參數(shù)資料
型號(hào): IDT72511L25J
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: DRAM
英文描述: High-Performance Current-Mode PWM Controller 14-SOIC 0 to 70
中文描述: 512 X 18 BI-DIRECTIONAL FIFO, 25 ns, PQCC68
封裝: PLASTIC, LCC-68
文件頁數(shù): 17/28頁
文件大?。?/td> 434K
代理商: IDT72511L25J
IDT72511/IDT72521
BIDIRECTIONAL FIRST-IN FIRST-OUT MEMORY
MILITARY AND COMMERCIAL TEMPERATURE RANGES
5.32
17
AC ELECTRICAL CHARACTERISTICS
(Commercial: V
CC
= 5V
±
10%, T
A
= 0
°
C to + 70
°
C; Military: V
CC
= 5V
±
10%, T
A
= –55
°
C to + 125
°
C)
Commercial
Military
Com'l & Mil.
IDT72511L25
IDT72521L25
Min.
IDT72511L35
IDT72521L35
Min.
IDT72511L50
IDT72521L50
Min.
IDT72521L40
Min.
Timing
Figure
Symbol
Parameter
Max.
Max.
Max.
Max.
Unit
PORT B RETRANSMIT TIMING
tb
DSBH
RER
,
REW
, LDRER,
LDREW set-up and
recovery time
10
10
10
15
ns
9, 18
PROGRAMMABLE I/O TIMING
t
PIOA
Programmable I/O
access time
20
25
25
30
ns
19
t
PIOS
Programmable I/O set-
up time
8
10
10
15
ns
19
t
PIOH
Programmable I/O hold
time
8
10
10
15
ns
19
BYPASS TIMING
t
BYA
Bypass access time
18
20
25
30
ns
16
t
BYD
ta
BYDV
Bypass delay
Bypass data valid time
from
DS
A
Bypass data valid time
from
DS
B
FLAG TIMING
(1) (2)
t
REF
Read clock edge to
Empty Flag asserted
15
10
15
15
15
20
15
20
ns
ns
16
16
tb
BYDV (3)
3
3
3
3
ns
16
25
35
40
45
ns
14, 15, 20, 22
t
WEF
Write clock edge to
Empty Flag not asserted
Read clock edge to Full
Flag not asserted
Write clock edge to Full
Flag asserted
Read clock edge to
Almost-Empty Flag
asserted
Write clock edge to
Almost-Empty Flag not
asserted
Read clock edge to
Almost-Full Flag not
asserted
Write clock edge to
Almost-Full Flag
asserted
25
35
40
45
ns
14, 15, 20, 22
t
RFF
25
35
40
45
ns
14, 15, 21, 23
t
WFF
25
35
40
45
ns
14, 15, 21, 23
t
RAEF
40
50
55
60
ns
20, 22
t
WAEF
40
50
55
60
ns
20, 22
t
RAFF
40
50
55
60
ns
21, 23
t
WAFF
40
50
55
60
ns
21, 23
NOTES:
1. Read and write are internal signals derived from
DS
A
, R/
W
A
,
DS
B
,
R
/W
B
,
R
B
, and
W
B
.
2. Although the flags, Empty, Almost-Empty, Almost-Full, and Full Flags are internal flags, the timing given is for those assigned to external pins.
3. Values guaranteed by design, not currently tested.
4. IDT72511 not available in military.
2668 tbl 23
(4)
相關(guān)PDF資料
PDF描述
IDT72511L25JB High-Performance Current-Mode PWM Controller 8-SOIC 0 to 70
IDT72511L35G High-Performance Current-Mode PWM Controller 14-SOIC 0 to 70
IDT72511L35GB High-Performance Current-Mode PWM Controller 8-SOIC 0 to 70
IDT72511L35J High-Performance Current-Mode PWM Controller 8-PDIP 0 to 70
IDT72511L35JB High-Performance Current-Mode PWM Controller 8-PDIP 0 to 70
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