FQ245 FQ235 FQ225 FQ215 FQ205 5F118B D17-0 PF-01A TF-01A Q17-0 FQ245-10

FlexQTMI 5 Volt Synchronous x18 First-In/First-Out Queue Memory Configuration Device 4,096 x 18 2,048 x 18 1,024 x 18 512 x 18

FQ245 FQ245 · FQ235 FQ235 · FQ225 FQ225 · FQ215 FQ215 · FQ205 FQ205 FlexQTMI 5 Volt Synchronous x18 First-In/First-Out Queue Memory Configuration Device 4,096 x 18 2,048 x 18 1,024 x 18 512 x 18 256 x 18 FQ245 FQ245 FQ235 FQ235 FQ225 FQ225 FQ215 FQ215 FQ205 FQ205 Key Features: · · · · · · · · · · · Industry leading First-In/First-Out Queues (up to 100MHz) Independent Write and Read cycle time 5V power supply Reset clears all previously programmed configurations including Write and Read pointers. Preset for Almost Full ( PRAF ) and Almost Empty ( PRAE ) offsets values Parallel programming of PRAF and PRAE offset values Full, Empty, Almost Full, Almost Empty, and Half Full indicators Asynchronous output enable tri-state data output drivers Available packages: 64 - pin Plastic Thin Quad Flat Package (TQFP), 64 - pin Slim Thin Quad Flat Package (STQFP) (0°C to 70°C) Commercial operating temperature available (-40°C to 85°C) Industrial operating temperature available Product Description: HBA's FlexQTM I offers industry leading FIFO queuing bandwidth (up to 1.8 Gbps), with a wide range of memory configurations (from 256 x 18 to 4,096 x 18). System designer has full flexibility of implementing deeper and wider queues with Write ( WEXI and WEXO ) and Read ( REXI and REXO ) expansion features using daisy chain technique. Full, Empty, and Half Full indicators allow easy handshaking between transmitters and receivers. User programmable Almost Full and Almost Empty (Parallel) indicators allow implementation of virtual queue depths. Asynchronous Output Enable pin configures the tri-state data output drivers. Independent Write and Read controls provide ratematching capability. Data is written into the queue at the low to high transition of WCLK if WEN is asserted. Data is read from the queue at the low to high transition of RCLK if REN is asserted. Reset clears all previously programmed configurations by providing a low pulse on RST pin. In addition, Write and Read pointers to the queue are initialized to zero. These FlexQTM I devices have low power consumption, hence minimizing system power requirements. In addition, industry standard 64 - pin Plastic TQFP and 64 - pin STQFP are offered to save system board space. These queues are ideal for applications such as data communication, telecommunication, graphics, multiprocessing, test equipment, network switching, etc. 5F118B 5F118B © 2001 High Bandwidth Access, Inc. All rights reserved. Product specifications subject to change without notice. JULY 2002 Page 1 of 26 FQ245 FQ245 · FQ235 FQ235 · FQ225 FQ225 · FQ215 FQ215 · FQ205 FQ205 FlexQTMI Block Diagram of Single Synchronous Queue 4,096 x 18 / 2 ,048 x 18 / 1,024 x 18 / 512 x 18 / 256 x 18 RESET (RST ) READ CLOCK (RCLK) WRITE CLOCK (WCLK) READ ENABLE ( REN ) WRITE ENABLE ( WEN ) OUTPUT ENABLE (OE ) LOAD ( LOAD ) DATA IN (D17 - 0) FULL FLAG ( FULL ) FQ245 FQ245 FQ235 FQ235 FQ225 FQ225 FQ215 FQ215 FQ205 FQ205 DATA OUT (Q17 - 0) EMPTY FLAG ( EMPTY ) PROGRAMMABLE ( PRAF) PROGRAMMABLE (PRAE) WEXO HALF - FULL FLAG ( HALF ) REXO FIRST LOAD ( FIRST ) READ EXPANSION IN (REXI) WRITE EXPANSION IN (WEXI ) Figure 1. Single Device Configuration Signal Flow Diagram 5F118B 5F118B © 2001 High Bandwidth Access, Inc. All rights