參數(shù)資料
型號(hào): IDT7208L35P
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: DRAM
英文描述: CMOS ASYNCHRONOUS FIFO 65,536 x 9
中文描述: 64K X 9 OTHER FIFO, 35 ns, PDIP28
封裝: PLASTIC, DIP-28
文件頁(yè)數(shù): 10/12頁(yè)
文件大?。?/td> 147K
代理商: IDT7208L35P
IDT7208 CMOS ASYNCHRONOUS FIFO
65,536 x 9
COMMERCIAL TEMPERATURE RANGES
5.06
10
TRUTH TABLES
TABLE I – RESET AND RETRANSMIT
SINGLE DEVICE CONFIGURATION/WIDTH EXPANSION MODE
Inputs
Internal Status
Outputs
Mode
RS
RT
XI
Read Pointer
Location Zero
Location Zero
Increment
(1)
Write Pointer
Location Zero
Unchanged
Increment
(1)
EF
FF
HF
Reset
Retransmit
Read/Write
NOTE:
1. Pointer will Increment if flag is HIGH.
0
1
1
X
0
1
0
0
0
0
X
X
1
X
X
1
X
X
TABLE II – RESET AND FIRST LOAD
DEPTH EXPANSION/COMPOUND EXPANSION MODE
Inputs
FL
Internal Status
Outputs
Mode
RS
XI
Read Pointer
Location Zero
Location Zero
X
Write Pointer
Location Zero
Location Zero
X
EF
FF
Reset First Device
Reset all Other Devices
Read/Write
NOTES:
1.
XI
is connected to
XO
of previous device. See Figure 14.
2.
RS
= Reset Input,
FL/RT
= First Load/Retransmit,
EF
= Empty Flag Output,
FF
= Full Flag Output,
XI
= Expansion Input,
HF
= Half-Full Flag Output
0
0
1
0
1
X
(1)
(1)
(1)
0
0
X
1
1
X
Figure 14. Block Diagram of 196,608 x 9 FIFO Memory (Depth Expansion)
7208 tbl 08
7208 tbl 07
D
W
IDT
7208
FF
EF
FL
XO
RS
FULL
EMPTY
V
CC
R
9
9
9
9
XI
9
Q
FF
EF
FL
XO
XI
FF
EF
FL
XO
XI
IDT
7208
IDT
7208
3274 drw 17
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