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Preliminary
74VCX32245 Low Voltage 32-Bit Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs (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 bidirectional 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 maintaining 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 74VCX32245GX (Note 2) Package Number BGA96A Package Description 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
(c) 2001 Fairchild Semiconductor Corporation
DS500415
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Preliminary 74VCX32245 Connection Diagram Pin Descriptions
Pin Names OEn T/Rn A0-A31 B0-B31 Description Output Enable Input (Active LOW) Transmit/Receive Input Side A Inputs or 3-STATE Outputs Side B Inputs or 3-STATE Outputs
FBGA Pin Assignments
1 A B C D E F (Top Thru View) G H B1 B3 B5 B7 B9 B11 B13 B14 B17 B19 B21 B23 B25 B27 B29 B30 2 B0 B2 B4 B6 B8 B10 B12 B15 B16 B18 B20 B22 B24 B26 B28 B31 3 T/R1 GND VCC GND GND VCC GND T/R2 T/R3 GND VCC GND GND VCC GND T/R4 4 OE1 GND VCC GND GND VCC GND OE2 OE3 GND VCC GND GND VCC GND OE4 5 A0 A2 A4 A6 A8 A10 A12 A15 A16 A18 A20 A22 A24 A26 A28 A31 6 A1 A3 A5 A7 A9 A11 A13 A14 A17 A19 A21 A23 A25 A27 A29 A30
Truth Tables
Inputs OE1 L L H Inputs OE2 L L H L H X Inputs OE3 L L H Inputs OE4 L L H T/R4 L H X Outputs Bus B24-B31 Data to Bus A24-A31 Bus A24-A31 Data to Bus B24-B31 HIGH Z State on A24-A31, B24-B31 T/R3 L H X Outputs Bus B16-B23 Data to Bus A16-A23 Bus A16-A23 Data to Bus B16-B23 HIGH Z State on A16-A23, B16-B23 T/R2 Outputs Bus B8-B15 Data to Bus A8-A15 Bus A8-A15 Data to Bus B8-B15 HIGH Z State on A8-A15, B8-B15 T/R1 L H X Outputs Bus B0-B7 Data to Bus A0-A7 Bus A0-A7 Data to Bus B0-B7 HIGH Z State on A0-A7, B0-B7
J K L M N P R T
Logic Diagram
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial (HIGH or LOW, inputs and I/O's may not float) Z = High Impedance
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Preliminary
74VCX32245
Absolute Maximum Ratings(Note 3)
Supply Voltage (VCC) DC Input Voltage (VI) Output Voltage (VO) Outputs 3-STATE Outputs Active (Note 4) DC Input Diode Current (IIK) VI < 0V DC Output Diode Current (IOK) VO < 0V VO > VCC DC Output Source/Sink Current (IOH/IOL) DC VCC or Ground Current per Supply Pin (ICC or Ground) Storage Temperature Range (TSTG)
-0.5V to +4.6V -0.5V to +4.6V -0.5V to +4.6V -0.5 to VCC + 0.5V -50 mA -50 mA +50 mA 50 mA 100 mA -65C to +150C
Recommended Operating Conditions (Note 5)
Power Supply Operating Data Retention Only Input Voltage Output Voltage (VO) Output in Active States Output in 3-STATE Output Current in IOH/IOL VCC = 3.0V to 3.6V VCC = 2.3V to 2.7V VCC = 1.65V to 2.3V Free Air Operating Temperature (TA) Minimum Input Edge Rate (t/V) VIN = 0.8V to 2.0V, VCC = 3.0V 10 ns/V
Note 3: The "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the "Electrical Characteristics" table are not guaranteed at the Absolute Maximum Ratings. The Recommended Operating Conditions tables will define the conditions for actual device operation. Note 4: IO Absolute Maximum Rating must be observed. Note 5: Floating or unused pin (inputs or I/O's) must be held HIGH or LOW.
1.65V to 3.6V 1.2V to 3.6V
-0.3V to 3.6V
0V to VCC 0.0V to 3.6V
24 mA 18 mA 6 mA -40C to +85C
DC Electrical Characteristics
Symbol VIH VIL VOH Parameter HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage
(2.7V < VCC 3.6V)
Conditions VCC (V) 2.7-3.6 2.7-3.6 Min 2.0 0.8 VCC - 0.2 2.2 2.4 2.2 0.2 0.4 0.4 0.55 5.0 10 10 40 40 750 A A A A A V V Max Units V V
IOH = -100 A IOH = -12 mA IOH = -18 mA IOH = -24 mA
2.7-3.6 2.7 3.0 3.0 2.7-3.6 2.7 3.0 3.0 2.7-3.6 2.7-3.6 0 2.7-3.6 2.7-3.6 2.7-3.6
VOL
LOW Level Output Voltage
IOL = 100 A IOL = 12 mA IOL = 18 mA IOL = 24 mA
II IOZ IOFF ICC ICC
Input Leakage Current 3-STATE Output Leakage Power Off Leakage Current Quiescent Supply Current Increase in ICC per Input
0V VI 3.6V 0V VO 3.6V VI = V IH or VIL 0V (VI, VO) 3.6V VI = V CC or GND VCC (VI, VO) 3.6V (Note 6) VIH = VCC - 0.6V
Note 6: Outputs disabled or 3-STATE only.
