參數(shù)資料
型號: CY7C43666
廠商: Cypress Semiconductor Corp.
英文描述: 4K x36/x18x2 Tri Bus FIFO(4K x36/x18x2 三路總線先進(jìn)先出)
中文描述: 4K的x36/x18x2三總線的FIFO(4K的x36/x18x2三路總線先進(jìn)先出)
文件頁數(shù): 27/40頁
文件大?。?/td> 577K
代理商: CY7C43666
CY7C43626
CY7C43636/CY7C43646
CY7C43666/CY7C43686
27
PRELIMINARY
Notes:
46. FIFO1 Write (CSA = LOW, W/RA = HIGH, MBA = LOW), FIFO1 Read (CSB = LOW, MBB = LOW). Data in the FIFO1 output register has been read from
the FIFO.
47. D = Maximum FIFO Depth = 256 for the CY7C43626, 512 for the CY7C43636, 1K for the CY7C43646, 4K for the CY7C43666, and 16K for the CY7C43686.
48. If Port B size is word or byte, t
is referenced to the rising CLKB edge that writes the last word or byte of the long word, respectively.
49. t
is the minimum time between a rising CLKA edge and a rising CLKB edge for AFA to transition HIGH in the next CLKA cycle. If the time between the
rising CLKA edge and rising CLKB edge is less than t
, then AFA may transition HIGH one CLKB cycle later than shown.
50. If Port C size is word or byte, AFC is set LOW by the last word or byte write of the long word, respectively.
51. t
is the minimum time between a rising CLKC edge and a rising CLKA edge for AFC to transition HIGH in the next CLKC cycle. If the time between
the rising CLKC edge and rising CLKA edge is less than t
SKEW2
, then AFC may transition HIGH one CLKA cycle later than shown.
Switching Waveforms
(continued)
Timing for AFA when FIFO1 is Almost Full (CY Standard and FWFT Modes)
t
PAF
t
ENH
t
ENS
t
PAF
t
ENS
t
ENH
[D
(Y1+1)] Words in FIFO1
(D
Y1)Words in FIFO1
t
SKEW2[49]
CLKA
ENA
AFA
CLKB
RENB
[46, 47, 48]
t
PAF
t
ENH
t
ENS
t
PAF
t
ENS
t
ENH
[D
(Y2+1)] Words in FIFO2
(D
Y2)Words in FIFO2
t
SKEW2[51]
CLKC
WENC
AFC
CLKA
ENA
Timing for AFC when FIFO2 is Almost Full (CY Standard and FWFT Modes)
[43, 47, 50]
相關(guān)PDF資料
PDF描述
CY7C43686 16K x36/x18x2 Tri Bus FIFO(16K x36/x18x2 三路總線先進(jìn)先出)
CY7C43662AV 3.3V 4K x36 x2 Bidirectional Synchronous FIFO(3.3V 4K x36 x2 雙向同步先進(jìn)先出)
CY7C43682AV 3.3V 16K x36 x2 Bidirectional Synchronous FIFO(3.3V 16K x36 x2 雙向同步先進(jìn)先出)
CY7C43663AV 3.3V 4K x36 Unidirectional Synchronous FIFO w/ Bus Matching(3.3V 4K x36 單向同步先進(jìn)先出帶總線匹配)
CY7C43683AV 3.3V 16K x36 Unidirectional Synchronous FIFO w/ Bus Matching(3.3V 16K x36 單向同步先進(jìn)先出帶總線匹配)
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