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PI5X1018
18-Bit, 10-Port Crossbar Switch
Product Features
Full 10-way crossbar Independent controls for all ports Multiple parts can be used for wider data paths Near-zero propagation delay 25 switches connect input to outputs Direct bus connection when switches are ON Ultra Low Quiescent Power (1mA Typical) Packages available: - 256-pin BGA (NA256)
Product Description
Pericoms PI5X series of high density logic circuits are produced using the Companys advanced submicron CMOS technology to achieve industry leading performance. The PI5X1018 is an 18-bit, 10-port crossbar switch designed with a low ON resistance allowing inputs to be connected directly to outputs. The crossbar creates a low propagation delay and adds low additional ground bounce noise. Switches are turned ON in groups of 18 allowing any combination of connected ports. An additional bias voltage pin, VBIAS, permits control of internal pull-up resistors that can be used for pin termination. Several of these devices can be grouped together for wider data and control paths.
Applications
Digital network switching: - Hubs & Routers - ATM Switch Systems - Backbone Access Routing - Add Drop Multiplexing Multiprocessor systems switching Large memory bus switching Video signal routing & Image processing Telecommunications switching RAID systems bus switching
Logic Block Diagram
Truth Table
Function Port N - Port M connected* Port N - Port M disconnected* Pin SN-M SN-M State Low High
* Specify low numbered port first
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PS8365E
08/24/99
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PI5X1018 18-Bit, 10-Port Crossbar Switch
Product Pin Description
Pin Name A0A17 through J0J17 SN - M De s cription 180 Pins total. Dedicated to ten 18- bit ports. Contains internal pull- up resistor controlled by pin VBIAS. 45 Pins total. Dedicated to port switching. Where N is from A to I and M is from B to J and N< M. Also, contains internal pull- up resistor controlled by pin VBIAS. Adjusts internal pull- up resistance value for all pins A- J & SN- M; (default value with internal bias voltage of 2.9V is around 20kW). For VBIAS = 0V, pull- up resistor value is less than 5kW. For VBIAS = 4.1V, pull- up resistor value is greater than 100kW. 23 Pins dedicated to Power (VDD) and Ground (VSS) 6 Pins are No Connect
VBIAS VDD & VSS NC
Product Pinout by Name
Name A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 B17 Ball Pad B 8 D1 E 1 E 2 F1 F2 F3 G 1 G 2 C20 U10 Y11 W 11 V11 U11 Y12 W 12 V12 A 8 G 3 H1 H2 J1 J2 K 1 K 2 L1 C19 U12 U13 V13 W 13 Y13 U14 V14 W 14 Nam e C 0 C 1 C 2 C 3 C 4 C 5 C 6 C 7 C 8 C 9 C10 C11 C12 C13 C14 C15 C16 C17 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7 D 8 D 9 D10 D11 D12 D13 D14 D15 D16 D17 Ball Pad D7 M 1 L2 M 2 N1 N2 P1 P2 P3 C 18 Y14 U 15 V15 W 15 Y15 U 16 V16 W 16 C7 P4 R1 R2 R3 R4 T1 T2 T3 C 17 Y16 Y17 W 17 Y18 W 18 Y19 W 19 W 20 Ne am E 0 E 1 E 2 E 3 E 4 E 5 E 6 E 7 E 8 E 9 E10 E11 E12 E13 E14 E15 E16 E17 F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17
Ball Pad B7 T4 U1 U2 U3 U4 V1 V2 V3 B19 V 17 V 18 V 19 V 20 U 17 U 18 U 19 U 20 A7 V4 W 1 W 2 W 3 W 4 Y3 Y4 U5 B18 T17 T18 T19 T20 R17 R18 R19 R20
Nam e G 0 G 1 G 2 G 3 G 4 G 5 G 6 G 7 G 8 G 9 G10 G11 G12 G13 G14 G15 G16 G17 H 0 H 1 H 2 H 3 H 4 H 5 H 6 H 7 H 8 H 9 H10 H11 H12 H13 H14 H15 H16 H17
Ball Pad D6 V5 W 5 Y5 U6 V6 W 6 Y6 U7 A19 P17 P18 P19 P20 N19 N20 M 19 M 20 C6 V7 W 7 Y7 U8 V8 W 8 Y8 U9 A18 L19 L20 K20 K19 J20 J19 H20 H19
Nam e I0 I1 I2 I3 I4 I5 I6 I7 I8 I9 I10 I11 I12 I13 I14 I15 I16 I17 J0 J1 J2 J3 J4 J5 J6 J7 J8 J9 J10 J11 J12 J13 J14 J15 J16 J17
Ball Pad B6 V 9 W 9 Y 9 Y10 W 10 V10 D10 C 10 A17 G17 G18 G20 G19 F17 F18 F19 F20 A 6 B10 A10 D 9 C9 B9 A 9 D 8 C8 B17 E17 E18 E19 E20 D17 D18 D19 D20
Ne am Sa-b Sa-c Sa-d Sa-e Sa-f Sa-g Sa-h Sa-i Sa-j Sb-c Sb-d Sb-e Sb-f Sb-g Sb-h Sb-i Sb-j Sc-d Sc-e Sc-f Sc-g Sc-h Sc-i Sc-j Sd-e Sd-f Sd-g Sd-h Sd-i Sd-j Se-f Se-g Se-h Se-i Se-j Sf-g
Ball Pad A 16 B16 C16 D16 A 15 B15 C15 D15 A 14 B14 C14 D14 A 13 B13 C13 D13 A 12 B12 C12 D12 A 11 B11 C11 D11 D 5 C5 B5 A 5 A 4 B4 C4 D 4 E4 H 4 H 3 A 3
Name Sf-h Sf-i Sf-j Sg-h Sg-i Sg-j Sh-i Sh-j Si-j V -Bias VD D VD D VD D VD D VD D VD D VD D VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS NC NC NC
Ball Pad B3 C 3 D3 E3 B2 C 2 D2 B1 C 1 N4 F4 G4 H 17 H 18 N 17 N 18 N3 J17 J18 J3 J4 K 17 K 18 K3 K4 L17 L18 L3 L4 M 17 M 18 M 3 M 4 A1 A2 A 20
Nam e N C N C N C N C
Ball Pad B20 Y1 Y2 Y20
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PS8365E
08/24/99
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PI5X1018 18-Bit, 10-Port Crossbar Switch
Product Pinout [BGA256 Package]
$ % & ' ( ) * + . / 0 1 3 5 7 8 9 : < ) ( ' & % $ - - - - - - + ) & * ( % 1& 1& $
1& 1& 6IJ 6GL 6GK - 6KM 6JL 6IK 6GM 6GJ , 6LM 6JM 6IL 6HI 6GI + $ 6KL 6IM 6HJ 6GH * $ $ $ % % % % & & & ' ' ( ( ) $ 6JK 6HK $ $ $ 9'' % 9''
- 6FJ 6EM 6EI 6DM 6DI 6DE , - 6FK 6FG 6EJ 6EF 6DJ 6DF - , , 6FL 6FH 6EK 6EG 6DK 6DG '
6FM 6FI 6EL 6EH 6DL 6DH - - - - - - - - , , , , , , , ,
% 6HM 6HL % 966 966 % 966 966 & 966 966 & 966 966 & 9'' & ' ' ( ( ) & ' ' ( ( ) )
9%LDV
9'' 9'' + +
966 966 + + 966 966 + +
NA256
966 966 + + 966 966 * *
9'' 9'' * *
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1& 1&
PI5X1018 Pin Assignment (Top View)
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PS8365E
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Capacitance (TA = 25C, f = 1 MHz)
Parameters(5) Description CIN COFF CON Control Input Capacitance Port Pin Capacitance, Port Disconnected Port Pin Capacitance, Port Connected to One Other Port Test Conditions VIN = 0V VIN = 0V VIN = 0V Typ. 4 27 52 Units pF pF pF
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PI5X1018 18-Bit, 10-Port Crossbar Switch
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ........................................................ -65C to +150C Ambient Temperature with Power Applied ....................... -40C to +85C Supply Voltage to Ground Potential (Inputs & Vcc Only) ..... -0.5V to +7.0V Supply Voltage to Ground Potential (Outputs & D/O Only) . -0.5V to +7.0V DC Input Voltage ................................................................ -0.5V to +7.0V DC Output Current ........................................................................... 120mA Power Dissipation ............................................................................... 0.5W Note: Stresses greater than those listed under 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.
