PI74LCX16501(1997) データシートの表示（PDF） - Pericom Semiconductor
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PI74LCX16501 Datasheet PDF : 5 Pages
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PI74LCX16501
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Fast CMOS 18-Bit Registered Transceivers
Product Features
• Functionally compatible with FCT3, LVT, and 74 series
16501 families of products
• Tri-State outputs
• 5V Tolerant inputs and outputs
• 2.0V-3.6V VCC supply operation
• Balanced sink and source output drives (24 mA)
• Low ground bounce outputs
• Supports live insertion
• ESD Protection exceeds 2000V, Human Body Model
200V, Machine Model
• Packages available:
– 56-pin 240-mil wide plastic TSSOP (A)
– 56-pin 300-mil wide plastic SSOP (V)
Logic Block Diagram
Product Description
Pericom Semiconductor’s PI74LCX series of logic circuits are
produced in the Company’s advanced 0.6 micron CMOS technology,
achieving industry leading speed grades.
The PI74LCX16501 is an 18-bit registered bus transceiver designed
with D-type latches and flip-flops to allow data flow in transparent,
latched, and clocked modes. The Output Enable (OEAB and
OEBA, Latch Enable (LEAB and LEBA) and Clock (CLKAB and
CLKBA) inputs control the data flow in each direction. When
LEAB is HIGH, the device operates in transparent mode for A-to-
B data flow. When LEAB is LOW, the A data is latched if CLKAB
is held at a HIGH or LOW logic level. The A bus data is stored in
the latch/flip-flop on the LOW-to-HIGH transition of CLKAB, if
LEAB is LOW. OEAB performs the output enable function on the
B port. Data flow from B port to A port is similar using OEBA,
LEBA and CLKBA. This high-speed, low-power device offers a
flow-through organization for ease of board layout.
The PI74LCX16501 can be driven from either 3.3V or 5.0V devices
allowing this device to be used as a translator in a mixed
3.3V/5.0V system.
OEAB
CLKBA
LEBA
OEBA
CLKAB
LEAB
A1
C
C
B1
D
D
C
C
D
D
TO 17 OTHER CHANNELS
1
PS2091A 02/11/97
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