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262144-word × 8-bit High Speed CMOS Static RAM
Description
The CXK582000TM/YM/M is a high speed CMOS
static RAM organized as 262144-words by 8 bits.
A polysilicon TFT cell technology realized
extremely low stand-by current and higher data
retention stability.
Special feature are low power consumption and
high speed and board package line-up.
The CXK582000TM/YM/M is a suitable RAM for
portable equipment with battery back up.
Features
• Fast access time(Access time)
-85LL85ns (Max.)
-10LL100ns (Max.)
• Low standby current40µA (Max.)
• Low data retention current24µA (Max.)
• Single +5V supply: 4.5V to 5.5V.
• Low voltage date retention : 2.0V (Min.)
• Broad package line-up
CXK582000TM/YM8mm × 20mm 32 pin
TSOP Package
CXK582000M525mil 32 pin
SOP Package
Function
262144 word x 8 bit static RAM
CXK582000TM
32 pin TSOP (PIastic)
32 pin SOP (PIastic)
Block Diagram
A10
A11
A9
A8
A13
A15
A17
A16
A14
A12
A7
Buffer
Preliminary
32 pin TSOP (PIastic)
CXK582000M
Row
Decoder
CXK582000YM
Memory
Matrix
2048 × 1024
VCC
GND
Structure
Silicon gate CMOS IC
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.
A6
A5
A4
A3
A2
A1
A0
OE
WE
CE1
CE2
Buffer
Buffer
I /O Gate
Column
Decoder
I /O Buffer
I/O1
I/O8
– 1 –
E94234-ST
Page 2
CXK582000TM/YM/M
Pin Configuration (Top View)
1
A11
2
A9
3
A8
A13
4
WE
5
CE2
6
A15
Vcc
A17
A16
A14
A12
A12
A14
A16
A17
Vcc
A15
CE2
WE
A13
A11
7
8
9
10
11
12
13
A7
14
A6
A5
15
16
A4
16
A4
15
A5
14
A6
13
A7
12
11
10
9
8
7
6
5
4
A8
3
A9
2
1
CXK582000TM
(Standard Pinout)
CXK582000YM
(Mirror image Pinout)
Pin Description
32
OE
31
A10
30
CE1
29
I/O8
28
I/O7
27
I/O6
26
I/O5
I/O4
25
GND
24
I/O3
23
I/O2
22
I/O1
21
A0
20
19
A1
18
A2
A3
17
17
A3
18
A2
19
A1
20
A0
21
I/O1
22
I/O2
23
I/O3
24
GND
25
I/O4
26
I/O5
I/O6
27
I/O7
28
I/O8
29
CE1
30
A10
31
OE
32
A17
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O1
I/O2
I/O3
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CXK582000M
32
Vcc
31
A15
30
CE2
29
WE
28
A13
27
A8
26
A9
25
A11
24
OE
23
A10
22
CE1
21
I/O8
20
I/O7
19
I/O6
18
I/O5
17
I/O4
SymbolDescription
A0 to A17
I/O1 to I/O8
CE1, CE2
WE
OE
VCC
GND
Address input
Data input output
Chip enable 1, 2 input
Write enable input
Output enable input
Power supply
Ground
Absolute Maximum Ratings(Ta = 25°C, GND = 0V)
ItemSymbolRatingUnit
Supply voltage
Input voltage
Input and output voltage
Allowable power dissipation
Operating temperature
Storage temperature
Soldering temperature · time
VCC
VIN
VI/O
PD
Topr
Tstg
Tsolder
–0.5 to +7.0
–0.5∗ to VCC + 0.5
–0.5∗ to VCC + 0.5
0.7
0 to +70
–55 to +150
235 · 10
V
V
V
W
°C
°C
°C · s
∗ VIN, VI/O = –3.0V Min. for pulse width less than 50ns.
Truth Table
CE1 CE2OEWE
H
×
×
×
×
L
×
×
L
H
H
H
ModeI/O pinVCC Current
Not selected
Not selected
Output disable
High Z
High Z
High Z
ISB1, ISB2
ISB1, ISB2
ICC1, ICC2, ICC3
L
H
L
H
×: “H” or “L”
L
H
Read
×
L
Write
Data out
Data in
ICC1, ICC2, ICC3
ICC1, ICC2, ICC3
– 2 –
Page 3
DC Recommended Operating Conditions(Ta = 0 to +70°C, GND = 0V)
Supply voltage
Input high voltage
Input low voltage
∗ VIL = –3.0V Min. for pulse width less than 50ns.