DC Electrical Characteristics (Over the Operating Range, TA = 40C to +85C, VCC = 4.5V to 5.5V)
Parame te rs VIH VIL IIH IIL IOZH IOZL VIK IOS VH De s cription Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current High Impedence Output Current Low Impedence Output Current Clamp Diode Voltage Short Circuit Current(3) Input Hysteresis at Control Pins VCC = Min., VIN = 0.0V, ION = 48mA RON Switch On Resistance(4) VCC = Min., VIN = 2.4V, ION = 15mA Bits 0- 9 All other bits Bits 0- 9 All other bits Te s t Conditions (1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max., VIN = VCC, VBIAS = OPEN VCC = Max., VIN = GND, VBIAS = OPEN 0 N, M VCC, VBIAS = OPEN VIN = 0V, VBIAS = OPEN VCC = Min., IIN = -18mA N(M) = 0V, M(N) = VCC 100 150 20 25 30 40 M in. 2.0 - 0.5 0.8 400 400 1 400 - 1.8 V mA mV Typ.(2) M ax. Units V
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, TA = 25C ambient and maximum loading. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. Measured by the voltage drop between N and M pin at indicated current through the switch. ON resistance is determined by the lower of the voltages on the two (N,M) pins. 5. This parameter is guaranteed by design. 6. Where N is a pin of any port and M is a pin of any other port.
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PS8365E 08/24/99
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PI5X1018 18-Bit, 10-Port Crossbar Switch
Power Supply Characteristics
Parameters Description ICC ICC Quiescent Power Supply Current Supply Current per Input @ TTL HIGH Test Conditions(1) VCC = Max. VCC = Max. VIN = OPEN or VCC VIN = 3.4V
(3)
Min.
Typ.(2)
Max. 1.0 2.5
Units mA mA
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at VCC = 5.0V, +25C ambient. 3. Per TTL driven input (VIN = 3.4V, control inputs only); port A - J pins do not contribute to ICC. 4. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified frequency. The port A - J inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design.
Switching Characteristics over Operating Range
Parame te rs tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ D e s cription Propagation Delay(2,3,4) N0 to M0, N0 to M0 N9 to M9, N9 to M9 Propagation Delay(2,3,5) NX to MX, NX to MX Bits 1 through 8 & 10 thru 17 Bus Enable Time SN- M to NX or MX
(4,5)
Conditions
PI5X1018 (Com) M in. 3/4 Typ. 1.0 M ax. 1.25
Units
Load = CL = 20pF 3/4 3/4 2.0 ns 1.5 See Note 1 1.5 3/4 5.0 3/4 6.0
Bus Enable Time(4,5) SN- M to NX or MX
Notes: 1. See test circuit and waveforms. 2. This parameter is guaranteed but not tested on Propagation Delays. 3. The bus switch contributes no propagational delay other than the RC delay of the ON resistance of the switch and the load capacitance. Propagational delay of the bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side. 4. Where N0 is Bit 0 of any port N = A - J and M0 is Bit 0 of any other port. 5. Where NX is Bit X (X = 0 - 17) of any port N = A - J and NX is Bit X (X = 0 - 17) of any other port.
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PS8365E
08/24/99
Enable and Disable Timing
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PI5X1018 18-Bit, 10-Port Crossbar Switch
Test Circuits
Switch Position
Te s t Disable LO W Enable LO W
7V
Switch Closed O pen
VCC
tpd
500 VIN Pulse Generator RT D.U.T. 50pF CL 500 VOUT
Definitions: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator
Propagation Delay
0.5 ns Input > 2.4V 0.5 ns
< 0.55V
Output > 2.0V
< 0.8V
< 1.25 ns - Fast Path < 2 ns - Others
< 1.25 ns - Fast Path < 2 ns - Others
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PS8365E
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30
2
PIN #1 CORNER
27.00 0.15
SEATING PLANE 0.15 C
27.00 0.15
24.00 0.1
4 x 45 CHAMFER (4X) 8.00
1.44
1.27 BSC
Ordering Information
Part PI5X1018NA Pin - Package 256 - BGA (NA256) Dime ns ions 27mm x 27mm
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PI5X1018 18-Bit, 10-Port Crossbar Switch
256-Pin Ball Grid Array Package (27 x 27mm)
A
20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H J K L M N P R T U V W Y 256 x o0.75 0.15 0.30 S C A S B S 0.10 S C
o1.0 (3X)
C 0.60 0.1
B
0.56 0.05 1.17 0.1 2.33 Min. / 3.50Max.
Pericom Semiconductor Corporation 2380 Bering Drive * San Jose, CA 95131 * 1-800-435-2336 * Fax (408) 435-1100 * http://www.pericom.com
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PS8365E 08/24/99

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