OKI MSM66V84BTS-K, MSM66V84BJS Datasheet
E2D0036-39-21
¡ Semiconductor
¡ Semiconductor
This version: Feb. 1999
Previous version: May. 1997
MSM66V84B
MSM66V84B
4,194,304-word x 1-bit Serial Register
GENERAL DESCRIPTION
MSM66V84B is a serial register organized as 4,194,304 words x one bit, characterized by mediumspeed, low power consumption operation.
This device has a built-in internal address generation circuit allowing continuous serial read/write
operation by external clock input.
Read/write operation causes the internal address to be incremented automatically by +1.
External address input enables addressing in units of 1024 words. Furthermore, a refresh timer and
a refresh address counter are installed, which makes an external refresh circuit unnecessary. In
addition, this configuration allows lower power consumption.
The device is packaged in 26/20-pin SOJ or 26/20 TSOP having a width of 300 mil.
It is well adapted for storing much data by means of a battery backup. Its combination with our
recording and playback LSI enables the easy implementation of a solid recording and playback
system.
FEATURES
• Configuration
4,194,304 x 1 bit
• Serial access operation
Serial access time : 1.5 ms
Serial read/write time : 2.5 ms
• Low current drain
100 mA max. (VCC = 3.6 V with data stored and under standard conditions)
• Refresh operation
A self-refresh function is supported.
• Wide operation voltage range
Single 2.7 to 3.6 V
• Addressing
Units of 1024 words
• Process
0.45 mm double well CMOS process
• Package options :
26/20-pin plastic SOJ (SOJ26/20-P-300-1.27) (Product name : MSM66V84BJS)
26/20-pin plastic TSOP (TSOPII26/20-P-300-1.27-K) (Product name : MSM66V84BTS-K)
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BLOCK DIAGRAM
Refresh Timer
Refresh Address
Counter
TAS
Row Address
Counter
Address
Multiplexer
MSM66V84B
4,194,304
Data Register
Row Decoder
SAD
SAS
RWCK
Row Address
Register
Timing
Generator
Column Decoder
Column Address
Counter
Write Clock
Generator
I/O Control
DIN
DOUT
WE
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PIN CONFIGURATION (TOP VIEW)
TEST 26 V
1
CC
MSM66V84B
1
TEST 26 V
CC
RWCK 25 TEST
2
3NC 24 TEST
4TEST 23 SAD
5TEST 22 SAS
9TEST 18 TAS
10TEST 17 CS
11DIN 16 WE
12NC 15 DOUT
SS
13V
14 NC
NC : No connection
26/20-pin plastic SOJ
RWCK
NC
TEST
TEST
TEST
TEST
DIN
NC
V
SS
2
3 24 TEST
4 23 SAD
522SAS
918TAS
10 17 CS
11 16 WE
12 15 DOUT
13 14 NC
25 TEST
NC : No connection
26/20-pin plastic TSOP
(K type)
PIN DESCRIPTION
Pin
25
1, 4, 5
9, 10, 24
Symbol
TEST
TEST
RWCK
DIN
V
SS
DOUT
WE
CS
TAS
SAS
SAD
V
CC
Test input
Test input
Read/write clock2
Data input11
Ground (0 V)13
Data output15
Write enable16
Chip select17
Transfer address strobe18
Serial address strobe22
Serial address data23
Power supply (2.7 V to 3.6 V)26
Note : All TEST pins are to be connected to the power supply.
The TEST pin is to be referenced to the ground level.
Description
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MSM66V84B
ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Condition Rating Unit
Pin Voltage V
Output Short-Circuit Current Ta = 25 °C 50 mA
Power Dissipation 1 W
Operating Temperature — 0 to 70 °C
Storage Temperature — –55 to +150 °C
T
I
OS
P
T
STG
T
D
op
Against VSS at Ta = 25 °C –0.5 to +4.6 V
Ta = 25 °C
RECOMMENDED OPERATING CONDITIONS
(Ta = 0 to 70°C)
Parameter Symbol Min. Typ. Max. Unit
Supply Voltage V
Supply Voltage 0 0 0
"H" Input Voltage V
"L" Input Voltage –0.2 0 +0.5
CC
V
SS
V
IH
V
IL
2.7 3.0 3.6
– 0.3 V
CC
CC
V
CC
+ 0.2
V
V
V
V
ELECTRICAL CHARACTERISTICS
DC characteristics
Parameter Symbol Condition Min. Max. Unit
"H" Output Voltage V
"L" Output Voltage I
Input Leakage Current I
Output Leakage Current V
Supply Current (Operation) V
Supply Current (Standby) V
V
I
I
CC1
I
CC2
OH
OL
OL
IL
= 3.6 V, t
CC
(V
= 2.7 V to 3.6 V, Ta = 0 to 70°C)
CC
I
= –0.1 mA VCC – 0.5 — V
OH
= 0.1 mA — 0.4 V
OL
VI = 0 V to V
= 0 V to V
O
CC
CC
CC
= 2.5 ms — 10 mA
RWC
= 3.6 V — 100 mA
–1 +1 mA
–1 +1 mA
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