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L8C201 датащи(PDF) 13 Page - LOGIC Devices Incorporated

номер детали L8C201
подробное описание детали  512/1K/2K/4K x 9-bit Asynchronous FIFO
PDF  22 Pages
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производитель  LODEV [LOGIC Devices Incorporated]
домашняя страница  http://www.logicdevices.com
Logo LODEV - LOGIC Devices Incorporated

L8C201 датащи(HTML) 13 Page - LOGIC Devices Incorporated

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DEVICES INCORPORATED
13
L8C201/202/203/204
512/1K/2K/4K x 9-bit Asynchronous FIFO
03/04/99–LDS.8C201/2/3/4-H
FIFO Products
FIGURE 1.
FIFO MEMORY (DEPTH EXPANSION) BLOCK DIAGRAM
INPUTS
INTERNAL STATUS
OUTPUTS
MODE
RS
RT
XI
Read Pointer
Write Pointer
EF
FF
HF
Reset
0
X
0
Location Zero
Location Zero
0
1
1
Retransmit
1
0
0
Location Zero
Unchanged
X
X
X
Read/Write
1
1
0
Increment
Increment
X
X
X
TABLE 1.
RESET AND RETRANSMIT (SINGLE DEVICE CONFIGURATION/WIDTH EXPANSION MODE)
INPUTS
INTERNAL STATUS
OUTPUTS
MODE
RS
RT
XI
Read Pointer
Write Pointer
EF
FF
Reset First Device
0
0
(1)
Location Zero
Location Zero
0
1
Reset All Others
0
1
(1)
Location Zero Disabled
Location Zero Disabled
0
1
Read/Write
1
(2)
(1)
X
X
X
X
TABLE 2.
RESET AND FIRST LOAD TRUTH TABLE (DEPTH EXPANSION/COMPOUND EXPANSION MODE)
(1) See Figure 1 (Depth Expansion Block Diagram)
(2) Unchanged
L8C20X
9
R
EMPTY
Q8-0
EF
FL
VCC
XO
XI
FF
W
D8-0
RS
FULL
9
9
9
9
9
L8C20X
EF
FL
XO
XI
FF
L8C20X
EF
FL
XO
XI
FF



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