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IDT72805LB Datasheet

  • IDT72805LB

  • CMOS DUAL SyncFIFO?

  • 334.59KB

  • IDT

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CMOS DUAL SyncFIFO鈩?/div>
DUAL 256 x 18, DUAL 512 x 18,
DUAL 1,024 x 18, DUAL 2,048 x 18
and DUAL 4,096 x 18
IDT72805LB
IDT72815LB
IDT72825LB
IDT72835LB
IDT72845LB
FEATURES:
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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The IDT72805LB is equivalent to two IDT72205LB 256 x 18 FIFOs
The IDT72815LB is equivalent to two IDT72215LB 512 x 18 FIFOs
The IDT72825LB is equivalent to two IDT72225LB 1,024 x 18 FIFOs
The IDT72835LB is equivalent to two IDT72235LB 2,048 x 18 FIFOs
The IDT72845LB is equivalent to two IDT72245LB 4,096 x 18 FIFOs
Offers optimal combination of large capacity (8K), high speed,
design flexibility, and small footprint
Ideal for the following applications:
- Network switching
- Two level prioritization of parallel data
- Bidirectional data transfer
- Bus-matching between 18-bit and 36-bit data paths
- Width expansion to 36-bit per package
- Depth expansion to 8,192 words per package
10ns read/write cycle time, 6.5ns access time
IDT Standard or First Word Fall Through timing
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Single or double register-buffered Empty and Full Flags
Easily expandable in depth and width
Asynchronous or coincident Read and Write clocks
Asynchronous or synchronous programmable Almost-Empty
and Almost-Full flags with default settings
Half-Full flag capability
Output Enable puts output data bus in high-impedance state
High-performance submicron CMOS technology
Available in the 128-pin Thin Quad Flatpack (TQFP). Also
available for the IDT72805LB/72815LB/72825LB, in the 121-lead,
16 x 16 mm plastic Ball Grid Array (PBGA)
Industrial temperature range (鈥?0擄C to +85擄C) is available
擄
擄
DESCRIPTION:
The IDT72805LB/72815LB/72825LB/72835LB/72845LB are dual 18-bit-wide
synchronous (clocked) First-in, First-out (FIFO) memories. One dual IDT72805LB/
72815LB/72825LB/72835LB/72845LB device is functionally equivalent to two
FUNCTIONAL BLOCK DIAGRAM
FFA/IRA
WCLKA
WENA
HFA/(WXOA)
PAEA
EFA/
ORA
WCLKB
WENB
PAFA
DA
0
-DA
17
LDA
DB0-DB17
LDB
INPUT
REGISTER
OFFSET
REGISTER
INPUT
REGISTER
OFFSET
REGISTER
FFB/IRB
PAFB
EFB/ORB
PAEB
HFB/(WXOB)
WRITE
CONTROL
LOGIC
WRITE
POINTER
FLA
WXIA
(HFA)/WXOA
RXIA
RXOA
RSA
RAM
ARRAY
256 x 18
512 x 18
1,024 x 18
2,048 x 18
4,096 x 18
FLAG
LOGIC
WRITE
CONTROL
LOGIC
READ
POINTER
READ
CONTROL
LOGIC
WRITE
POINTER
RAM
ARRAY
256 x 18
512 x 18
1,024 x 18
2,048 x 18
4,096 x 18
FLAG
LOGIC
READ
POINTER
READ
CONTROL
LOGIC
EXPANSION
LOGIC
OUTPUT
REGISTER
EXPANSION
LOGIC
OUTPUT
REGISTER
RESET
LOGIC
RESET
LOGIC
OEA
QA
0
-QA
17
RCLKA
RENA
RSB
RXOB
RXIB
(HFB)/WXOB
WXIB
FLB
OEB
QB
0
-QB
17
RCLKB
RENB
3139 drw 01
IDT and the IDT logo are registered trademarks. The SyncFIFO is a trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
1
錚?003
Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
FEBRUARY 2003
DSC-3139/4

