參數(shù)資料
型號(hào): IDT72420L50TP
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: DRAM
英文描述: Current-Mode PWM Controller 14-SOIC 0 to 70
中文描述: 64 X 8 OTHER FIFO, PDIP28
封裝: 0.300 INCH, 0.100 INCH PITCH, THIN, PLASTIC, DIP-28
文件頁數(shù): 15/16頁
文件大?。?/td> 163K
代理商: IDT72420L50TP
5.12
15
IDT72420/72200/72210/72220/72230/72240 CMOS SyncFIFO
64 X 8, 256 X 8, 512 X 8, 1024 X 8, 2048 X 8 and 4096 X 8
MILITARY AND COMMERCIAL TEMPERATURE RANGES
OPERATING CONFIGURATIONS
SINGLE DEVICE CONFIGURATION -
A single IDT72420/
72200/72210/72220/72230/72240 may be used when the
application requirements are for 64/256/512/1024/2048/4096
words or less. See Figure 10.
WRITE CLOCK (WCLK)
READ CLOCK (RCLK)
READ ENABLE (
REN
)
OUTPUT ENABLE (
OE
)
FULL FLAG (
FF
)
ALMOST FULL (
AF
)
EMPTY FLAG (
EF
)
ALMOST EMPTY(
AE
)
IDT
72420/72200/
72210/
72220/
72230/
72240
RESET (RS)
WRITE ENABLE (
WEN
)
DATA IN (D
0
-D
7
)
DATA OUT (Q
0
- Q
7
)
2680 drw 12
Figure 10. Block Diagram of Single 64 x 8/256 x 8/512 x 8/1024 x 8/2048 x 8/4096 x 8 Synchronous FIFO
WIDTH EXPANSION CONFIGURATION -
Word width may
be increased simply by connecting the corresponding input
control signals of multiple devices. A composite flag should be
created for each of the end-point status flags (
EF
and
FF
) The
partial status flags (
AE
and
AF
) can be detected from any one
device. Figure 11 demonstrates a 16-bit word width by using
two IDT72420/72200/72210/72220/72230/72240s. Any word
width can be attained by adding additional IDT72420/72200/
72210/72220/72230/72240s.
WRITE CLOCK (WCLK)
READ CLOCK (RCLK)
DATA IN (D)
DATA OUT (Q)
IDT
72420/
72200/
72210/
72220/
72230/
72240
16
16
8
8
8
8
RESET (
RS
)
RESET (
RS
)
WRITE ENABLE (
WEN
)
FULL FLAG (
FF
) #1
ALMOST FULL (
AF
)
ALMOST EMPTY (
AE
)
EMPTY FLAG (
EF
) #1
OUTPUT ENABLE (
OE
)
READ ENABLE (
REN
)
FULL FLAG (
FF
) #2
EMPTY FLAG (
EF
) #2
IDT
72420/
72200/
72210/
72220/
72230/
72240
2680 drw 13
Figure 11. Block Diagram of 64 x 16/256 x 16/512 x 16/1024 x 16/2048 x 16/4096 x 16 Synchronous FIFO
Used in a Width Expansion Configuration
相關(guān)PDF資料
PDF描述
IDT72420L50TPB Current-Mode PWM Controller 8-SOIC 0 to 70
IDT72220L25TP CMOS SyncFIFOO 64 x 8, 256 x 8, 512 x 8, 1024 x 8, 2048 x 8 and 4096 x 8
IDT72220L25TPB CMOS SyncFIFOO 64 x 8, 256 x 8, 512 x 8, 1024 x 8, 2048 x 8 and 4096 x 8
IDT72220L35TC CMOS SyncFIFOO 64 x 8, 256 x 8, 512 x 8, 1024 x 8, 2048 x 8 and 4096 x 8
IDT72220L35TCB CMOS SyncFIFOO 64 x 8, 256 x 8, 512 x 8, 1024 x 8, 2048 x 8 and 4096 x 8
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