Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

CY7C43646-10AC Datasheet(PDF) 4 Page - Cypress Semiconductor

Part # CY7C43646-10AC
Description  1K/4K/16K x36/x18/x2 Tri Bus FIFO
Download  39 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY7C43646-10AC Datasheet(HTML) 4 Page - Cypress Semiconductor

  CY7C43646-10AC Datasheet HTML 1Page - Cypress Semiconductor CY7C43646-10AC Datasheet HTML 2Page - Cypress Semiconductor CY7C43646-10AC Datasheet HTML 3Page - Cypress Semiconductor CY7C43646-10AC Datasheet HTML 4Page - Cypress Semiconductor CY7C43646-10AC Datasheet HTML 5Page - Cypress Semiconductor CY7C43646-10AC Datasheet HTML 6Page - Cypress Semiconductor CY7C43646-10AC Datasheet HTML 7Page - Cypress Semiconductor CY7C43646-10AC Datasheet HTML 8Page - Cypress Semiconductor CY7C43646-10AC Datasheet HTML 9Page - Cypress Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 39 page
background image
CY7C43646
CY7C43666
CY7C43686
Document #: 38-06023 Rev. *C
Page 4 of 39
BE/FWFT
Big Endian/
First-Word
Fall-Through
Select
I
This is a dual-purpose pin. During Master Reset, a HIGH on BE will select Big Endian
operation. In this case, depending on the bus size, the most significant byte or word
on Port A is transferred to Port B first for A-to-B data flow. For data flowing from Port
C to Port A, the first word/byte written to Port C will come out as the most significant
word/byte on Port A. On the other hand a LOW on BE will select Little Endian operation.
In this case, the least significant byte or word on Port A is transferred to Port B first for
A to B data flow. Similarly, the first word/byte written into Port C will come out as the
least significant word/byte on Port A for C-to-A data flow. After Master Reset, this pin
selects the timing mode. A HIGH on FWFT selects CY Standard Mode, a LOW selects
First-Word Fall-Through Mode. Once the timing mode has been selected, the level on
this pin must be static throughout device operation.
C0–17
Port B Data
I
18-bit input data port for port C.
CLKA
Port A Clock
I
CLKA is a continuous clock that synchronizes all data transfers through Port A
and can be asynchronous or coincident to CLKB. FFA/IRA, EFA/ORA, AFA, and AEA
are all synchronized to the LOW-to-HIGH transition of CLKA.
CLKB
Port B Clock
I
CLKB is a continuous clock that synchronizes all data transfers through Port B
and can be asynchronous or coincident to CLKA. EFB/ORB and AEB are all synchro-
nized to the LOW-to-HIGH transition of CLKB.
CLKC
Port C Clock
I
CLKC is a continuous clock that synchronizes all data transfers through Port C
and can be asynchronous or coincident to CLKA. FFC/IRC, and AFC are all synchro-
nized to the LOW-to-HIGH transition of CLKC.
CSA
Port A Chip
Select
I
CSA must be LOW to enable a LOW-to HIGH transition of CLKA to read or write
on Port A. The A0−35 outputs are in the high-impedance state when CSA is HIGH.
CSB
Port B Chip
Select
I
CSB must be LOW to enable a LOW-to HIGH transition of CLKB to read or write
on Port B. The B0–17 outputs are in the high-impedance state when CSB is HIGH.
EFA/ORA
Port A
Empty/Output
Ready Flag
O
This is a dual-function pin. In the CY Standard Mode, the EFA function is selected.
EFA indicates whether or not the FIFO2 memory is empty. In the FWFT Mode, the ORA
function is selected. ORA indicates the presence of valid data on A0−35 outputs,
available for reading. EFA/ORA is synchronized to the LOW-to-HIGH transition of
CLKA.[1]
EFB/ORB
Port B
Empty/Output
Ready Flag
O
This is a dual-function pin. In the CY Standard Mode, the EFB function is selected.
EFB indicates whether or not the FIFO1 memory is empty. In the FWFT Mode, the ORB
function is selected. ORB indicates the presence of valid data on B0–17 outputs,
available for reading. EFB/ORB is synchronized to the LOW-to-HIGH transition of
CLKB.[1]
ENA
Port A Enable
I
ENA must be HIGH to enable a LOW-to-HIGH transition of CLKA to read or write
data on Port A.
ENB
Port B Enable
I
ENB must be HIGH to enable a LOW-to-HIGH transition of CLKB to read or write
data on Port B.
FFA/IRA
Port A Full/Input
Ready Flag
O
This is a dual-function pin. In the CY Standard Mode, the FFA function is selected.
FFA indicates whether or not the FIFO1 memory is full. In the FWFT mode, the IRA
function is selected. IRA indicates whether or not there is space available for writing to
the FIFO1 memory. FFA/IRA is synchronized to the LOW-to-HIGH transition of CLKA.
FFC/IRC
Port C Full/Input
Ready Flag
O
This is a dual-function pin. In the CY Standard Mode, the FFC function is selected. FFC
indicates whether or not the FIFO2 memory is full. In the FWFT mode, the IRC function
is selected. IRC indicates whether or not there is space available for writing to the
FIFO2 memory. FFC/IRC is synchronized to the LOW-to-HIGH transition of CLKB.
Notes:
1. When reading from the FIFO under FWFT, ORA/ORB signal should be included in the read logic to ensure proper operation. To read without gating the boundary
flag (e.g., in bursts), use CY standard mode.
2. When FIFO is operated at the almost empty/full boundary, there may be an uncertainty of up to three clock cycles for flag assertion and deassertion. Refer to
“Designing with CY7C436xx Synchronous FIFO” application notes for more details on flag uncertainties.
Pin Definitions (continued)
Signal Name
Description
I/O
Function