IDT72805LB PDF文件相關(guān)型號

IDT72805LB10BG,IDT72805LB10BGI,IDT72805LB10PF,IDT72805LB10PFI,IDT72805LB15BG,IDT72805LB15BGI,IDT72805LB15PF,IDT72805LB15PFI,IDT72805LB20BG,IDT72805LB20BGI,IDT72805LB20PF,IDT72805LB20PFI,IDT72805LB25BG,IDT72805LB35BG,IDT72815LB,IDT72815LB10BG,IDT72815LB10BGI,IDT72815LB10PF,IDT72815LB10PFI,IDT72815LB15BG,IDT72815LB15BGI,IDT72815LB15PF,IDT72815LB15PFI,IDT72815LB20BG,IDT72815LB20BGI,IDT72815LB20PF,IDT72815LB20PFI,IDT72815LB25BG,IDT72815LB35BG,IDT72825LB,IDT72825LB10BG,IDT72825LB10BGI,IDT72825LB10PF,IDT72825LB10PFI,IDT72825LB15BG,IDT72825LB15BGI,IDT72825LB15PF,IDT72825LB15PFI,IDT72825LB20BG,IDT72825LB20BGI,IDT72825LB20PF,IDT72825LB20PFI,IDT72825LB25BG,IDT72825LB35BG,IDT72835LB,IDT72835LB10BG,IDT72835LB10BGI,IDT72835LB10PF,IDT72835LB10PFI,IDT72835LB15BG,IDT72835LB15BGI,IDT72835LB15PF,IDT72835LB15PFI,IDT72835LB20BG,IDT72835LB20BGI,IDT72835LB20PF,IDT72835LB20PFI,IDT72845LB,IDT72845LB10BG,IDT72845LB10BGI,IDT72845LB10PF,IDT72845LB10PFI,IDT72845LB15BG,IDT72845LB15BGI,IDT72845LB15PF,IDT72845LB15PFI,IDT72845LB20BG,IDT72845LB20BGI,IDT72845LB20PF,IDT72845LB20PFI

IDT72805LB相關(guān)型號PDF文件下載

  • 型號
    版本
    描述
    廠商
    下載
  • 英文版
    HIGH-SPEED 8K x 8 DUAL-PORT STATIC RAM
    IDT
  • 英文版
    HIGH-SPEED 8K x 8 DUAL-PORT STATIC RAM
    IDT [Integ...
  • 英文版
    x8 Dual-Port SRAM
    IDT
  • 英文版
    HIGH-SPEED 128K x 8 DUAL-PORT STATIC RAM
    IDT
  • 英文版
    HIGH-SPEED 128K x 8 DUAL-PORT STATIC RAM
    IDT [Integrated...
  • 英文版
    HIGH-SPEED 8K x 9 DUAL-PORT STATIC RAM
    IDT
  • 英文版
    HIGH-SPEED 8K x 9 DUAL-PORT STATIC RAM
    IDT [Integrated...
  • 英文版
    HIGH-SPEED 16K x 9 DUAL-PORT STATIC RAM
    IDT
  • 英文版
    HIGH-SPEED 16K x 9 DUAL-PORT STATIC RAM
    IDT [Integrated...
  • 英文版
    HIGH-SPEED 4K x 16 DUAL-PORT STATIC RAM
    IDT
  • 英文版
    HIGH-SPEED 4K x 16 DUAL-PORT STATIC RAM
    IDT [Integrated...
  • 英文版
    HIGH-SPEED 8K x 16 DUAL-PORT STATIC RAM
    IDT
  • 英文版
    HIGH-SPEED 8K x 16 DUAL-PORT STATIC RAM
    IDT [Integrated...
  • 英文版
    x16 Dual-Port SRAM
    IDT
  • 英文版
    HIGH-SPEED 32K x 16 DUAL-PORT STATIC RAM
    IDT
  • 英文版
    HIGH-SPEED 32K x 16 DUAL-PORT STATIC RAM
    IDT [Integrated...
  • 英文版
    HIGH-SPEED 32K x 18 DUAL-PORT STATIC RAM
    IDT
  • 英文版
    HIGH-SPEED 2K x 8 FourPort STATIC RAM
    IDT
  • 英文版
    HIGH-SPEED 2K x 8 FourPort STATIC RAM
    IDT [Integrated...
  • 英文版
    HIGH-SPEED 1K x 8 DUAL-PORT STATIC RAM
    IDT

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