Electrical Characteristics
• DC Characteristics
ItemSymbolMin.
Input leakage current
Output leakage current
Operating power supply
current
Average operating current
5.0
—
—
5.5
VCC + 0.3
0.8
(VCC = 5V ± 10%, GND = 0V, Ta = 0 to +70°C)
-85LLX
-10LLX
V
V
V
Typ.∗
–1
–1
—
—
—
—12
—
—
7
45
40
Max.UnitTest conditions
+1
+1
15
80
70
24
µA
µA
mA
mA
mA
Standby current
Output high voltage
Output low voltage
∗ VCC = 5V, Ta = 25°C
ISB1
ISB2
VOH
VOL
CE2 ≤ 0.2V
CE1 ≥ Vcc – 0.2V
or
{
CE2 ≥ Vcc – 0.2V
CE1 = VIH or CE2 = VIL
IOH = –1.0mA
IOL = 1.0mA
– 3 –
0 to +70°C
0 to +40°C
+25°C
—
—
—
—
2.4
—
—
—
1.4
0.6
—
—
40
8
4
3
—
0.4
µA
mA
V
V
Page 4
I/O capacitance(Ta = 25°C, f = 1MHz)
ItemSymbol Test conditonsMin.Typ.Max.Unit
CXK582000TM/YM/M
Input capacitance
I/O capacitance
CIN
CI/O
VIN = 0V
VI/O = 0V
—
—
Note) This parameter is sampled and is not 100% tested.
AC Characteristics
• AC test conditions(VCC = 5V ± 10%, Ta = 0 to +70°C)
ItemConditions
Input pulse high level
Input pulse low level
Input rise time
Input fall time
Input and output reference level
Output load conditions
VIH = 2.2V
VIL = 0.8V
tr = 5ns
tf = 5ns
1.5V
CL∗ = 100pF, 1TTL
∗ CL includes scope and jig capacitances.
—
—
7
8
pF
pF
TTL
L
C
– 4 –
Page 5
CXK582000TM/YM/M
• Read cycle (WE = “H”)
ItemSymbol
Read cycle time
Address access time
Chip enable access time (CE1)
Chip enable access time (CE2)
Output enable to output valid
Output hold from address change
Chip enable to output in low Z (CE1, CE2)
Output enable to output in low Z (OE)
Chip disable to output in high Z (CE1, CE2)
Output disable to output in high Z (OE)
∗ tHZ1, tHZ2 and tOHZ are defined as the time required for outputs to turn to high impedance state and are not
Write cycle time
Address valid to end of write
Chip enable to end of write
Data to write time overlap
Data hold from write time
Write pulse width
Address setup time
Write recovery time (WE)
Write recovery time (CE1, CE2)
Output active from end of write
Write to output in high Z
∗ tWHZ is defined as the time required for outputs to turn to high impedance state and is not referred to as
∗1 Write is executed when both CE1 and WE are at low and CE2 is at high simultaneously.
∗2 Do not apply the data input voltage of the opposite phase to the output while I/O pin is in output condition.
∗3 tWR1 is tested from either the rising edge of CE1 or the falling edge of CE2, whichever comes earlier, until
the end of the write cycle.
– 8 –
Page 9
Data retention waveform
• Low supply voltage data retention waveform (1) (CE1 control)
CDRS
t
VCC
4.5V
2.2V
VDR
CE1
GND
Data retention mode
CE1 ≥ V
CC – 0.2V
• Low supply voltage data retention waveform (2) (CE2 control)
Data retention mode
CC
V
4.5V
CE2
DR
V
CXK582000TM/YM/M
tR
tRtCDRS
0.4V
GND
CE2 ≤ 0.2V
Data Retention Characteristics(Ta = 0 to +70°C)
ItemSymbolTest conditionsMin.Typ.Max.Unit
Data retention voltage
VDR
ICCDR1
∗
VCC = 3.0V∗
2.0
0 to +70°C
1
0 to +40°C
—
—
—
—
—
5.5
24
4.8
V
µA
Data retention current
Data retention setup time
Recovery time
ICCDR2
tCDRS
tR
+25°C
VCC = 2.0 to 5.5V∗
Chip disable to data retention mode