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PDF UT621024LC-70LL Data sheet ( Hoja de datos )

Número de pieza UT621024LC-70LL
Descripción 128K X 8 BIT LOW POWER CMOS SRAM
Fabricantes ETC 
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No Preview Available ! UT621024LC-70LL Hoja de datos, Descripción, Manual

UTRON
UT621024
Rev. 1.5
128K X 8 BIT LOW POWER CMOS SRAM
GENERAL DESCRIPTION
FEATURES
The UT621024 is a 1,048,576-bit low power
„ Access time : 35/55/70ns (max.)
„ Low power consumption :
Operating : 60/50/40 mA (typical)
Standby : 2µA (typical) L-version
CMOS static random access memory
organized as 131,072 words by 8 bits. It is
fabricated using high performance, high
reliability CMOS technology.
1µA (typical) LL-version
„ Single 5V power supply
„ All inputs and outputs TTL compatible
„ Fully static operation
„ Three state outputs
The UT621024 is designed for low power
application. It is particularly well suited for
battery back-up nonvolatile memory
application.
„ Data retention voltage : 2V (min.)
„ Package : 32-pin 600 mil PDIP
32-pin 450 mil SOP
32-pin 8mmx20mm TSOP-1
The UT621024 operates from a single 5V
power supply and all inputs and outputs are
fully TTL compatible.
32-pin 8mmx13.4mm STSOP
PIN CONFIGURATION
FUNCTIONAL BLOCK DIAGRAM
A16
A15
A13 .
A14
.A12
A7 ROW
DECODER
A6 .
A5
A4
A8
I/O1
...
... I/O
CONTROL
I/O8
...
MEMORY ARRAY
1024 ROWS× 1024 COLUMNS
. ..
COLUMN I/O
COLUMN DECODER
VCC
VSS
NC 1
A16 2
A14 3
A12 4
A7 5
A6 6
A5 7
A4 8
A3 9
A2 10
A1 11
A0 12
I/O1 13
I/O2 14
I/O3 15
Vss 16
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
PDIP / SOP
CE1
CE2
WE
OE
LOGIC
CONTROL
A10 A11 A9 A3 A2 A1 A0
PIN DESCRIPTION
SYMBOL
A0 - A16
I/O1 - I/O8
CE1 ,CE2
WE
OE
VCC
VSS
NC
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip enable 1,2 Inputs
Write Enable Input
Output Enable Input
Power Supply
Ground
No Connection
A11
A9
A8
A13
WE
CE2
A15
Vcc
NC
A16
A14
A12
A7
A6
A5
A4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
UT621024
TSOP-I/STSOP
32 OE
31 A10
30 CE1
29 I/O8
28 I/O7
27 I/O6
26 I/O5
25 I/O4
24 Vss
23 I/O3
22 I/O2
21 I/O1
20 A0
19 A1
18 A2
17 A3
________________________________________________________________________________________________
UTRON TECHNOLOGY INC.
P80036
1F, No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan, R. O. C.
TEL: 886-3-5777882 FAX: 886-3-5777919
1

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UT621024LC-70LL pdf
UTRON
Rev. 1.5
UT621024
128K X 8 BIT LOW POWER CMOS SRAM
WRITE CYCLE 1 ( WE Controlled) (1,2,3,5)
Address
CE1
CE2
WE
DOUT
DIN
tAS
(4)
tWC
tAW
tCW1
tCW2
tWP
tWHZ
High-Z
tWR
tOW
tDW
Data Valid
tDH
(4)
WRITE CYCLE 2 ( CE1 and CE2 Controlled) (1,2,5)
Address
CE1
CE2
tAS
tWC
tAW
tCW1
tCW2
tWR
WE
DOUT
DIN
tWHZ
(4)
tWP
High-Z
tDW tDH
Data Valid
Notes :
1. WE or CE1 must be HIGH or CE2 must be LOW during all address transitions.
2. A write occurs during the overlap of a low CE1 , a high CE2 and a low WE .
3. During a WE controlled with write cycle with OE LOW, tWP must be greater than tWHZ+tDW to allow the I/O drivers
to turn off and data to be placed on the bus.
4. During this period, I/O pins are in the output state, and input singals must not be applied.
5. If the CE1 LOW transition occurs simultaneously with or after WE LOW transition, the outputs remain in a high
impedance state.
6. tOW and tWHZ are specified with CL=5pF. Transition is measured ± 500mV from steady state.
_________________________________________________________________________________________________
UTRON TECHNOLOGY INC.
P80036
1F, No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan, R. O. C.
TEL: 886-3-5777882 FAX: 886-3-5777919
5

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UT621024LC-70LL arduino
UTRON
Rev. 1.5
UT621024
128K X 8 BIT LOW POWER CMOS SRAM
ORDERING INFORMATION
PART NO.
UT621024PC-35L
UT621024PC-35LL
UT621024SC-35L
UT621024SC-35LL
UT621024LC-35L
UT621024LC-35LL
UT621024LS-35L
UT621024LS-35LL
UT621024PC-55L
UT621024PC-55LL
UT621024SC-55L
UT621024SC-55LL
UT621024LC-55L
UT621024LC-55LL
UT621024LS-55L
UT621024LS-55LL
UT621024PC-70L
UT621024PC-70LL
UT621024SC-70L
UT621024SC-70LL
UT621024LC-70L
UT621024LC-70LL
UT621024LS-70L
UT621024LS-70LL
ACCESS TIME
(ns)
35
35
35
35
35
35
35
35
55
55
55
55
55
55
55
55
70
70
70
70
70
70
70
70
STANDBY CURRENT
(µA)
100
50
100
50
100
50
100
50
100
50
100
50
100
50
100
50
100
50
100
50
100
50
100
50
PACKAGE
32 PIN PDIP
32 PIN PDIP
32 PIN SOP
32 PIN SOP
32 PIN TSOP-I
32 PIN TSOP-I
32 PIN STSOP
32 PIN STSOP
32 PIN PDIP
32 PIN PDIP
32 PIN SOP
32 PIN SOP
32 PIN TSOP-I
32 PIN TSOP-I
32 PIN STSOP
32 PIN STSOP
32 PIN PDIP
32 PIN PDIP
32 PIN SOP
32 PIN SOP
32 PIN TSOP-I
32 PIN TSOP-I
32 PIN STSOP
32 PIN STSOP
_________________________________________________________________________________________________
UTRON TECHNOLOGY INC.
P80036
1F, No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan, R. O. C.
TEL: 886-3-5777882 FAX: 886-3-5777919
11

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