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PDF UM6168 Data sheet ( Hoja de datos )

Número de pieza UM6168
Descripción 4K x 4 High Speed CMOS SRAM
Fabricantes UMC 
Logotipo UMC Logotipo



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No Preview Available ! UM6168 Hoja de datos, Descripción, Manual

SUMO
=======:: UM6168
4K x 4 High Speed CMOS SRAM rlJ"l~
Features
• High·speed - 35/40/45/55170 ns
• Low power dissipation
225mW (typ.) operating
100p.W (typ.) standby
• Single 5V power supply
• Fully static operation
• All inputs and outputs directly TTL compatible
• Three state outputs
• Data retention supply voltage: 2.0 ~ 5.5V
General Description
The UMC UM6168 is a 16,384 bit static random access
memory organized as 4096 words by 4 bits and operates
from a single 5 volt supply. It is built with UMC's high
performance twin tub CMOS process. Inputs and three·
state outputs are TTL compatible. The UM6168 is moulded
in a standard 20·pin, 300 mil·DIP.
Pin Configuration
Block Diagram
Vcc
All
AlO
A9
As
1/04
1/03
1/02
1/01
WE
Ao
Al
A2
A3
A4
AlO
Au
1/01
1/0 2
1/0 3
1/04
CS
WE
ROW
SELECT
MEMORY ARRAY
128 ROWS
128 COLUMNS
- . - - Vcc
-.-- GND
2-55

1 page




UM6168 pdf
A.C. Test Conditions
Test
Input Pulse Levels
Input Rise and Fall Times
Input Timing>IAeference Levels
Output Reference Levels
Output Load
Typ.
GND to 30V
5ns
1.5V
1.5V
See Figures 1 and 2
UM6168
+5V
~480U
°OUT
255U 5pF
Figure 1. Output Load
Figure 2. Output Load
(for t MZ, tLZ, twz, and tow)
* Including scope and jig.
Low Vee Data Retention Characteristics. For L Version Only (TA = 0 to 70°C)
Symbol
VOR
ICCDA
tCOA
tR
Parameter
Vcc for Data Retention
Data Retention Current
Chip Desel,ect to Data Retention Time
Operation Recovery Time
Test Conditions
CS ~ VCC -0.2V
V IN ~ Vee -0.2V or ~ O.2V
Min.
2.0
-
-
0
tRC 4
Notes: 1. TA = 25°C, 2.atVcc =2V, 3. Vce =3V, 4. tRC = Read Cycle Time
Typ.1
-
09
1.03
-
-
Max.
-
202
303
-
~
Units
V
p.A
ns
ns
Timing Waveform Low Vee Data Retention Waveform
j~ATA RETENTION MOOEt
VCC 4.5V. VOR ~ 2V _ 4.5V
I--tco tR-I
cs I~""'Z""'Z"""-Z""Z""'/"""'V-IH-\
VOR /"'~VI-H\~\~\~\~\~\
Ordering Information
Part Number
UM6168
UM6168-1
UM6168-2'
UM6168-3
UM6168-4
UM6168L
UM6168L-1
UM6168L-2
UM6168L-3
UM6168L-4
Access Time
(Max.)
70 ns
55 ns
45 ns
40 ns
35 ns
70 ns
55 ns
45 ns
40 ns
35 ns
Operating Current
(Max.)
90mA
90mA
90mA
90mA
90mA
90mA
90mA
90mA
90mA
90mA
Standby Current
(Max.)
2mA
2mA
~mA
2mA
2mA
50p.A
50p.A
50J,tA
50J,tA
50J,tA
Package Type
Plastic
Plastic
Plastic
Plastic
Plastic
Plastic
Plastic
Plastic
Plastic
Plastic
2-59

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