Volt Asynchronous First-In/First-Out Queue Memory Configuration

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Volt Asynchronous First-In/First-Out Queue Memory Configuration

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FQV01 FQV02 FQV03 FQV04 FQV05 FlexQAsync
Volt Asynchronous First-In/First-Out Queue
Memory Configuration
8,192 4,096 2,048 1,024
Device
FQV05 FQV04 FQV03 FQV02 FQV01
Features:
Industry leading First-In/First-Out Queues 50MHz) Independent Write Read cycle time Asynchronous simultaneous read write 3.3V power supply input tolerant control data input pins output tolerant flags data output pins Fully expandable both word depth width Retransmit capability Full, Empty, Half Full flag indicators Available packages: 32-pin Plastic Lead Chip Carrier (PLCC) (0°C 70°C) Commercial operating temperature available access time 15ns above (-40°C 85°C) Industrial operating temperature available access time 15ns above Pin-to-pin compatible with (72V01, 72V02, 72V03, 72V04, 72V05)
Product Description:
HBA's FlexQAsync FIFO offers industry leading 0.25um process technology memory densities from 8,192 System designer full flexibility implementing deeper wider queues using depth width expansion features. Full Empty indicators allow easy handshaking between transmitters receivers. Asynchronous Output Enable configures tri-state data output drivers. Independent Write Read controls provide rate_ matching capability. System designer re-read data from starting position using Retransmit (RET). Retransmit allows reset read pointer initial position. Half Full flag (HALF) available single device mode width expansion mode, depth expansion mode. These FlexQAsync devices have power consumption, hence minimizing system power requirements. addition, industry standard PLCC offered save system board space. These queues ideal applications such data communication, telecommunication, graphics, multiprocessing, test equipment, network switching, etc.
3FA09A 2003 High Bandwidth Access, Inc. rights reserved. Product specifications subject change without notice.
PRELIMINARY
Page
FQV01 FQV02 FQV03 FQV04 FQV05 FlexQAsync
WRITE DATA FULL FULL RESET FQV01 FQV02 FQV03 FQV04 FQV05
READ DATA EMPTY EMPTY RETRANSMIT EXPANSION HALF HALF
EXPANSION
FIRST LOAD FIRST
Figure Device Configuration Signal Flow Diagram
Block Diagram Single Aynchronous Queue 8,192 4,096 2,048 1,024
Write Control Logic
Write Pointer
Input Register
SRAM
Output Register
Output Buffer
Read Pointer
FIRST
EMPTY
Expansion Logic Read Control Logic Flag Logic
FULL HALF
Figure Device Architecture
3FA09A 2003 High Bandwidth Access, Inc. rights reserved. Product specifications subject change without notice.
PRELIMINARY
Page
FQV01 FQV02 FQV03 FQV04 FQV05 FlexQAsync
Index
FULL
FIRST
EMPTY
HALF
PLCC (Drw J-01A; Order code: View
Figure Device Pin-Out
3FA09A 2003 High Bandwidth Access, Inc. rights reserved. Product specifications subject change without notice.
PRELIMINARY
Page
FQV01 FQV02 FQV03 FQV04 FQV05 FlexQAsync
Symbol
Name
Input/ Output
Description
Reset required initialize Write Read pointers first position queue setting low. FULL will high; EMPTY will low. Writes data into queue during high transitions queue full yet. wide input data bus. Reads data from queue during high transitions queue empty. wide output data bus.
Reset
Input
Write
Input
Data Inputs
Input
Read
Input
Data Output
Output
FIRST
First Load/ Retransmit
Input
FIRST used differently depending mode. Depth Expansion Mode, grounded indicate first load. Single Device Mode, acts retransmit.
Expansion
Input
used indicate operations different modes. When grounded, indicates operation Single Device Mode. When tied Vcc, indicates operation Depth Expansion Mode. Queue full when FULL goes low. This prohibits further writes into queue._ assertion FULL synchronous falling edge_ deassertion synchronous rising edge Queue empty when EMPTY goes low. This prohibits further reads from queue. assertion EMPTY synchronous falling edge deassertion synchronous rising edge HALF used differently depending mode. Depth Expansion Mode, connected previous device's pin. When previous device reached last location memory, this will send pulses next_ device Daisy Chain. Single Device Mode, when grounded, this indicates queue half-full. 3.3V power supply. Ground. connection.
FULL
Full Flag
Output
EMPTY
Empty Flag
Output
HALF
Expansion Half Full Flag
Output
Power Ground Connection
Table Descriptions
3FA09A 2003 High Bandwidth Access, Inc. rights reserved. Product specifications subject change without notice.
PRELIMINARY
Page

Volt Asynchronous First-In/First-Out Queue Memory Configuration

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