reserved. Product specifications subject to change without notice. JULY 2002 Page 2 of 26 FQ245 FQ245 · FQ235 FQ235 · FQ225 FQ225 · FQ215 FQ215 · FQ205 FQ205 FlexQTMI WCLK WEN LOAD Write Control Logic FULL / DRDY PRAF Offset Register EMPTY/ QRDY Flag Logic PRAE (WEXO) / HALF Write Pointer Input Register D17-0 D17-0 x18 SRAM Output Register Output Buffer Q 17-0 x18 OE Read Pointer FIRST WEXI WEXO /(HALF) Expansion Logic Read Control Logic Reset REXI REXO RCLK REN RST Figure 2. Device Architecture 5F118B 5F118B © 2001 High Bandwidth Access, Inc. All rights reserved. Product specifications subject to change without notice. JULY 2002 Page 3 of 26 FQ245 FQ245 · FQ235 FQ235 · FQ225 FQ225 · FQ215 FQ215 · FQ205 FQ205 OE RST Vcc GND EMPTY Q17 Q16 GND Q15 Vcc 58 57 56 55 54 53 52 51 50 49 RCLK 61 LOAD GND 62 59 D17 63 REN D16 64 FlexQTMI 60 PIN 1 43 40 39 38 37 D3 14 Q5 13 D2 Q6 36 12 Q7 11 D4 Q8 10 D5 GND 9 D6 Q9 8 D7 Q10 41 D8 42 7 Vcc 6 D9 Q11 5 D10 Q12 44 D11 45 4 GND 3 D12 Q13 2 D13 Q14 46 1 D14 48 47 D15 Vcc 25 26 27 28 29 30 FULL WEXO/HALF REXO Q0 Q1 GND 32 24 REXI Q3 23 PRAF 31 22 Vcc Q2 21 WEXI 19 WCLK 20 18 FIRST WEN 17 16 PRAE D0 34 15 GND Q4 33 D1 35 TQFP 64 (Drw No: PF-01A PF-01A; Order Code: PF) STQFP 64 (Drw No: TF-01A TF-01A; Order Code: TF) Top View Figure 3. Device Pin Out 5F118B 5F118B © 2001 High Bandwidth Access, Inc. All rights reserved. Product specifications subject to change without notice. JULY 2002 Page 4 of 26 FQ245 FQ245 · FQ235 FQ235 · FQ225 FQ225 · FQ215 FQ215 · FQ205 FQ205 FlexQTMI Pin # Pin Name Pin Symbol Input/Output Description 57 Reset RST Input Reset is required to initialize Write and Read pointers to the first position of the queue by setting RST low. FULL and PRAF will go high; EMPTY and PRAE will go low. All data outputs will go low. Previous programmed configurations will not be maintained. 19 Write Clock WCLK Input Writes data into queue during low to high transitions of WCLK if WEN is set low. 20 Write Enable WEN Input Controls write operation into queue or offset registers during low to high transition of WCLK. 59 Load Enable LOAD Input LOAD controls write/read, to/from offset registers during low to high transition of WCLK/RCLK respectively. Use in conjunction with WEN / REN . Input In single device configuration, FIRST is set low. In depth expansion configuration, FIRST is set low for the first device and set high for other devices in the daisy chain. 18 First Load 21 Write Expansion In WEXI Input In single device configuration, WEXI is set low. In depth expansion configuration, WEXI is connected to WEXO of previous device in the daisy chain. 63, 64, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 Data Inputs D17-0 D17-0 Input 18 - bit wide input data bus. 61 Read Clock RCLK Input Reads data from queue during low to high transitions of RCLK if REN is set low. 60 Read Enable REN Input Controls read operation from queue or offset registers during low to high transition of RCLK. 24 Read Expansion In REXI Input In single device configuration, REXI is set low. In depth expansion configuration, REXI is connected to REXO of previous device in the daisy chain. 58 Output Enable OE Input Setting OE low activates the data output drivers. Setting OE high deactivates the data output drivers (High-Z). 53, 52, 50, 48, 47, 45, 44, 42, 41, 39, 38, 37, 36, 32, 31, 29, 28 Data Outputs Q17-0 Q17-0 Output 18 - bit wide output data bus. 27 Read Expansion Out REXO Output In depth expansion configuration, REXO is connected to REXI of next device in the daisy chain. 