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PDF PI74AVC!6820 Data sheet ( Hoja de datos )
| Número de pieza | PI74AVC!6820 | |
| Descripción | 2.5V 10-Bit Flip-Flop with Dual and 3-State Outputs | |
| Fabricantes | Pericom Semiconductor Corporation | |
| Logotipo |  |
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Features
• PI74AVC+16820 is designed for low-voltage operation,
VCC = 1.65V to 3.6V
• True ±24mA Balanced Drive @ 3.3V
• IOFF supports Partial power-down operation
• 3.6V I/O Tolerant inputs and outputs
• All outputs contain a patented DDC (Dynamic Drive-
Control) circuit that reduces noise without degrading
propagation delay.
• Industrial operation: –40°C to +85°C
• Packaging (Pb-free & Green available):
– 56-pin 240-mil wide plastic TSSOP (A)
– 56-pin 173-mil wide plastic TVSOP (K)
Pin Configuration
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PI74AVC+16820
2.5V 10-Bit Flip-Flop with
Dual and 3-State Outputs
Description
Pericom Semiconductor’s PI74AVC+16820, a 10-bit flip-flop
designed for 1.65V to 3.6V VCC operation. It is designed with
edge-triggered D-type flip- flops. On the positive transition of clock
(CLK) input. The device provides true data at the Q outputs.
A buffered output-enable (OE) input can be used to place the ten
outputs in either a normal logic state (HIGH or LOW level) or
a high-impedance state. In the high-impedance state, the outputs
neither load nor drive the bus lines significantly.The high-impedance
state and increased drive provide the capacity to drive bus lines
without the need for interface or pullup components.
OE does not affect the internal operation of the flip-flops. Old data
can be retained or new data can be entered while the outputs are in
the high-impedance state.
To ensure the high-impedance state during power-up or power-
down, OE should be tied to VCC through a pullup resistor whose
minimum value is determined by the current sinking capability of
the driver.
Block Diagram
1OE
1
2OE 28
CLK
D1
56
55
C1
1D
2 1Q1
3 1Q2
TO 9 OTHER CHANNELS
1
PS8446D
08/18/04
1 page  
PI74AVC+16820
2.5V 10-Bit Flip-Flop
w/Dual and 3-State Outputs
Timing Requirements
(Over recommended operating free-air temperature range, unless otherwise noted, see Figures 1 thru 4)
VCC =
1.2V
VCC = 1.5V
± 0.1V
VCC = 1.8V
± 0.15V
VCC = 2.5V
± 0.2V
Min. Max. Min. Max. Min. Max. Min. Max.
fCLOCK Clock Frequency
150 180
VCC = 3.3V
± 0.3V
Min. Max.
180
Units
MHz
tW Pulse duration, CLK high or low
tSU Setup time, data before CLK
tH Hold time, data after CLK
6 33
5.7 3.5 2.5 ns
1.2 1 1
Switching Characteristics
(Over recommended operating free-air temperature range, unless otherwise noted, see Figures 1 thru 4)
Parameters
From
To
VCC = 1.2V
(Input) (Output)
Min. Max.
VCC = 1.5V
± 0.1V
Min. Max.
VCC = 1.8V
± 0.15V
Min. Max.
VCC = 2.5V
± 0.2V
Min. Max.
fMAX
150 180
tPD
CLK
Q
4 3.2
tEN OE Q
5.8 5.1
tDIS OE Q
5 4.6
VCC = 3.3V ±
0.3V
Min. Max.
180
2.7
4.5
4.2
Units
MHz
ns
Operating Characteristics, TA= 25°C
Parameters
Test Conditions
Cpd Power Dissipation
Capacitance
Outputs
Enabled
Outputs
Disabled
CL = 0pF, f = 10 MHz,
2 outputs switching
VCC = 1.8V
± 0.15V
Typical
40
23
VCC = 2.5V
± 0.2V
Typical
48
27
VCC = 3.3V
± 0.3V
Typical
Units
55
pF
32
5
PS8446D
08/18/04
5 Page 
PI74AVC+16820
2.5V 10-Bit Flip-Flop
w/Dual and 3-State Outputs
Ordering Information
Ordering Code
PI74AVC+16820A
PI74AVC+16820AE
PI74AVC+16820K
PI74AVC+16820KE
Package Code
A
A
K
K
Package Description
56-pin, 240-mil wide plastic TSSOP
Pb-free & Green, 56-pin, 240-mil wide plastic TSSOP
56-pin, 173-mil wide plastic TSSOP
Pb-free & Green, 56-pin, 173-mil wide plastic TSSOP
Notes:
1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
11
PS8446D
08/18/04
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet PI74AVC!6820.PDF ] | |
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