參數(shù)資料
型號(hào): IDT7034S15PF
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: DRAM
英文描述: HIGH-SPEED 4K x 18 DUAL-PORT STATIC RAM
中文描述: 4K X 18 DUAL-PORT SRAM, 15 ns, PQFP100
封裝: 14 X 14 MM, 1.40 MM HEIGHT, TQFP-100
文件頁(yè)數(shù): 7/19頁(yè)
文件大小: 200K
代理商: IDT7034S15PF
6.42
IDT7034S/L
High-Speed 4K x 18 Dual-Port Static RAM Industrial and Commercial Temperature Ranges
AC Electrical Characteristics Over the
Operating Temperature and Supply Voltage Range
(4,5)
7
NOTES:
1.
2.
3.
4.
5.
Transition is measured ±500mV from Low or High-impedance voltage with Output Test Load (Figure 2).
This parameter is guaranteed by device characterization, but is not production tested.
To access RAM,
CE
= V
IL
,
UB
or
LB
= V
IL
, and
SEM
= V
IH
.
To access semaphore,
CE
= V
IH
or
UB
&
LB
= V
IH
, and
SEM
= V
IL
.
'X' in part numbers indicates power rating (S or L).
Industrial temperature: for specific speeds, packages and powers contact your sales office.
NOTES:
1. Timing depends on which signal is asserted last,
OE
,
CE
,
LB
, or
UB
.
2. Timing depends on which signal is de-asserted first,
CE
,
OE
,
LB
, or
UB
.
3. t
BDD
delay is required only in case where opposite port is completing a write operation to the same address location for simultaneous read operations
BUSY
has no
relation to valid output data.
4. Start of valid data depends on which timing becomes effective last
t
ABE
, t
AOE
, t
ACE
, t
AA
or t
BDD
.
5. SEM = V
IH
.
Waveform of Read Cycles
(5)
7034X15
Com'l Only
7034X20
Com'l Only
Unit
Symbol
Parameter
Min.
Max.
Min.
Max.
READ CYCLE
t
RC
Read Cycle Time
15
____
20
____
ns
t
AA
Address Access Time
____
15
____
20
ns
t
ACE
Chip Enable Access Time
(3)
____
15
____
20
ns
t
ABE
Byte Enable Access Time
(3)
____
15
____
20
ns
t
AOE
Output Enable Access Time
____
10
____
12
ns
t
OH
Output Hold from Address Change
3
____
3
____
ns
t
LZ
Output Low-Z Time
(1,2)
3
____
3
____
ns
t
HZ
Output High-Z Time
(1,2)
____
10
____
12
ns
t
PU
Chip Enable to Power Up Time
(2)
0
____
0
____
ns
t
PD
Chip Disable to Power Down Time
(2)
____
15
____
20
ns
t
SOP
Semaphore Flag Update Pulse (
OE
or
SEM
)
10
____
10
____
ns
t
SAA
Semaphore Address Access Time
____
15
____
20
ns
4089 tbl 12
t
RC
R/
W
CE
ADDR
t
AA
t
ACE
(4)
OE
UB
,
LB
4089 drw 05
(4)
t
AOE
(4)
t
ABE
(4)
(1)
t
LZ
t
OH
(2)
t
HZ
(3,4)
t
BDD
DATA
OUT
BUSY
OUT
VALID DATA
(4)
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