25 Full Flag FULL Output Queue is full when FULL goes low during the low to high transition of WCLK. This prohibits further writes into the queue. FIRST Table 1. Pin Descriptions 5F118B 5F118B © 2001 High Bandwidth Access, Inc. All rights reserved. Product specifications subject to change without notice. JULY 2002 Page 5 of 26 FQ245 FQ245 · FQ235 FQ235 · FQ225 FQ225 · FQ215 FQ215 · FQ205 FQ205 FlexQTMI Description Pin # Pin Name Pin Symbol Input/Output 54 Empty Flag EMPTY Output Queue is empty when EMPTY goes low during the low to high transition of RCLK. This prohibits further reads from the queue. Output Queue is almost full when PRAF goes low during the low to high transition of WCLK. Default (Full-offset) or programmed offset values determine the status of PRAF . Output Queue is almost empty when PRAE goes low during the low to high transition of RCLK. Default (Empty+offset) or programmed offset values determine the status of PRAE . In single device configuration, queue is more than half full when WEXO / HALF goes low. In depth expansion configuration, WEXO / HALF is connected to WEXI of next device in the daisy chain. 23 17 Almost Full Almost Empty PRAF PRAE 26 Write Expansion Out/Half Full WEXO / HALF Output 22, 33, 43, 49, 56 Power Vcc N/A 5V power supply. 30, 35, 40, 46, 51, 55, 62 Ground GND N/A 0V Ground. Table 1. Pin Descriptions (Continued) 5F118B 5F118B © 2001 High Bandwidth Access, Inc. All rights reserved. Product specifications subject to change without notice. JULY 2002 Page 6 of 26 FQ245 FQ245 · FQ235 FQ235 · FQ225 FQ225 · FQ215 FQ215 · FQ205 FQ205 FlexQTMI Symbol Rating Com'l & Ind'l Unit VTERM Terminal Voltage with respect to GND -0.5 to + 7 TSTG Storage Temperature -55 to +125 ° IOUT DC Output Current -50 to +50 NOTES: V Absolute Max Ratings are for reference only. Permanent damage to the device may occur if extended period of operation is outside this range. Standard operation should fall within the Recommended Operating Conditions. C mA Table 2. Absolute Maximum Ratings FQ245 FQ245 FQ235 FQ235 FQ225 FQ225 FQ215 FQ215 FQ205 FQ205 Commercial Clock = 10ns, 15ns, 20ns Symbol Min. Typ. Max. Min. Typ. Max. Unit 4.5 5.0 5.5 4.5 5.0 5.5 V 0 Parameter Industrial Clock = 10ns, 15ns, 20ns 0 0 0 0 0 V Recommended Operating Conditions VCC Supply Voltage Com'l/Ind'l GND Supply Voltage VIH Input High Voltage Com'l/Ind'l 2.0 - 5.0 2.0 - 5.0 V VIL Input Low Voltage Com'l/Ind'l - - 0.8 - - 0.8 V TA Operating Temperature Commercial 0 - 70 0 - 70 ° TA Operating Temperature Industrial -40 - 85 -40 - 85 ° C C DC Electrical Characteristics ILI(1) Input Leakage Current (any input) -10 - 10 -10 - 10 µA ILO Output Leakage Current -10 - 10 -10 - 10 µA VOH Output Logic "1" Voltage, IOH=-2mA 2.4 - - 2.4 - - V VOL Output Logic "0" Voltage, IOL = 8mA - - 0.4 - - 0.4 V ICC1(2,3) Active Power Supply Current - - 20 - - 20 mA ICC2(4) Standby Current - - 5 - - 5 mA Power Consumption Table 3. DC Specifications 5F118B 5F118B © 2001 High Bandwidth Access, Inc. All rights reserved. Product specifications subject to change without notice. JULY 2002 Page 7 of 26 FQ245 FQ245 · FQ235 FQ235 · FQ225 FQ225 · FQ215 FQ215 · FQ205 FQ205 FlexQTMI Capacitance at 100MHz Ambient Temperature (25°C) Symbol Parameter CIN (2) COUT(2,4) Output Capacitance Max. Unit VIN= 0V Input Capacitance Conditions 10 pF VOUT= 0V 10 pF NOTES: 1. 2. 3. 4. Measurement with 0.4