pi74avc-16646 Pericom Semiconductor Corporation, pi74avc-16646 Datasheet

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pi74avc-16646

Manufacturer Part Number
pi74avc-16646
Description
2.5v 16-bit Bus Transceiver And Register With 3-state Outputs
Manufacturer
Pericom Semiconductor Corporation
Datasheet
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5
Product Features
• PI74AVC
• True ±24mA Balanced Drive @ 3.3V
• I
• 3.6V I/O Tolerant Inputs and Outputs
• All outputs contain a patented DDC
• Industrial operation: –40°C to +85°C
• Packaging (Pb-free & Green available):
Logic Block Diagrams
1CLKBA
1CLKAB
(Dynamic DriveControl) circuit that reduces noise without
degrading propagation delay.
V
– 56-pin 240 mil wide plastic TSSOP (A)
1SBA
1SAB
1DIR
OFF
1OE
1A1
CC
06-0170
56
55
54
= 1.65V to 3.6V
supports partial power-down operation
1
2
3
5
+
16646 is designed for low-voltage operation,
One of Eight Channels
1D
C1
TO SEVEN OTHER CHANNELS
C1
1D
52
1B1
1
2CLKBA
2CLKAB
2SBA
2SAB
Product Description
The PI74AVC+16646 is a 16-bit bus transceiver and register designed
for 1.65V to 3.6V V
transceivers or one 16-bit transceiver. Data on the A or B bus is
clocked into the registers on the low-to-high transition of the
appropriate Clock (CLKAB or CLKBA) input. Four fundamental
bus-management functions can be performed.
Output Enable (OE) and Direction Control (DIR) inputs are provided
to control the transceiver functions. In the transceiver mode, data
present at the high-impedance port may be stored in either register
or in both. The Select Control (SAB and SBA) inputs can multiplex
stored and real-time (transparent mode) data. Circuitry used for
Select Control eliminates the typical decoding glitch that occurs in
a multiplexer during the transition between stored and real-time
data. DIR determines which bus receives data when OE is LOW. In
the isolation mode (OE HIGH), A data may be stored in one register
and/or B data may be stored in the other register.
When an output function is disabled, the input function is still
enabled and may be used to store and transmit data. Only one of the
two buses, A or B, can be driven at a time.
To ensure the high-impedance state during power up or power
down, OE should be tied to V
minimum value of the resistor is determined by the current-sinking
capability of the driver.
2DIR
2OE
2A1
29
28
30
31
27
26
15
One of Eight Channels
2.5V 16-Bit Bus Transceiver and
1D
C1
Register with 3-State Outputs
CC
TO SEVEN OTHER CHANNELS
operation. It can be used as two 8-bit
CC
through a pullup resistor; the
PI74AVC+16646
C1
1D
PS8506B
06/01/06
42
2B1

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pi74avc-16646 Summary of contents

Page 1

... TO SEVEN OTHER CHANNELS 06-0170 2.5V 16-Bit Bus Transceiver and Product Description The PI74AVC+16646 is a 16-bit bus transceiver and register designed for 1.65V to 3.6V V transceivers or one 16-bit transceiver. Data on the bus is clocked into the registers on the low-to-high transition of the appropriate Clock (CLKAB or CLKBA) input. Four fundamental bus-management functions can be performed ...

Page 2

... ↑ ↑ PI74AVC+16646 2.5V 16-Bit Bus Transceiver and Register with 3-State Outputs ...

Page 3

... BUS BUS B xSAB xSBA xDIR xOE PI74AVC+16646 2.5V 16-Bit Bus Transceiver and Register with 3-State Outputs REAL-TIME TRANSFER BUS BUS BUS A B xCLKAB xCLKBA xSAB TRANSFER STORED DATA to A and/or B BUS A B xCLKAB xCLKBA ...

Page 4

... GND to ensure proper device operation PI74AVC+16646 2.5V 16-Bit Bus Transceiver and Register with 3-State Outputs (V <0) .................................... –50mA OK O ±50mA O ..................................................... or GND ............... ±100mA CC (3) ............................................. 64°C/W JA –65°C to 150°C stg ................................. ...

Page 5

... PI74AVC+16646 2.5V 16-Bit Bus Transceiver and Register with 3-State Outputs – ...

Page 6

... PI74AVC+16646 2.5V 16-Bit Bus Transceiver and Register with 3-State Outputs ± ± ...

Page 7

... DD/2 Waveform PHL V (see Note DD Output t PLH V Waveform DD GND 0V (see Note B) 7 PI74AVC+16646 2.5V 16-Bit Bus Transceiver and Register with 3-State Outputs ...

Page 8

... DD/2 Waveform PHL V (see Note DD Output t PLH V Waveform DD GND 0V (see Note B) 8 PI74AVC+16646 2.5V 16-Bit Bus Transceiver and Register with 3-State Outputs ...

Page 9

... DD/2 Waveform PHL V (see Note DD Output t PLH V Waveform DD GND 0V (see Note B) 9 PI74AVC+16646 2.5V 16-Bit Bus Transceiver and Register with 3-State Outputs ...

Page 10

... DD/2 Waveform PHL V (see Note DD Output t PLH V Waveform DD GND 0V (see Note PI74AVC+16646 2.5V 16-Bit Bus Transceiver and Register with 3-State Outputs ...

Page 11

... & PI74AVC+16646 2.5V 16-Bit Bus Transceiver and Register with 3-State Outputs .236 6.0 .244 6.2 SEATING PLANE .047 Max. .004 .008 0.45 .018 0.75 .030 .002 .006 .319 BSC 0.05 8.1 0.15 P ...

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