ut62256c ETC-unknow, ut62256c Datasheet

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ut62256c

Manufacturer Part Number
ut62256c
Description
Power Cmos Sram
Manufacturer
ETC-unknow
Datasheet

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Rev. 1.0
FEATURES
FUNCTIONAL BLOCK DIAGRAM
A6
I/O1
I/O8
PIN DESCRIPTION
____________________________________________________________________________________________
UTRON TECHNOLOGY INC.
TEL: 886-3-5777882
A4
A3
A14
A13
A12
A7
A5
A8
OE
CE
WE
. . .
1F, No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan, R. O. C.
Operating : 40/30 mA (typical.)
Access time : 35/70ns (max.)
Low power consumption:
Standby : 3mA (typical) normal
Single 5V power supply
All inputs and outputs are TTL compatible
Fully static operation
Three state outputs
Data retention voltage : 2V (min.)
Package : 28-pin 600 mil PDIP
I/O1 - I/O8
. . .
SYMBOL
A0 - A14
DECODER
CONTROL
CONTROL
LOGIC
WE
V
V
ROW
CE
OE
I/O
CC
SS
28-pin 330 mil SOP
28-pin 8mmx13.4mm STSOP
2uA (typical) L-version
1uA (typical) LL-version
.
.
.
. . .
UTRON
A10
FAX: 886-3-5777919
Address Inputs
Data Inputs/Outputs
Chip Enable Input
Write Enable Input
Output Enable Input
Power Supply
Ground
512 ROW S × 512 COLUMNS
A9
COLUMN DECODER
.
DESCRIPTION
MEMORY ARRAY
COLUMN I/O
A11
. .
A2 A1 A0
32K X 8 BIT LOW POWER CMOS SRAM
V SS
V CC
1
GENERAL DESCRIPTION
The UT62256C is a 262,144-bit low power
CMOS static random access memory
organized as 32,768 words by 8 bits. It is
fabricated using high performance, high
reliability CMOS technology.
The UT62256C is designed for high-speed
and low power application. It is particularly
well suited for battery back-up nonvolatile
memory application.
The UT62256C operates from a single 5V
power supply and all inputs and outputs are
fully TTL compatible
PIN CONFIGURATION
OE
A11
A13
A14
A12
WE
Vcc
A9
A8
A7
A6
A5
A4
A3
10
12
13
14
11
1
2
3
4
5
6
7
8
9
I/O1
I/O2
I/O3
A14
A12
Vss
A7
A6
A5
A4
A3
A2
A1
A0
UT62256C
10
12
13
14
11
1
2
3
4
5
6
7
8
9
PDIP/SOP
STSOP
UT62256C
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A13
A11
A10
I/O8
I/O7
I/O6
I/O5
I/O4
Vcc
WE
OE
A9
CE
A8
P80027
28
27
26
25
24
23
22
21
20
19
18
17
16
15
I/O4
I/O3
A10
I/O8
I/O6
I/O5
I/O2
I/O1
I/O7
Vss
CE
A0
A1
A2

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ut62256c Summary of contents

Page 1

... No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5777882 FAX: 886-3-5777919 32K X 8 BIT LOW POWER CMOS SRAM GENERAL DESCRIPTION The UT62256C is a 262,144-bit low power CMOS static random access memory organized as 32,768 words by 8 bits fabricated using high performance, high reliability CMOS technology. ...

Page 2

... I/O Tcycle CE = 0.2V 0mA I/O =500ns other pins at 0.2V or Tcycle V -0.2V CC =1ms normal ≧ V -0.2V CC -L/- ≧ V -0.2V CC -LL 2 UT62256C UNIT V ℃ ℃ 260 ℃ SUPPLY CURRENT ISB, ISB1 MIN. TYP. MAX. UNIT 2.2 - VCC+0 0.5 - ...

Page 3

... UT62256C-35 UT62256C-70 MIN. MAX OW WHZ* 3 UT62256C UNIT -1mA/4mA OH OL UNIT MIN. MAX UNIT MIN. MAX ...

Page 4

... X 8 BIT LOW POWER CMOS SRAM (1,2, Data Valid Controlled) (1,3,5, CHZ t OH Data valid IL 5pF. Transition is measured ± 500mV from steady state less than less than t CHZ CLZ OHZ 4 UT62256C OHZ High-Z is the limiting parameter. OLZ. P80027 ...

Page 5

... High-Z WHZ Data Valid (1,2, High Data Valid must be greater than 5pF. Transition is measured ± 500mV from steady state. 5 UT62256C allow the drivers WHZ DW transition, the WE LOW P80027 ...

Page 6

... FAX: 886-3-5777919 32K X 8 BIT LOW POWER CMOS SRAM MIN. TYP. MAX. UNIT 2.0 CE ≧ V -0.2V CC Vcc= ≧ V -0.2V CC See Data Retention 0 Waveforms (below) t RC* Data Retention Mode V ≧ ≧ V -0. UT62256C - 5 µ 0.5 20 µ 4. P80027 ...

Page 7

... UT62256C P80027 ...

Page 8

... UT62256C o P80027 ...

Page 9

... E 0.315 ± 0.004 e 0.022 (TYP) D 0.528 ± 0.008 2 L 0.020 ± 0.004 2 L1 0.0315 ± 0.004 2 y 0.08(MAX 〜 5 Θ 9 UT62256C MM(REF) 1.20 (MAX) 0.10 ± 0.05 1.00 ± 0.05 0.15(TYP) 0.254(TYP) 11.80 ± 0.10 8.00 ± 0.10 0.55(TYP) 13.40 ± 0.20 0.50 ± 0.10 0.80 ± 0.10 0.003(MAX 〜 5 P80027 ...

Page 10

... UT62256CPC-70 UT62256CPC-70L UT62256CPC-70LL UT62256CSC-35 UT62256CSC-35L UT62256CSC-35LL UT62256CSC-70 UT62256CSC-70L UT62256CSC-70LL UT62256CLS-35L UT62256CLS-35LL UT62256CLS-70L UT62256CLS-70LL _____________________________________________________________________________________________ UTRON TECHNOLOGY INC. 1F, No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5777882 FAX: 886-3-5777919 32K X 8 BIT LOW POWER CMOS SRAM STANDBY CURRENT (µ ...

Page 11

... STSOP. _____________________________________________________________________________________________ UTRON TECHNOLOGY INC. 1F, No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5777882 FAX: 886-3-5777919 32K X 8 BIT LOW POWER CMOS SRAM DESCRIPTION and I have been revised. CC1 CC2 11 UT62256C DATE Apr. 26,2001 MAY. 14,2001 P80027 ...

Page 12

... UTRON Rev. 1.0 THIS PAGE IS LEFT BLANK INTENTIONALLY. _____________________________________________________________________________________________ UTRON TECHNOLOGY INC. 1F, No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5777882 FAX: 886-3-5777919 32K X 8 BIT LOW POWER CMOS SRAM 12 UT62256C P80027 ...

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