參數(shù)資料
型號(hào): IDT7207L25L
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: DRAM
英文描述: 12-bit Serializer / Deserializer; Package: BGA; No of Pins: 42; Container: Tape & Reel
中文描述: 32K X 9 OTHER FIFO, 25 ns, CQCC32
封裝: LCC-32
文件頁(yè)數(shù): 10/12頁(yè)
文件大?。?/td> 148K
代理商: IDT7207L25L
5.05
10
IDT7207 CMOS ASYNCHRONOUS FIFO
32,768 x 9
MILITARY AND COMMERCIAL TEMPERATURE RANGES
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 98,304 x 9 FIFO Memory (Depth Expansion)
3140 tbl 10
3140 tbl 09
D
W
IDT
7207
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
7207
IDT
7207
3140 drw 17
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