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Part: QS32X383
Category:
Logic
-> Bus Switches
Description: 20-bit Bus Switch/exchange
Company: Integrated Device Technology, Inc.
Datasheet: Download QS32X383 datasheet File size : 188 kB
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Datasheet text preview:
IDTQS32X383 HIGH-SPEED CMOS 20-BIT BUS EXCHANGE SWITCH
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH® PRODUCTS HIGH-SPEED CMOS 20-BIT BUS EXCHANGE SWITCH
FEATURES:
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IDTQS32X383
DESCRIPTION:
Enhanced N channel FET with no inherent diode to Vcc 5 bidirectional switches connect inputs to outputs Zero propagation delay, zero ground bounce Undershoot clamp diodes on all switch and control inputs 20-bit double-width format Bus exchange allows nibble swap Zero ground bounce in flow-through mode TTL-compatible control inputs Available in 48-pin QVSOP package
The QS32X383 provides two sets of ten high-speed CMOS TTLcompatible bus switches. The low ON resistance (5) of the QS32X383 allows inputs to be connected to outputs without adding propagation delay and without generating additional ground bounce noise. The Bus Enable (BE) signal turns the switches on. The Bus Exchange (BX) signal provides nibble swap of the AB and CD pairs of signals. This exchange configuration allows byte swapping of buses in systems. It can also be used as a 10-wide 2-to-1 multiplexer and to create low delay barrel shifters, etc. The QS32X383 is characterized for operation at -40°C to +85°C.
APPLICATIONS:
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Crossbar switching Resource sharing Hot-docking Voltage translation (5V to 3.3V)
FUNCTIONAL BLOCK DIAGRAM
A0 C0 A5 C5
B0
D0
B5
D5
A4
C4
A9
C9
B4
D4
B9
D9
BXA BEA BXB BEB
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 1999 Integrated Device Technology, Inc.
NOVEMBER 1999
1
DSC-5572/1
IDTQS32X383 HIGH-SPEED CMOS 20-BIT BUS EXCHANGE SWITCH
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
BEA C0 A0 B0 D0 C1 A1 B1 D1 C2 A2 GND BEB C5 A5 B5 D5 C6 A6 B6 D6 C7 A7 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 VCC D4 B4 A4 C4 D3 B3 A3 C3 D2 B2 BXA VCC D9 B9 A9 C9 D8 B8 A8 C8 D7 B7 BXB
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM(2) VTERM(3) VTERM(3) VAC IOUT PMAX TSTG Description Supply Voltage to Ground DC Switch Voltage Vs DC Input Voltage VIN AC Input Voltage (pulse width 20ns) DC Output Current Maximum Power Dissipation (TA = 85°C) Storage Temperature Max 0.5 to +7 0.5 to +7 0.5 to +7 3 120 0.5 65 to +150 Unit V V V V mA W °C
NOTE: 1 . Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2 . Vcc terminals. 3 . All terminals except Vcc.
CAPACITANCE
Pins Control Pins
(TA = +25°C, f = 1.0MHZ, VIN = 0V, VOUT = 0V)
Typ. 3 5 Max.(1) 5 7 Unit pF pF
Quickswitch Channels (Switch OFF)
NOTE: 1 . This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names Ax, Bx Cx, Dx BEx BXx I/O I/O I/O I I Buses A, B Buses C, D Bus Switch Enable Bus Exchange Description
QVSOP TOP VIEW
FUNCTION TABLE(1)
BEA H L L BEB H L L BXA X L H BXB X L H A0 - A4 Z C0 - C4 D0 - D4 A5 - A9 Z C5 - C9 D5 - D9 B0 - B4 Z D0 - D4 C0 - C4 B5 - B9 Z D5 - D9 C5 - C9 Function Disconnect Connect Exchange Function Disconnect Connect Exchange
NOTE: 1 . H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High-Impedance
2
IDTQS32X383 HIGH-SPEED CMOS 20-BIT BUS EXCHANGE SWITCH
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Industrial: TA = 40°C to +85°C, VCC = 5.0V ±5%
Symbol VIH VIL IIN IO Z RON VP Parameter Input HIGH Level Input LOW Level Input LeakageCurrent (Control Inputs) Off-State Output Current (Hi-Z) Switch ON Resistance(2) Pass Voltage(3) Test Conditions Guaranteed Logic HIGH for Control Pins Guaranteed Logic LOW for Control Pins 0V VIN VCC. Control Inputs 0V VOUT VCC, Switches OFF VCC = Min., VIN = 0V, ION = 30mA VCC = Min., VIN = 2.4V, ION =15mA VCC = 5V, IOUT = -5µA Min. 2 -- -- -- -- -- 3.7 Typ.(1) -- -- 0.01 0.01 6 12 4 Max. -- 0.8 ±1 ±1 8 17 4.2 Unit V V µA µA V
NOTES: 1 . Typical values are at VCC = 5.0V, TA = 25°C. 2 . Max value of RON is guaranteed but not production tested. 3 . Pass Voltage is guaranteed but not production tested.
TYPICAL ON RESISTANCE vs VIN AT VCC = 5V
RON
(ohms)
16 14 12 10 8 6 4 2 0 0 .0 0 .5 1 .0 1 .5 2 .0 2 .5 3 .0 3 .5
V IN (Volts)
3
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