IS62C256AL-45ULI ISSI, Integrated Silicon Solution Inc, IS62C256AL-45ULI Datasheet - Page 7
![IC SRAM 256KBIT 45NS 28SOP](/photos/7/22/72257/is62c256al-45uli_sml.jpg)
IS62C256AL-45ULI
Manufacturer Part Number
IS62C256AL-45ULI
Description
IC SRAM 256KBIT 45NS 28SOP
Manufacturer
ISSI, Integrated Silicon Solution Inc
Type
Asynchronousr
Datasheet
1.IS62C256AL-45ULI.pdf
(12 pages)
Specifications of IS62C256AL-45ULI
Memory Size
256K (32K x 8)
Package / Case
28-SOP
Interface
Parallel
Format - Memory
RAM
Memory Type
SRAM - Asynchronous
Speed
45ns
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Access Time
45 ns
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.5 V
Maximum Operating Current
25 mA
Organization
32 K x 8
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Number Of Ports
1
Operating Supply Voltage
5 V
Density
256Kb
Access Time (max)
45ns
Sync/async
Asynchronous
Architecture
Not Required
Clock Freq (max)
Not RequiredMHz
Operating Supply Voltage (typ)
5V
Address Bus
15b
Package Type
SOP
Operating Temp Range
-40C to 85C
Supply Current
25mA
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
28
Word Size
8b
Number Of Words
32K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
706-1043
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
IS62C256AL-45ULI
Manufacturer:
INFINEON
Quantity:
6 500
Company:
Part Number:
IS62C256AL-45ULI
Manufacturer:
ISSI
Quantity:
5 380
Company:
Part Number:
IS62C256AL-45ULI
Manufacturer:
ISSI
Quantity:
5 380
Company:
Part Number:
IS62C256AL-45ULI
Manufacturer:
ISSI
Quantity:
1 758
Company:
Part Number:
IS62C256AL-45ULI
Manufacturer:
ISSI
Quantity:
2 000
Part Number:
IS62C256AL-45ULI
Manufacturer:
ISSI
Quantity:
20 000
Part Number:
IS62C256AL-45ULI-TR
Manufacturer:
ISSI
Quantity:
20 000
IS65C256AL
IS62C256AL
AC WAVEFORMS
WRITE CYCLE NO. 1
Integrated Silicon Solution, Inc.
Rev. C
07/12/07
WRITE CYCLE SWITCHING CHARACTERISTICS
Notes:
1. Test conditions assume signal transition times of 5 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V and
2. Tested with the load in Figure 2. Transition is measured ±500 mV from steady-state voltage. Not 100% tested.
3. The internal write time is defined by the overlap of CE LOW and WE LOW. All signals must be in valid states to initiate a Write,
4. Tested with OE HIGH.
Symbol
t
t
t
t
t
t
t
t
t
output loading specified in Figure 1.
but any one can go inactive to terminate the Write. The Data Input Setup and Hold timing are referenced to the rising or falling
edge of the signal that terminates the write.
WC
SCS
AW
HA
SA
PWE
PWE
SD
HD
1,
2
ADDRESS
(4)
D
OUT
WE
D
CE
IN
Parameter
Write Cycle Time
CE to Write End
Address Setup Time to Write End
Address Hold from Write End
Address Setup Time
WE Pulse Width
Data Setup to Write End
Data Hold from Write End
(CE Controlled, OE is HIGH or LOW)
DATA UNDEFINED
t
SA
t
HZWE
t
VALID ADDRESS
AW
t
t
PWE1
PWE2
t
t
SCS
WC
Min.
(1,3)
25
15
15
15
12
0
0
0
HIGH-Z
(1 )
-25 ns
(Over Operating Range)
t
Max.
SD
DATA
—
—
—
—
—
—
—
—
IN
VALID
t
Min. Max.
HD
t
45
35
25
25
20
0
0
0
-45 ns
LZWE
t
HA
—
—
—
—
—
—
—
—
CS_WR1.eps
Unit
ns
ns
ns
ns
ns
ns
ns
ns
7