參數(shù)資料
型號： CY7C453
廠商： Cypress Semiconductor Corp.
英文描述： 2Kx9 Cascadable Clocked FIFOs with Programmable Flags(帶可編程標(biāo)記的2Kx9可級聯(lián)定時的先進(jìn)先出)
中文描述： 2Kx9級聯(lián)與時鐘FIFO的可編程標(biāo)志（帶可編程標(biāo)記的2Kx9可級聯(lián)定時的先進(jìn)先出）
文件頁數(shù)： 20/23頁
文件大小： 437K
代理商： CY7C453
CY7C451
CY7C453
CY7C454
20
PRELIMINARY
.]
Figure 2. Depth Expansion with CY7C451/3/4
Table 3. Almost Empty Flag (Non-Boundary Flag) Operation Example
[46]
Status Before Operation
Num-
ber of
Words
in FIFO
AE
1
0
1
32
Status After Operation
Current
State of
FIFO
E/F
AFE
HF
Operation
Write
(ENW = 0)
Write
(ENW = 0)
Read
(ENR = 0)
Read
(ENR = 1)
Read
(ENR = 0)
Next
State
of FIFO
AE
E/F
1
PAFE
0
HF
1
Number
of words
in FIFO
33
Comments
Write
AE
1
0
1
33
AE
1
0
1
34
Write
AE
1
0
1
34
<HF
1
1
1
33
Flag Update and Read
<HF
1
1
1
33
<HF
1
1
1
33
Ignored Read
(ENR = 1)
Read (Transition from
<HF to AE)
<HF
1
1
1
33
AE
1
0
1
32
Note:
46. Applies to both CY7C451, CY7C453, and CY7C454 operations when devices are programmed so that Almost Empty becomes active when the FIFO contains
32 or fewer words.
MR
ENR
E/F
DATA IN
DATA OUT
D
0 – 8
CKW
ENW
Q
0 – 8
CKR
D
0 – 8
CKW
ENW
Q
0 – 8
CKR
ENR
MR
Q
0– 8
D
0– 8
MR
PAFE/XO
XI
PAFE/XO
XI
V
CC
V
SS
HF
FL/RT
HF
E/F
FL/RT
CY7C451/3/4
CY7C451/3/4
CKW
CKR
ENR
OE
ENW
OE
FULL
EMPTY
OE
相關(guān)PDF資料
PDF描述
CY7C451 512x9 Cascadable Clocked FIFOs with Programmable Flags(帶可編程標(biāo)記的512x9可級聯(lián)定時的先進(jìn)先出)
CY7C454 4Kx9 Cascadable Clocked FIFOs with Programmable Flags(帶可編程標(biāo)記的4Kx9可級聯(lián)定時的先進(jìn)先出)
CY7C466A Asynchronous, Cascadable 64K x9 FIFOs(異步，可級聯(lián)的 64K x9 先進(jìn)先出)
CY7C460A Asynchronous, Cascadable 8K/16K/32K/64K x9 FIFOs
CY7C460A-10JC Asynchronous, Cascadable 8K/16K/32K/64K x9 FIFOs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CY7C453 WAF 制造商:Cypress Semiconductor 功能描述:
CY7C453-14JI 制造商:Cypress Semiconductor 功能描述:
CY7C453-20JC 制造商:Cypress Semiconductor 功能描述:FIFO Mem Sync Dual Depth/Width Uni-Dir 2K x 9 32-Pin PLCC 制造商:Cypress Semiconductor 功能描述:FIFO, 2K x 9, Synchronous, 32 Pin, Plastic, PLCC
CY7C454-14LMB 制造商:Cypress Semiconductor 功能描述:512X9, 2KX9, AND 4KX9 CASCADABLE CLOCKED FIFOS WITH PROGRAMMABLE
CY7C455-14JC 制造商:Cypress Semiconductor 功能描述:FIFO Mem Sync Dual Depth/Width Uni-Dir 512 x 18 52-Pin PLCC
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