IDT70T633 Integrated Device Technology, IDT70T633 Datasheet - Page 11

• Manufacturer Part Number: IDT70T633
• Description: 512k X 18, 3.3v/2.5v Dual-port Ram, Interleaved I/o
• Manufacturer: Integrated Device Technology

AC Electrical Characteristics Over the
Operating Temperature and Supply Voltage Range
NOTES:
1. Transition is measured 0mV from Low or High-impedance voltage with Output Test Load (Figure 1).
2. This parameter is guaranteed by device characterization, but is not production tested.
3. To access RAM, CE= V
4. These values are valid regardless of the power supply level selected for I/O and control signals (3.3V/2.5V). See page 6 for details.
5. 8ns Commercial and 10ns Industrial speed grades are available in BF-208 and BC-256 packages only.
AC Electrical Characteristics Over the
Operating Temperature and Supply Voltage
READ CYCLE
t
t
t
t
t
t
t
t
t
t
t
t
t
t
WRITE CYCLE
t
t
t
t
t
t
t
t
t
t
t
t
RC
AA
ACE
ABE
AOE
OH
LZ
LZOB
HZ
PU
PD
SOP
SAA
SOE
WC
EW
AW
AS
WP
WR
DW
DH
WZ
OW
SWRD
SPS
IDT70T633/1S
High-Speed 2.5V 512/256K x 18 Asynchronous Dual-Port Static RAM
Symbol
Symbol
CE
0
= V
IL
Read Cycle Time
Chip Enable Access Time
Byte Enable Access Time
Output Enable Access Time
Output Hold from Address Change
Output Low-Z Time Chip Enable and Semaphore
Output Low-Z Time Output Enable and Byte Enable
Output High-Z Time
Chip Enable to Power Up Time
Chip Disable to Power Down Time
Semaphore Flag Update Pulse (OE or SEM)
Semaphore Address Access Time
Semaphore Output Enable Access Time
Chip Enable to End-of-Write
Data Valid to End-of-Write
Data Hold Time
Output Active from End-of-Write
and CE
Address Access Time
Write Cycle Time
Address Valid to End-of-Write
Address Set-up Time
Write Pulse Width
Write Recovery Time
Write Enable to Output in High-Z
SEM Flag Write to Read Time
SEM Flag Contention Window
1
= V
IH
IL
. CE = V
and SEM = V
(1,2)
(3)
(3)
(3)
IH
(3)
when CE
(2)
(1,2)
(1,2)
Parameter
Parameter
IH
(2)
. To access semaphore, CE = V
0
= V
IH
and/or CE
(1,2)
(1,2)
1
= V
IL
.
IH
11
and SEM = V
Min.
Min.
70T633/1S8
____
____
____
____
____
____
____
70T633/1S8
____
Com'l Only
8
3
3
0
0
0
2
Com'l Only
8
6
6
0
6
0
4
0
3
4
4
IL
Max.
Max.
. Either condition must be valid for the entire t
____
____
____
____
3.5
____
____
____
____
____
____
____
____
____
3.5
____
____
____
8
8
4
4
7
4
8
5
(5)
(4)
(5)
Min.
Min.
Industrial and Commercial Temperature Ranges
____
____
____
____
____
____
____
____
70T633/1S10
10
70T633/1S10
10
3
3
0
0
0
2
7
7
0
7
0
5
0
3
5
5
& Ind
& Ind
Com'l
Com'l
(4)
(5)
(5)
Max.
Max.
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
10
10
10
5
5
4
8
4
5
4
Min.
Min.
____
____
____
____
____
____
____
____
70T633/1S12
70T633/1S12
12
12
3
3
0
0
0
2
9
9
0
9
0
7
0
3
5
5
Com'l
Com'l
& Ind
& Ind
Max.
Max.
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
12
12
12
6
6
6
8
6
6
6
Min.
Min.
EW
____
____
____
____
____
____
____
____
70T633/1S15
70T633/1S15
15
15
12
12
12
10
Com'l Only
3
3
0
0
0
2
Com'l Only
0
0
0
3
5
5
time. CE = V
Max.
Max.
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
15
15
12
15
7
7
8
8
7
8
5670 tbl 12
5670 tbl 13
IL
Unit
Unit
when
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns