70V659S12BFI Integrated Device Technology (Idt), 70V659S12BFI Datasheet - Page 11

• Manufacturer Part Number: 70V659S12BFI
• Description: SRAM Chip Async Dual 3.3V 4.5M-Bit 128K x 36 12ns 208-Pin CABGA
• Manufacturer: Integrated Device Technology (Idt)

Specifications of 70V659S12BFI

• Package: 208CABGA
• Timing Type: Asynchronous
• Density: 4.5 Mb
• Typical Operating Supply Voltage: 3.3 V
• Address Bus Width: 17 Bit
• Number Of I/o Lines: 36 Bit
• Number Of Ports: 2
• Number Of Words: 128K

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 2).
2. This parameter is guaranted by device characterization, but is not production tested.
3. To access RAM, CE= V
4. The specification for t
5. 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.
AC Electrical Characteristics Over the
Operating Temperature and Supply Voltage
READ CYCLE
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
HZ
PU
PD
SOP
SAA
WC
EW
AW
AS
WP
WR
DW
DH
WZ
OW
SWRD
SPS
IDT70V659/58/57S
High-Speed 3.3V 128/64/32K x 36 Asynchronous Dual-Port Static RAM
Symbol
Symbol
and temperature, the actual t
Read Cycle Time
Chip Enable Access Time
Byte Enable Access Time
Output Enable Access Time
Output Hold from Address Change
Output Low-Z Time
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
Chip Enable to End-of-Write
Data Valid to End-of-Write
Data Hold Time
Output Active from End-of-Write
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
DH
IL
must be met by the device supplying write data to the RAM under all operating conditions. Although t
and SEM = V
(4)
DH
(1,2)
(1,2)
will always be smaller than the actual t
(3)
(3)
(3)
(3)
IH
. To access semaphore, CE = V
(2)
(1,2,4)
(1,2)
Parameter
Parameter
(2)
OW
.
IH
11
and SEM = V
IL
70V659/58/57S10
70V659/58/57S10
. Either condition must be valid for the entire t
Min.
Min.
(5)
____
____
____
____
____
____
____
10
10
Com'l Only
3
0
0
0
3
Com'l Only
8
8
0
8
0
6
0
0
5
5
Industrial and Commercial Temperature Ranges
Max.
Max.
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
10
10
10
10
5
5
4
4
4
(5)
70V659/58/57S12
70V659/58/57S12
Min.
Min.
____
____
____
____
____
____
____
12
12
10
10
10
3
0
0
0
3
0
0
8
0
0
5
5
Com'l
Com'l
& Ind
& Ind
DH
Max.
Max.
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
12
12
10
12
and t
6
6
6
6
4
OW
70V659/58/57S15
70V659/58/57S15
values will vary over voltage
Min.
Min.
____
____
____
____
____
____
____
15
15
12
12
12
10
3
0
0
0
3
0
0
0
0
5
5
Com'l
& Ind
Com'l
& Ind
EW
time.
Max.
Max.
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
15
15
15
20
7
7
8
8
4
4869 tbl 12
4869 tbl 13
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns