CXK5T8257BM-10LLX 반도체 회로 부품 판매점
32768-word X 8-bit High Speed CMOS Static RAM
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 Sony Corporation |
CXK5T8257BTM/BYM/BM -10LLX/12LLX
32768-word × 8-bit High Speed CMOS Static RAM Preliminary
For the availability of this product, please contact the sales office.
Description
The CXK5T8257BTM/BYM/BM is 262,144 bits high
speed CMOS static RAM organized as 32768-words
CXK5T8257BTM
28 pin TSOP (Plastic)
CXK5T8257BYM
28 pin TSOP (Plastic)
by 8 bits.
Special feature are low power consumption and
high speed.
The CXK5T8257BTM/BYM/BM is a suitable RAM
for portable equipment with battery back up.
Features
• Extended operating temperature range: –25 to +85°C
• Wide supply voltage range operation: 2.7 to 3.6V
• Fast access time:
(Access time)
3.0V operation -10LLX 100ns (Max.)
-12LLX 120ns (Max.)
3.3V operation -10LLX
85ns (Max.)
-12LLX 100ns (Max.)
• Low standby current: 7.0µA (Max.)
• Low power data retention: 2.0V (Min.)
• Available in many packages
CXK5T8257BTM/BYM
8mm × 13.4mm 28 pin TSOP Package
CXK5T8257BM
450mil 28 pin SOP Package
Function
32768-word × 8 bit static RAM
CXK5T8257BM
28 pin SOP (Plastic)
Block Diagram
A14
A13
A12
A11 Memory
A9
Buffer
Row
Decoder
Matrix
A8
A7 512 × 512
A6
A5
VCC
GND
Structure
Silicon gate CMOS IC
A10
A4
A3 Buffer
A2
A1
A0
I/O Gate
Column
Decoder
OE
Buffer
WE
CE
I/O Buffer
I/O1 I/O8
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
PE96509-ST
CXK5T8257BTM/BYM/BM
Pin Configuration (Top View)
OE 22
A11 23
A9 24
A8 25
A13 26
WE 27
VCC 28
A14 1
A12 2
A7 3
A6 4
A5 5
A4 6
A3 7
CXK5T8257BTM
(Standard Pinout)
A3 7
A4 6
A5 5
A6 4
A7 3
A12 2
A14 1
VCC 28
WE 27
A13 26
A8 25
A9 24
A11 23
OE 22
CXK5T8257BYM
(Standard Pinout)
21 A10
20 CE
19 I/O8
18 I/O7
17 I/O6
16 I/O5
15 I/O4
14 GND
13 I/O3
12 I/O2
11 I/O1
10 A0
9 A1
8 A2
8 A2
9 A1
10 A0
11 I/O1
12 I/O2
13 I/O3
14 GND
15 I/O4
16 I/O5
17 I/O6
18 I/O7
19 I/O8
20 CE
21 A10
Pin Description
A14 1
A12 2
A7 3
A6 4
A5 5
A4 6
A3 7
A2 8
A1 9
A0 10
I/O1 11
I/O2 12
I/O3 13
GND 14
28 VCC
27 WE
26 A13
25 A8
24 A9
23 A11
22 OE
21 A10
20 CE
19 I/O8
18 I/O7
17 I/O6
16 I/O5
15 I/O4
Symbol
A0 to A14
I/O1 to I/O8
CE
WE
OE
VCC
GND
Description
Address input
Data input/output
Chip enable input
Write enable input
Output enable input
Power supply
Ground
CXK5T8257BM
Absolute Maximum Ratings
(Ta = 25°C, GND = 0V)
Item
Supply voltage
Input voltage
Input and output voltage
Symbol
Rating
VCC –0.5 to +4.6
VIN –0.5∗1 to VCC + 0.5
VI/O –0.5∗1 to VCC + 0.5
Unit
V
V
V
Allowable power dissipation
Operating temperature
PD
Topr
0.7
–25 to +85
W
°C
Storage temperature
Tstg
–55 to +150
°C
Soldering temperature · time Tsolder
235 · 10
∗1 VIN, VI/O = –3.0V Min. for pulse width less than 50ns.
°C · s
Truth Table
CE OE WE
Mode
H × × Not selected
L H H Output disable
L L H Read
L×L
×: "H" or "L"
Write
I/O1 to I/O8
High Z
High Z
Data out
Data in
VCC Current
ISB1, ISB2
ICC1, ICC2
ICC1, ICC2
ICC1, ICC2
–2–
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제조업체: Sony Corporation
( sony )
CXK5T8257BM-10LLX cmos
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상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
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