W24257A-10 WINBOND [Winbond], W24257A-10 Datasheet

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W24257A-10

Manufacturer Part Number
W24257A-10
Description
32K X 8 High Speed CMOS Static RAM
Manufacturer
WINBOND [Winbond]
Datasheet
GENERAL DESCRIPTION
The W24257A is a high speed, low power CMOS static RAM organized as 32768
operates on a single 5-volt power supply. This device is manufactured using Winbond's high
performance CMOS technology.
FEATURES
PIN CONFIGURATIONS
High speed access time: 10/12/15/20 nS (max.)
Low power consumption:
Single 5V power supply
Fully static operation
Active: 400 mW (typ.)
A13
A12
V
A14
A11
WE
OE
A7
A3
A9
A8
DD
A6
A5
A4
I/O2
I/O3
A14
A12
I/O1
V
A5
A7
A6
A4
A3
A0
A2
A1
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28-pin
32K
28-pin
DIP
TSOP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
28
27
26
25
24
23
22
21
20
19
18
17
16
15
8 HIGH SPEED CMOS STATIC RAM
OE
I/O8
I/O7
I/O6
I/O5
I/O4
V
WE
A13
A8
A9
A11
A10
CS
DD
A10
CS
I/O8
I/O7
I/O6
I/O5
I/O4
V
I/O3
I/O2
I/O1
A0
A1
A2
SS
- 1 -
BLOCK DIAGRAM
PIN DESCRIPTION
All inputs and outputs directly TTL compatible
Three-state outputs
Available packages: 28-pin 300 mil SOJ, 330
mil SOP, skinny DIP and standard type one
TSOP (8 mm
I/O1 I/O8
SYMBOL
A0 A14
V
V
WE
OE
CS
DD
SS
A14
CS
A0
OE
WE
V
V
.
.
DD
SS
DECODER
CONTROL
Publication Release Date: May 1997
Address Inputs
Data Inputs/Outputs
Chip Select Input
Write Enable Input
Output Enable Input
Power Supply
Ground
13.4 mm)
DESCRIPTION
ARRAY
DATA I/O
CORE
W24257A
Revision A14
I/O1
I/O8
8 bits that
.
.

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W24257A-10 Summary of contents

Page 1

... GENERAL DESCRIPTION The W24257A is a high speed, low power CMOS static RAM organized as 32768 operates on a single 5-volt power supply. This device is manufactured using Winbond's high performance CMOS technology. FEATURES High speed access time: 10/12/15/20 nS (max.) Low power consumption: Active: 400 mW (typ.) ...

Page 2

... + IL, Cycle = MIN Duty = 100 Cycle = MIN, Duty = 100 -0. 5V W24257A RATING UNIT -0.5 to +7.0 +0.5 DD 1.0 W -65 to +150 0 to +70 V CURRENT SB1 MIN. TYP. MAX. -0 ...

Page 3

... SYM. CONDITIONS I/O OUT SYM CONDITIONS . 1m/sec 1m/sec CONDITIONS 1. pF Publication Release Date: May 1997 - 3 - W24257A MAX. UNIT MAX. UNIT C C mA/8 mA Revision A14 ...

Page 4

... AC TEST LOADS AND WAVEFORM R1 480 ohm 5V OUTPUT 30 pF Including Jig and Scope OUTPUT R2 255 ohm (For T 3.0V 90% 90% 10% 10 W24257A R1 480 ohm 255 ohm Including Jig and Scope OHZ WHZ CLZ OLZ CHZ OW ...

Page 5

... ACS AOE CLZ OLZ - CHZ - OHZ SYM. W24257A-10 W24257A-12 MIN. MAX. MIN. MAX ...

Page 6

... TIMING WAVEFORMS Read Cycle 1 (Address Controlled) 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 - 6 - W24257A CHZ OHZ T CHZ ...

Page 7

... OHZ ( WHZ ( during the write cycle pF. This parameter is guaranteed but not 100% tested. L Publication Release Date: May 1997 - 7 - W24257A T OH (2) ( Revision A14 ...

Page 8

... W24257AJ-20 20 W24257AS-10 10 W24257AS-12 12 W24257AS-15 15 W24257AS-20 20 W24257AQ-10 10 W24257AQ-12 12 W24257AQ-15 15 W24257AQ-20 20 Notes: 1. Winbond reserves the right to make changes to its products without prior notice. 2. Purchasers are responsible for performing appropriate quality assurance testing on products intended for use in applications where personal injury might occur as a consequence of product failure. ...

Page 9

... Seating Plane Base Plane A 1 Mounting Plane £ W24257A Dimension in Inches Dimension in mm Symbol Min. Nom. Max. Min. Nom. Max. A 0.175 4.45 A 0.010 0. 0.125 0.130 0.135 3.18 3.30 3.43 2 0.016 0.018 0.41 0.46 0.56 B 0.022 B ...

Page 10

... Detail See Detail W24257A Dimension in Inches Dimension in mm Symbol Nom. Min. Nom. Max. Min. Max. A 2.85 0.112 A 0.004 0. 0.098 0.103 0.093 2.36 2.49 2. 0.014 0.016 0.020 0.36 0.41 0.51 c 0.008 ...

Page 11

... Note: All data and specifications are subject to change without notice. Winbond Electronics North America Corp. Winbond Memory Lab. Winbond Microelectronics Corp. Winbond Systems Lab. 2730 Orchard Parkway, San Jose, CA 95134, U.S.A. TEL: 1-408-9436666 FAX: 1-408-9436668 Publication Release Date: May 1997 - 11 - W24257A Revision A14 ...

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