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Preliminary 74VCX32245 DC Electrical Characteristics (2.3V VCC 2.7V)
Symbol VIH VIL VOH Parameter HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage IOH = -100 A IOH = -6 mA IOH = -12 mA IOH = -18 mA VOL LOW Level Output Voltage IOL = 100 A IOL = 12 mA IOL = 18 mA II IOZ IOFF ICC Input Leakage Current 3-STATE Output Leakage Power Off Leakage Current Quiescent Supply Current 0 VI 3.6V 0 VO 3.6V VI = VIH or VIL 0 (VI, VO) 3.6V VI = VCC or GND VCC (VI, VO) 3.6V (Note 7)
Note 7: Outputs disabled or 3-STATE only.
Conditions
VCC (V) 2.3-2.7 2.3-2.7 2.3-2.7 2.3 2.3 2.3 2.3-2.7 2.3 2.3 2.3-2.7 2.3-2.7 0 2.3-2.7 2.3-2.7
Min 1.6
Max
Units V
0.7 VCC - 0.2 2.0 1.8 1.7 0.2 0.4 0.6 5.0 10 10 40 40
V
V
V A A A A
DC Electrical Characteristics (1.65V VCC < 2.3V)
Symbol VIH VIL VOH VOL II IOZ IOFF ICC Parameter HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage LOW Level Output Voltage Input Leakage Current 3-STATE Output Leakage Power Off Leakage Current Quiescent Supply Current IOH = -100 A IOH = -6 mA IOL = 100 A IOL = 6 mA 0 VI 3.6V 0 VO 3.6V VI = VIH or VIL 0 (VI, VO) 3.6V VI = VCC or GND VCC (VI, VO) 3.6V (Note 8)
Note 8: Outputs disabled or 3-STATE only.
Conditions
VCC (V) 1.65-2.3 1.65-2.3 1.65-2.3 1.65 1.65-2.3 1.65 1.65-2.3 1.65-2.3 0 1.65-2.3 1.65-2.3
Min 0.65 x VCC
Max
Units V
0.35 x VCC VCC - 0.2 1.25 0.2 0.3 5.0 10 10 40 40
V V V A A A A
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Preliminary
74VCX32245
AC Electrical Characteristics
Symbol Parameter
(Note 9)
TA = -40C to +85C, CL = 30 pF, RL = 500 VCC = 3.3V 0.3V Min Max 2.5 3.8 3.7 0.8 0.8 0.8 VCC = 2.5 0.2V Min 1.0 1.0 1.0 Max 3.0 4.9 4.2 VCC = 1.8V 0.15V Min 1.5 1.5 1.5 Max 6.0 9.3 7.6 ns ns ns Units
tPHL, tPLH tPZL, tPZH tPLZ, tPHZ
Prop Delay Output Enable Time Output Disable Time
Note 9: For CL = 50pF, add approximately 300ps to the AC maximum specification.
Dynamic Switching Characteristics
Symbol VOLP Parameter Quiet Output Dynamic Peak VOL VOLV Quiet Output Dynamic Valley VOL VOHV Quiet Output Dynamic Valley VOH CL = 30 pF, VIH = VCC, VIL = 0V CL = 30 pF, VIH = VCC, VIL = 0V Conditions CL = 30 pF, VIH = VCC, VIL = 0V VCC (V) 1.8 2.5 3.3 1.8 2.5 3.3 1.8 2.5 3.3 TA = +25C Typical 0.25 0.6 0.8 -0.25 -0.6 -0.8 1.5 1.9 2.2 V V V Units
Capacitance
Symbol CIN CI/O CPD Input Capacitance Output Capacitance Power Dissipation Capacitance Parameter 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 = +25C 6 7 20 Units pF pF pF
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Preliminary 74VCX32245 AC Loading and Waveforms
FIGURE 1. AC Test Circuit TEST tPLH, tPHL tPZL, tPLZ tPZH, tPHZ SWITCH Open 6V at VCC = 3.3 0.3V; VCC x 2 at VCC = 2.5 0.2V; 1.8V 0.15V GND
FIGURE 2. Waveform for Inverting and Non-inverting Functions
FIGURE 3. 3-STATE Output High Enable and Disable Times for Low Voltage Logic
FIGURE 4. 3-STATE Output Low Enable and Disable Times for Low Voltage Logic
Symbol Vmi Vmo VX VY
VCC 3.3V 0.3V 1.5V 1.5V VOL + 0.3V VOH - 0.3V 2.5V 0.2V VCC/2 VCC/2 VOL + 0.15V VOH - 0.15V 1.8V 0.15V VCC/2 VCC/2 VOL + 0.15V VOH - 0.15V
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Preliminary
74VCX32245 Low Voltage 32-Bit Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs (Preliminary)
Physical Dimensions inches (millimeters) unless otherwise noted
96-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide Package Number BGA96A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 7 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com
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