Similar Part No. - CY7C43646-10AC

ManufacturerPart #DatasheetDescription
logo
Cypress Semiconductor
CY7C43646AV CYPRESS-CY7C43646AV Datasheet
644Kb / 40P
   3.3V 1K 4K 16K x 36 x 18 x 2 Tri Bus FIFO
CY7C43646AV-10AC CYPRESS-CY7C43646AV-10AC Datasheet
644Kb / 40P
   3.3V 1K 4K 16K x 36 x 18 x 2 Tri Bus FIFO
CY7C43646AV-15AC CYPRESS-CY7C43646AV-15AC Datasheet
644Kb / 40P
   3.3V 1K 4K 16K x 36 x 18 x 2 Tri Bus FIFO
CY7C43646AV-7AC CYPRESS-CY7C43646AV-7AC Datasheet
644Kb / 40P
   3.3V 1K 4K 16K x 36 x 18 x 2 Tri Bus FIFO
More results

Similar Description - CY7C43646-10AC

ManufacturerPart #DatasheetDescription
logo
Cypress Semiconductor
CY7C43642 CYPRESS-CY7C43642 Datasheet
474Kb / 30P
   1K/4K/16K x36 x2 Bidirectional Synchronous FIFO
CY7C43642AV CYPRESS-CY7C43642AV Datasheet
482Kb / 30P
   3.3V 1K/4K/16K x36 x2 Bidirectional Synchronous FIFO
CY7C43644AV CYPRESS-CY7C43644AV Datasheet
653Kb / 37P
   3.3V 1K/4K/16K x36 x2 Bidirectional Synchronous FIFO with Bus Matching
CY7C43643 CYPRESS-CY7C43643 Datasheet
487Kb / 29P
   1K/4K/16K x36 Unidirectional Synchronous FIFO with Bus Matching
CY7C43644 CYPRESS-CY7C43644 Datasheet
651Kb / 39P
   1K/4K x36 x2 Bidirectional Synchronous FIFO with Bus Matching
CY7C43663AV CYPRESS-CY7C43663AV Datasheet
481Kb / 28P
   3.3V 1K/4K/16K x36 Unidirectional Synchronous FIFO with Bus Matching
CY7C43646AV CYPRESS-CY7C43646AV Datasheet
644Kb / 40P
   3.3V 1K 4K 16K x 36 x 18 x 2 Tri Bus FIFO
logo
Micron Technology
MT44K32M18 MICRON-MT44K32M18 Datasheet
6Mb / 111P
   576Mb: x18, x36 RLDRAM 3
logo
AverLogic Technologies ...
AL4CX263 AVERLOGIC-AL4CX263 Datasheet
41Kb / 2P
   16K/32K/64K/128K x9, 8K/16K/32K/64K x18 Synchronous FIFO
logo
Catalyst Semiconductor
CAT24WC01 CATALYST-CAT24WC01 Datasheet
45Kb / 9P
   1K/2K/4K/8K/16K-Bit Serial E2PROM
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com