct result of
GTLP’s reduced output swing (<1V), reduced input thresh-
old 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 pro-
cess, voltage and temperature compensated. GTLP’s I/O
structure is similar to GTL and BTL but offers different out-
put levels and receiver threshold. Typical GTLP output volt-
age 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 out-
put noise on the GTLP port
s VREF pin provides external supply reference voltage for
receiver threshold adjustibility
s Special PVT compensation circuitry to provide consis-
tent performance over variations of process, supply volt-
age 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
Package Description
M08A
8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
[TUBE]
M08A
8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
[TAPE and REEL]
MAB08A
8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide
(Preliminary) [TAPE and REEL]
© 2002 Fairchild Semiconductor Corporation DS500484
www.fairchildsemi.com
1 page Test Circuits and Timing Waveforms
Test Circuit for C Outputs
Test Circuit for B Outputs
Test S
tPLH/tPHL OPEN
tPLZ/tPZL 6V
tPHZ/tPZH GND
Note: CL includes probes and Jig capacitance.
Voltage Waveforms Propagation Delay
Note: CL includes probes and Jig capacitance.
Note: For B Port, CL = 30 pF is used for worst case.
Voltage Waveform Enable and Disable Times
VINHIGH
VINLOW
VM
VX
VY
A or LVTTL
Pins
VCC
0.0
VCC/2
VOL + 0.3V
VOH − 0.3V
B or GTLP
Pins
1.5
0.0
1.0
N/A
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
5 Page |
Páginas | Total 7 Páginas | |
PDF Descargar | [ Datasheet GTLP1B151.PDF ] |
Número de pieza | Descripción | Fabricantes |
GTLP1B151 | 1-Bit LVTTL/GTLP Transceiver with Separate LVTTL Port and Feedback Path | Fairchild Semiconductor |
GTLP1B151K8X | 1-Bit LVTTL/GTLP Transceiver with Separate LVTTL Port and Feedback Path | Fairchild Semiconductor |
GTLP1B151M | 1-Bit LVTTL/GTLP Transceiver with Separate LVTTL Port and Feedback Path | Fairchild Semiconductor |
GTLP1B151MX | 1-Bit LVTTL/GTLP Transceiver with Separate LVTTL Port and Feedback Path | Fairchild Semiconductor |
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