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Details, datasheet, quote on part number:QS32X2861
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Datasheet text preview:
IDTQS32X2861 HIGH-SPEED CMOS 20-BIT BUS SWITCH WITH FLOW-THROUGH PINOUT
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH® PRODUCTS HIGH-SPEED CMOS 20-BIT BUS SWITCH WITH FLOW-THRU PINOUT
.EATURES:
· · · · Enhanced N channel FET with no inherent diode to Vcc 25 series resistors for low noise Undershoot clamp diodes on all switch and control inputs Available in 48-pin QVSOP package
IDTQS32X2861
DESCRIPTION:
The QS32X2861 provides two sets of ten high-speed CMOS TTLcompatible bus switches. The low ON resistance of the QS32X2861 allows inputs to be connected to outputs without adding propagation delay and without generating additional ground bounce noise. The QS32x2861 adds an internal 25 series termination resistor to each switch to reduce reflection noise in high-speed applications. The Bus Enable (BEn) signals turn the switches on. The QS32X2861 bus switch is ideal for switching digital buses, as well as for hotplug buffering and 5V to 3V conversion. The QS32X2861 is characterized for operation at -40°C to +85°C.
APPLICATIONS:
· · · · · · Hot-swapping, hot-docking Voltage translation (5V to 3.3V) Power conservation Capacitance reduction and isolation Bus isolation Clock gating
.UNCTIONAL BLOCK DIAGRAM
A0 B0
A9
B9
BE1
A10
B10
A19
B19
BE2
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
c 2002 Integrated Device Technology, Inc.
MARCH 2002
DSC-5727/2
IDTQS32X2861 HIGH-SPEED CMOS 20-BIT BUS SWITCH WITH FLOW-THROUGH PINOUT
INDUSTRIAL TEMPERATURE RANGE
PIN CON.IGURATION
NC A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 GND NC A10 A 11 A12 A 13 A14 A15 A16 A17 A18 A 19 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 BE1 B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 VCC BE2 B 10 B 11 B 12 B 13 B 14 B 15 B 16 B17 B 18 B 19
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
(TA = +25°C, f = 1.0MHZ, VIN = 0V, VOUT = 0V)
Pins Control Pins Quickswitch Channels (Switch OFF) Typ. 3 5 Max.(1) 5 7 Unit pF pF
NOTE: 1 . This parameter is measured at characterization but not tested.
QVSOP TOP VIEW
PIN DESCRIPTION
Pin Names A0 - A19 B0 - B19 BEn I/O I/O I/O I Bus A Bus B Bus Enable Description
.UNCTION TABLE(1)
BE1 L L H H BE2 L H L H A0 - A9 B0 - B9 B0 - B9 Z Z A10 - A19 B10 - B19 Z B10 - B19 Z Function Connect Connect Connect Disconnect
NOTE: 1 . H = HIGH Voltage Level L = LOW Voltage Level Z = High-Impedance
2
IDTQS32X2861 HIGH-SPEED CMOS 20-BIT BUS SWITCH WITH FLOW-THROUGH PINOUT
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(3) VP Parameter Input HIGH Level Input LOW Level Off-State Output Current (Hi-Z) Switch ON Resistance Pass Voltage(2) Test Conditions Guaranteed Logic HIGH for Control Pins Guaranteed Logic LOW for Control Pins 0V VOUT VCC, Switches OFF VCC = Min., VIN = 0V, ION = 30mA VCC = Min., VIN = 2.4V, ION =15mA VIN = VCC = 5V, IOUT = -5µA Min. 2 -- -- -- 15 18 3.7 Typ.(1) -- -- ±0.01 ±0.01 20 25 4 Max. -- 0.8 ±1 ±1 35 40 4.2 Unit V V µA µA V
Input LeakageCurrent (Control Inputs)(2) 0V VIN VCC
NOTES: 1 . Typical values are at VCC = 5.0V, TA = 25°C. 2 . Pass Voltage is guaranteed but not production tested. 3 . ROUT changed on March 8, 2002. See rear page for more information.
TYPICAL ON RESISTANCE vs VIN AT VCC = 5V
80
RON
(ohms)
70 60 50 40 30 20 10 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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