IS41LV16257B-35T-TR ISSI, Integrated Silicon Solution Inc, IS41LV16257B-35T-TR Datasheet - Page 2

• Manufacturer Part Number: IS41LV16257B-35T-TR
• Manufacturer: ISSI, Integrated Silicon Solution Inc
• Type: FPMr

Specifications of IS41LV16257B-35T-TR

• Organization: 256Kx16
• Density: 4Mb
• Address Bus: 9b
• Access Time (max): 35ns
• Maximum Clock Rate: Not RequiredMHz
• Operating Supply Voltage (typ): 3.3V
• Package Type: TSOP-II
• Operating Temp Range: 0C to 70C
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Supply Current: 220mA
• Pin Count: 40
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Not Compliant

FUNCTIONAL BLOCK DIAGRAM
IS41LV16257B
PIN CONFIGURATIONS
40-Pin TSOP (Type II)
2
VDD
VDD
VDD
RAS
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
WE
NC
NC
NC
A0
A1
A2
A3
LCAS
UCAS
A0-A8
RAS
OE
WE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
GENERATOR
GENERATOR
REFRESH
COUNTER
ADDRESS
BUFFERS
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
CLOCK
CLOCK
CAS
RAS
GND
I/O15
I/O14
I/O13
I/O12
GND
I/O11
I/O10
I/O9
I/O8
NC
LCAS
UCAS
OE
A8
A7
A6
A5
A4
GND
40-Pin SOJ
CAS
VDD
VDD
VDD
RAS
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
WE
NC
NC
NC
A0
A1
A2
A3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CONTROL
LOGICS
WE
COLUMN DECODERS
SENSE AMPLIFIERS
MEMORY ARRAY
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
DATA I/O BUS
262,144 x 16
GND
I/O15
I/O14
I/O13
I/O12
GND
I/O11
I/O10
I/O9
I/O8
NC
LCAS
UCAS
OE
A8
A7
A6
A5
A4
GND
WE
PIN DESCRIPTIONS
A0-A8
I/O0-I/O15
WE
OE
RAS
UCAS
LCAS
V
GND
NC
DD
CONTROL
LOGIC
OE
Integrated Silicon Solution, Inc.
Address Inputs
Data Inputs/Outputs
Write Enable
Output Enable
Row Address Strobe
Upper Column Address
Strobe
Lower Column Address
Strobe
Power
Ground
No Connection
I/O0-I/O15
06/18/07
Rev. C