Sony CXK5B81020TM-12, CXK5B81020J Datasheet

CXK5B81020J/TM

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131072-word × 8-bit High Speed Bi-CMOS Static RAM

-12

Description

CXK5B81020J/TM is a high speed 1M bit Bi-CMOS

CXK5B81020J

32 pin SOJ (PIastic)

32 pin TSOP (PIastic)

static RAM organized as 131072 words by 8 bits.
Operating on a single 3.3V supply this asynchronous
IC is suitable for use in high speed and low power
applications.

Features

• Single 3.3V power supply: 3.3V ±0.3V

• Fast access time 12ns (Max.)

• Low standby current: 10mA (Max.)

• Low power operation 864mW (Max.)

• Package line-up

Dual Vcc/Vss
CXK5B81020J 400mil 32pin SOJ package

Function

131072 word × 8-bit static RAM

Structure

Silicon gate Bi-CMOS IC

CXK5B81020TM 400mil 32pin TSOP package

Block Diagram Pin Configuration (Top View) Pin Description

A15
A16
A9
A8
A13
A14
A11
A10

A12
A5

A4
A3

A0
A2

A1
A6
A7

Buffer

Buffer

Row

Decoder

Memory

Matrix

256 × 4096

I/O Gate
Column
Decoder

Vcc

GND

A3

1

A2

2

A1

3

A0

4

CE OE

5

I/O1

6

I/O2

7

Vcc

8

GND

9

I/O3

1
0

11

I/O4
WE

12

A16

13
14

A15

15

A14
A13

16

A4

32

A5

31

A6

30

A7

29

28

I/O8

27

I/O7

26

GND

25
24

Vcc

23

I/O6
I/O5

22

A8

2
1

A9

20

A10

19

A11

18
17

A12

Symbol Description
A0 to A16
I/O1 to I/O8
CE
WE
OE
VCC
GND
NC

Address input
Data input
Chip enable input
Write enable input
Output enable input
+3.3V power supply
Ground
No connection

CXK5B81020TM

WE
OE

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 –

E93707B58-PP

Absolute Maximum Ratings (Ta = 25°C, GND = 0V)

Item Symbol Rating Unit

∗

Supply voltage
Input voltage
Input and output voltage
Allowable power dissipaiton

VCC
VIN
VI/O
PD

–0.5
–0.5

–0.5

∗

1

to VCC + 0.5

∗

1

to VCC + 0.5

1.5

1

to +4.6

∗

2

V
V
V

W

CXK5B81020J/TM

Operating temperature
Storage temperature

Soldering temperature • time

∗

1 Vcc, VIN, VI/O = –2.0V Min. for pulse width less than 5ns.

∗

2 Air flow ≥ 1m/s.

Topr
Tstg

Tsolder

J
TM

0 to +70

–55 to +150

260 • 10
235 • 10

Truth Table

CE OE WE Mode I/O1 to I/O8 Current

H

×

×

Not selected

L

L

H

Read

L

×

L

Write

L

H

H

Output disable

High Z
Data out
Data in
High Z

ISB1, ISB2
ICC
ICC
ICC

×: "H" or "L"

Recommended Operating Conditions (Ta = 0 to +70°C, GND = 0V)

Item Symbol Min. Typ. Max. Unit

Supply voltage

VCC

3.0

3.3

3.6

V

°C

°C
°C • sec
°C • sec

Input high voltage
Input low voltage

∗

VIL = –2.0V Min. for pulse width less than 5ns.

VIH
VIL

2.0

–0.3

∗

—
—

VCC + 0.3

0.8

V
V

– 2 –

CXK5B81020J/TM

Electrical Characteristics

DC Characteristics (Vcc = 3.3V ± 0.3V, GND = 0V, Ta = 0 to +70°C)

—

∗

Max Unit
+10

µA

Item Symbol Conditions Min. Typ.

Input leakage current

ILI

VIN = GND to VCC

–10

CE = VIH or

Output leakage current

ILO

OE = VIH or
WE = VIL

–10

—

+10

µA
VI/O = GND to VCC
Cycle: Min.

Duty = 100%

Average operating current

ICC

IOUT = 0mA

—

—

240

mA
CE = VIL
VIN = VIH or VIL

CE ≥ VCC – 0.2V

ISB1

VIN ≥ VCC – 0.2V or

—

—

10

mA
VIN ≤ 0.2V

Standby current

ISB2

Cycle: Min.

Duty = 100%

CE = VIH

—

—

100

mA
VIN = VIH or VIL

Output high voltage
Output low voltage

∗

Vcc = 3.3V, Ta = 25°C

VOH
VOL

IOH = –2.0mA
IOL = 2.0mA

2.4
—

—
—

—

0.4

V
V

I/O Capacitance (Ta = 25°C, f = 1MHz)

Item Symbol Conditions Min. Typ. Max Unit
Input capacitance
I/O capacitance

CIN
CI/O

VIN = 0V
VI/O = 0V

—
—

—
—

5
7

pF
pF

Note) This parameter is sampled and is not 100% tested.

AC Characteristics

• AC test condition (Vcc = 3.3V ± 0.3V, Ta = 0 to +75°C)

Item Condition
Input pulse high level
Input pulse low level
Input rise time
Input fall time
Input and output reference level

VIH = 3.0V
VIL = 0.0V

tr = 2ns
tf = 2ns

1.4V

I/O Zo = 50Ω

Output load (1)

V

L = 1.4V

L = 50Ω

R

Output Load (2)∗

I/O

2

5pF∗

1

3.3V

1179Ω

868Ω

Output load conditions

Fig. 1

∗1. tLZ, tOLZ, tHZ, tOHZ, tOW, tWHZ
∗2. Including scope and jig capacitances

Fig. 1

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