IDT70T633 Integrated Device Technology, IDT70T633 Datasheet - Page 17

• 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. Port-to-port delay through RAM cells from writing port to reading port, refer to "Timing Waveform of Write with Port-to-Port Read and BUSY (M/S = V
2. To ensure that the earlier of the two ports wins.
3. t
4. To ensure that the write cycle is inhibited on port "B" during contention on port "A".
5. To ensure that a write cycle is completed on port "B" after contention on port "A".
6. 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 Range
NOTES:
1. Timing is the same for both ports.
2. The sleep mode pin shuts off all dynamic inputs, except JTAG inputs, when asserted. OPTx, INTx, M/S and the sleep mode pins themselves (ZZx) are not affected
3. 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.
4. 8ns Commercial and 10ns Industrial speed grades are available in BF-208 and BC-256 packages only.
5. This parameter is guaranteed by device characterization, but is not production tested.
SLEEP MODE TIMING (ZZx=V
t
t
t
t
BUSY TIMING (M/S=V
t
t
t
t
t
t
t
BUSY TIMING (M/S=V
t
t
PORT-TO-PORT DELAY TIMING
t
t
ZZS
ZZR
ZZPD
ZZPU
BAA
BDA
BAC
BDC
APS
BDD
WH
WB
WH
WDD
DDD
IDT70T633/1S
High-Speed 2.5V 512/256K x 18 Asynchronous Dual-Port Static RAM
Symbol
Symbol
during sleep mode. It is recommended that boundary scan not be operated during sleep mode.
BDD
is a calculated parameter and is the greater of the Max. spec, t
BUSY Access Time from Address Match
BUSY Disable Time from Address Not Matched
BUSY Access Time from Chip Enable Low
BUSY Disable Time from Chip Enable High
Arbitration Priority Set-up Time
BUSY Disable to Valid Data
Write Hold After BUSY
BUSY Input to Write
Write Hold After BUSY
Write Pulse to Data Delay
Write Data Valid to Read Data Delay
Sleep Mode Set Time
Sleep Mode Reset Time
Sleep Mode Power Down Time
Sleep Mode Power Up Time
IH
IL
)
)
IH
)
(4)
(5)
(5)
(1)
(3)
Parameter
Parameter
(2)
(5)
(5)
(1)
WDD
– t
WP
17
Min.
70T633/1S8
____
____
____
____
2.5
____
____
____
(actual), or t
Com'l Only
6
0
6
Min.
70T633/1S8
____
Com'l Only
8
8
8
Max.
____
____
____
____
12
12
8
8
8
8
8
(6)
DDD
Max.
____
____
____
0
(4)
– t
Min.
____
____
____
____
2.5
____
____
____
70T633/1S10
DW
7
0
7
& Ind
Com'l
Industrial and Commercial Temperature Ranges
(actual).
Min.
____
70T633/1S10
10
10
10
(6)
& Ind
Max.
Com'l
____
____
____
____
10
10
10
10
10
14
14
(1,2,3)
(4)
Max.
____
____
____
0
Min.
____
____
____
____
2.5
____
____
____
70T633/1S12
9
0
9
Com'l
& Ind
Min.
____
12
12
12
70T6331S12
Max.
____
____
____
____
12
12
12
12
12
16
16
Com'l
& Ind
Max.
____
____
____
0
Min.
____
____
____
____
2.5
____
____
____
70T633/1S15
12
12
Com'l Only
0
Min.
____
70T633/1S15
15
15
15
Com'l Only
Max.
____
____
____
____
15
15
15
15
15
20
20
IH
)".
5670 tbl 15a
5670 tbl 15
Max.
____
____
____
Unit
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns