w24257 ETC-unknow, w24257 Datasheet

no-image

w24257

Manufacturer Part Number
w24257
Description
Ic Sram 256kbit 70ns 28sop
Manufacturer
ETC-unknow
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
W24257
Manufacturer:
LSI
Quantity:
964
Part Number:
w24257-10L
Quantity:
5 960
Part Number:
w24257-10L
Quantity:
5 960
Part Number:
w24257-10L
Manufacturer:
TI
Quantity:
2 596
Part Number:
w24257-14
Manufacturer:
WINBOND
Quantity:
5 530
Part Number:
w24257-70LL
Manufacturer:
WINBOND/华邦
Quantity:
20 000
Part Number:
w24257-70LL
Quantity:
33
Part Number:
w24257AJ -15
Manufacturer:
WINBOND/华邦
Quantity:
20 000
Part Number:
w24257AJ-12
Manufacturer:
WB
Quantity:
1 000
Part Number:
w24257AJ-12
Manufacturer:
WINBOND/华邦
Quantity:
20 000
Part Number:
w24257AJ-15
Manufacturer:
CY
Quantity:
44
GENERAL DESCRIPTION
The W24257 is a slow speed, low power CMOS static RAM organized as 32768 × 8 bits that operates
on a single 5-volt power supply. This device is manufactured using Winbond's high performance
CMOS technology.
FEATURES
PIN CONFIGURATION
Low power consumption:
Access time: 70 nS (max.)
Single +5V power supply
Fully static operation
Active: 325 mW (max.)
Standby: 75 µW (max.) (LL-version)
A14
A12
I/O1
I/O2
I/O3
V
A5
A7
A6
A4
A3
A2
A1
A0
SS
150 µW (max.) (L-version)
1
2
4
6
7
8
12
13
3
5
9
10
11
14
22
19
15
28
26
25
24
21
20
18
17
16
27
23
A13
A9
A11
A10
CS
I/O8
I/O6
I/O5
I/O4
V
WE
A8
OE
I/O7
DD
32K × 8 CMOS STATIC RAM
- 1 -
BLOCK DIAGRAM
PIN DESCRIPTION
All inputs and outputs directly TTL compatible
Three-state outputs
Battery back-up operation capability
Data retention voltage: 2V (min.)
Packaged in 28-pin 330 mil SOP,
standard type one TSOP (8 mm x 13.4 mm )
I/O1−I/O8
SYMBOL
A0−A14
V
V
WE
OE
CS
DD
SS
A14
CS
WE
V
V
OE
A0
DD
SS
.
.
DECODER
CONTROL
Publication Release Date: May 2000
Address Inputs
Data Inputs/Outputs
Chip Select Input
Write Enable Input
Output Enable Input
Power Supply
Ground
DESCRIPTION
ARRAY
DATA I/O
CORE
W24257
Revision A14
I/O1
I/O8
.
.

Related parts for w24257

w24257 Summary of contents

Page 1

... GENERAL DESCRIPTION The W24257 is a slow speed, low power CMOS static RAM organized as 32768 × 8 bits that operates on a single 5-volt power supply. This device is manufactured using Winbond's high performance CMOS technology. FEATURES • Low power consumption: − Active: 325 mW (max.) Standby: 75 µ ...

Page 2

... (max +4 -1 (min.), IL I Cycle = min., Duty = 100 (min.) IH Cycle = min., Duty = 100% CS ≥ -0. 25° W24257 V CURRENT UNIT V +0 °C °C MIN. TYP. MAX. UNIT -0 ...

Page 3

... SYM. CONDITIONS I/O OUT 0. 100 pF OUTPUT (For T CLZ 90% 90% 10% 10 W24257 MAX. UNIT CONDITIONS / mA 1000 ohm 660 ohm Including Jig and Scope , OLZ CHZ ...

Page 4

... OHZ SYMBOL W24257-70 MIN CS WHZ OHZ W24257 UNIT MAX UNIT MAX ...

Page 5

... Address D OUT Read Cycle 2 (Chip Select Controlled OUT Read Cycle 3 (Output Enable Controlled) Address OUT ACS T CLZ AOE T OLZ T ACS T CLZ Publication Release Date: May 2000 - 5 - W24257 CHZ OHZ T CHZ Revision A14 ...

Page 6

... Transition is measured ±500 mV from steady state with OHZ ( WHZ during the write cycle pF. This parameter is guaranteed but not 100% tested W24257 T OH (2) (3) ...

Page 7

... CDR V CS1 > -0.2V = OPERATING STANDBY CURRENT CURRENT µA ) MAX. (mA) MAX Publication Release Date: May 2000 - 7 - W24257 MIN. TYP. MAX. UNIT 2 µ µ PACKAGE 330 mil SOP 330 mil SOP Standard type one TSOP ...

Page 8

... A10 I/O7 CSB W24257 X Y -232.25 1445.22 -351.70 1445.22 -471.15 1445.22 -590.60 1445.22 -710.05 1445.22 -829.50 1445.22 -992.79 1362.24 -992.79 -1306.11 -857.86 -1452.79 -738.41 -1452.79 -594.84 -1414.13 -451.06 -1414.13 -310.67 -1414 ...

Page 9

... E 1 See Detail F Symbol θ Controlling dimension: Millimeters W24257 Dimension in Inches Dimension in mm Symbol Min. Nom. Max. Min. Nom. Max. 0.112 2.85 A 0.004 0. 0.093 0.098 0.103 2.36 2.49 2.62 2 0.014 0.016 0.020 0.36 0.41 0. ...

Page 10

... Note: All data and specifications are subject to change withou t notice. PAGE DESCRIPTION Change the Remove the W24257-10 spc. 7 Typo correction in Standby Current Max.: mA->µ Delete 28-pin DIP Package 8 Add in Bonding Pad Diagram Winbond Electronics (H.K.) Ltd. Winbond Electronics (H.K.) Ltd. Winbond Electronics North America Corp. ...

Related keywords