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PDF 74VCX32245 Data sheet ( Hoja de datos )
| Número de pieza | 74VCX32245 | |
| Descripción | Low Voltage 32-Bit Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs (Preliminary) | |
| Fabricantes | Fairchild Semiconductor | |
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Preliminary
August 2001
Revised August 2001
74VCX32245
Low Voltage 32-Bit Bidirectional Transceiver
with 3.6V Tolerant Inputs and Outputs (Preliminary)
General Description
The VCX32245 contains thirty-two non-inverting bidirec-
tional buffers with 3-STATE outputs and is intended for bus
oriented applications. The device is byte controlled. Each
byte has separate 3-STATE control inputs which can be
shorted together for full 32-bit operation. The T/R inputs
determine the direction of data flow through the device.
The OE inputs disable both the A and B ports by placing
them in a high impedance state.
The 74VCX32245 is designed for low voltage (1.65V to
3.6V) VCC applications with I/O compatibility up to 3.6V.
The 74VCX32245 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing low CMOS power dissipation.
Features
s 1.65V–3.6V VCC supply operation
s 3.6V tolerant inputs and outputs
s tPD
2.5 ns max for 3.0V to 3.6V VCC
3.0 ns max for 2.3V to 2.7V VCC
6.0 ns max for 1.65V to 1.95V VCC
s Power-down high impedance inputs and outputs
s Supports live insertion/withdrawal (Note 1)
s Static Drive (IOH/IOL)
±24 mA @ 3.0V VCC
±18 mA @ 2.3V VCC
±6 mA @ 1.65V VCC
s Uses patented noise/EMI reduction circuitry
s Latchup performance exceeds 300 mA
s ESD performance:
Human body model > 2000V
Machine model >200V
s Packaged in plastic Fine-Pitch Ball Grid Array (FBGA)
Note 1: To ensure the high-impedance state during power up or power
down, OE should be tied to VCC through a pull-up resistor; the minimum
value of the resistor is determined by the current-sourcing capability of the
driver.
Ordering Code:
Order Number Package Number
Package Description
74VCX32245GX
(Note 2)
BGA96A
96-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide
[Tape and Reel]
Note 2: BGA package available in Tape and Reel only.
Logic Symbol
© 2001 Fairchild Semiconductor Corporation DS500415
www.fairchildsemi.com
1 page  
Preliminary
AC Electrical Characteristics (Note 9)
TA = −40°C to +85°C, CL = 30 pF, RL = 500Ω
Symbol
Parameter
VCC = 3.3V ± 0.3V
VCC = 2.5 ± 0.2V
VCC = 1.8V ± 0.15V
Min Max Min Max Min Max
tPHL, tPLH Prop Delay
0.8 2.5 1.0 3.0 1.5 6.0
tPZL, tPZH Output Enable Time
0.8 3.8 1.0 4.9 1.5 9.3
tPLZ, tPHZ Output Disable Time
0.8 3.7 1.0 4.2 1.5 7.6
Note 9: For CL = 50pF, add approximately 300ps to the AC maximum specification.
Dynamic Switching Characteristics
Units
ns
ns
ns
Symbol
Parameter
VOLP
Quiet Output Dynamic
Peak VOL
VOLV
Quiet Output Dynamic
Valley VOL
VOHV
Quiet Output Dynamic
Valley VOH
Conditions
CL = 30 pF, VIH = VCC, VIL = 0V
CL = 30 pF, VIH = VCC, VIL = 0V
CL = 30 pF, VIH = VCC, VIL = 0V
VCC TA = +25°C
Units
(V) Typical
1.8 0.25
2.5 0.6
V
3.3 0.8
1.8 −0.25
2.5 −0.6
V
3.3 −0.8
1.8 1.5
2.5 1.9
V
3.3 2.2
Capacitance
Symbol
CIN
CI/O
CPD
Parameter
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
Conditions
VCC = 1.8V, 2.5V, or 3.3V, VI = 0V or VCC
VI = 0V, or VCC, VCC = 1.8V, 2.5V or 3.3V
VI = 0V or VCC, F = 10 MHz
VCC = 1.8V, 2.5V or 3.3V
TA = +25°C
6
7
20
Units
pF
pF
pF
5 www.fairchildsemi.com
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet 74VCX32245.PDF ] | |
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