IDT74GTLP16612 Datasheet, PDF (1/8 Pages) Integrated Device Technology – CMOS 18-BIT TTL/GTLP UNIVERSAL BUS TRANSCEIVER

IDT74GTLP16612
CMOS 18-BIT TTL/GTLP UNIVERSAL BUS TRANSCEIVER
CMOS 18-BIT TTL/GTLP
UNIVERSAL BUS
TRANSCEIVER
INDUSTRIAL TEMPERATURE RANGE
IDT74GTLP16612
FEATURES:
• Bidirectional interface between GTLP and TTL logic levels
• Edge Rate Control Circuit reduces output noise
• VREF pin provides reference voltage for receiver threshold
• CMOS technology for low power dissipation
• Special PVT Compensation circuitry to provide consistent perfor-
mance over variations of process, supply voltage, and temperature
• 5V tolerant inputs and outputs on A-Port
• Bus-Hold to eliminate the need for external pull-up resistors for
unused inputs to A-Port
• Power up/down high-impedance
• TTL-compatible Driver and Control inputs
• High Output source/sink ±32mA on A-Port pins
• Flow-through architecture optimizes system layout
• D-type latch and flip-flop architecture for data flow in clocked,
transparent, or latched mode
• Open drain on GTLP to support wired OR connection
• Available in SSOP and TSSOP packages
DESCRIPTION:
The GTLP16612 is an 18-bit universal bus transceiver. It provides
signal level translation, from TTL to GTLP, for applications requiring a high-
speed interface between cards operating at TTL logic levels and back-
planes operating at GTLP logic levels. GTLP provides reduced output
swing (<1V), reduced input threshold levels, and output edge-rate control
to minimize signal setting times. The GTLP16612 is a derivative of the Gun-
ning Transceiver Logic (GTL) JEDEC standard JESD8-3 and incorporates
internal edge-rate control, which is process, voltage, and temperature
(PVT) compensated.
GTLP output low voltage is less than 0.5V. The output high is 1.5V, and
the receiver threshold is 1V.
FUNCTIONAL BLOCK DIAGRAM
OEAB ¹
56
CEAB
CLKAB ⁵⁵
LEAB ²
LEBA ²⁸
CLKBA ³⁰
29
CEBA
OEBA ²⁷
A1 ³
CE
1D
C1
CLK
CE
1D
C1
CLK
ONE OF 18 CHANNELS
GTLP
54 _B1
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 1999 Integrated Device Technology, Inc.
TO 17 OTHER CHANNELS
1
OCTOBER 1999
DSC-5477/2