W24L257ACK-20 datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > storage> storage> W24L257ACK-20

W24L257ACK-20: DescriptionStandard SRAM, 32KX8, 20ns, CMOS, PDIP28, 0.300 INCH, SKINNY, PLASTIC, DIP-28; Categorystorage storage; File Size174KB，10 Pages; ManufacturerWinbond Electronics Corporation; Websitehttp://www.winbond.com.tw

Download Datasheet Parametric Compare View All

W24L257ACK-20 Overview

Standard SRAM, 32KX8, 20ns, CMOS, PDIP28, 0.300 INCH, SKINNY, PLASTIC, DIP-28

W24L257ACK-20 Parametric

Parameter Name	Attribute value
Parts packaging code	DIP
package instruction	DIP,
Contacts	28
Reach Compliance Code	unknow
ECCN code	EAR99
Maximum access time	20 ns
JESD-30 code	R-PDIP-T28
JESD-609 code	e3
length	35.26 mm
memory density	262144 bi
Memory IC Type	STANDARD SRAM
memory width	8
Number of functions	1
Number of terminals	28
word count	32768 words
character code	32000
Operating mode	ASYNCHRONOUS
Maximum operating temperature	70 °C
Minimum operating temperature
organize	32KX8
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Package shape	RECTANGULAR
Package form	IN-LINE
Parallel/Serial	PARALLEL
Certification status	Not Qualified
Maximum seat height	4.45 mm
Maximum supply voltage (Vsup)	3.465 V
Minimum supply voltage (Vsup)	3.135 V
Nominal supply voltage (Vsup)	3.3 V
surface mount	NO
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	MATTE TIN
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
width	7.62 mm
Base Number Matches	1

Preview

Download Datasheet

View All

W24L257AC

32K

8 HIGH SPEED CMOS STATIC RAM

GENERAL DESCRIPTION

The W24L257AC is a high speed, low power CMOS static RAM organized as 32768

8 bits that

operates on a single 3.3-volt power supply. This device is manufactured using Winbond's high

performance CMOS technology.

FEATURES

•

High speed access time: 12/15/20 nS (max.)

Low power consumption:

−

Active: 200 mW (typ.)

Single

+3.3V

power supply

Fully static operation

•

All inputs and outputs directly TTL compatible

Three-state outputs

Available packages: 28-pin 300 mil SOJ,

skinny DIP and standard type one TSOP

(8 mm

13.4 mm)

PIN CONFIGURATIONS

BLOCK DIAGRAM

A14

A12

I/O1

I/O2

I/O3

28-DIP

A13

A11

A10

I/O8

I/O7

I/O6

I/O5

I/O4

A14

DECODER

CORE

ARRAY

CONTROL

DATA I/O

I/O1

I/O8

PIN DESCRIPTION

SYMBOL

DESCRIPTION

Address Inputs

Data Inputs/Outputs

Chip Select Input

Write Enable Input

Output Enable Input

Power Supply

Ground

A0−A14

I/O1−I/O8

A11

A13

A14

A12

28-pin

TSOP

A10

I/O8

I/O7

I/O6

I/O5

I/O4

I/O3

I/O2

I/O1

-1-

Publication Release Date: November 1998

Revision A1

W24L257ACK-20 Related Products

	W24L257ACK-20	W24L257ACK-12	W24L257ACQ-12	W24L257ACJ-20	W24L257ACQ-20	W24L257ACJ-12	W24L257ACK-15	W24L257ACJ-15	W24L257ACQ-15
Description	Standard SRAM, 32KX8, 20ns, CMOS, PDIP28, 0.300 INCH, SKINNY, PLASTIC, DIP-28	Standard SRAM, 32KX8, 12ns, CMOS, PDIP28, 0.300 INCH, SKINNY, PLASTIC, DIP-28	Standard SRAM, 32KX8, 12ns, CMOS, PDSO28, 8 X 13.40 MM, TSOP1-28	Standard SRAM, 32KX8, 20ns, CMOS, PDSO28, 0.300 INCH, SOJ-28	Standard SRAM, 32KX8, 20ns, CMOS, PDSO28, 8 X 13.40 MM, TSOP1-28	Standard SRAM, 32KX8, 12ns, CMOS, PDSO28, 0.300 INCH, SOJ-28	Standard SRAM, 32KX8, 15ns, CMOS, PDIP28, 0.300 INCH, SKINNY, PLASTIC, DIP-28	Standard SRAM, 32KX8, 15ns, CMOS, PDSO28, 0.300 INCH, SOJ-28	Standard SRAM, 32KX8, 15ns, CMOS, PDSO28, 8 X 13.40 MM, TSOP1-28
Parts packaging code	DIP	DIP	TSOP	SOJ	TSOP	SOJ	DIP	SOJ	TSOP
package instruction	DIP,	DIP,	TSOP1,	SOJ,	TSOP1,	SOJ,	DIP,	SOJ,	TSOP1,
Contacts	28	28	28	28	28	28	28	28	28
Reach Compliance Code	unknow	unknow	unknow	unknow	unknow	unknow	unknow	unknow	unknow
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Maximum access time	20 ns	12 ns	12 ns	20 ns	20 ns	12 ns	15 ns	15 ns	15 ns
JESD-30 code	R-PDIP-T28	R-PDIP-T28	R-PDSO-G28	R-PDSO-J28	R-PDSO-G28	R-PDSO-J28	R-PDIP-T28	R-PDSO-J28	R-PDSO-G28
length	35.26 mm	35.26 mm	11.8 mm	18.03 mm	11.8 mm	18.03 mm	35.26 mm	18.03 mm	11.8 mm
memory density	262144 bi	262144 bi	262144 bi	262144 bi	262144 bi	262144 bi	262144 bi	262144 bi	262144 bi
Memory IC Type	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM
memory width	8	8	8	8	8	8	8	8	8
Number of functions	1	1	1	1	1	1	1	1	1
Number of terminals	28	28	28	28	28	28	28	28	28
word count	32768 words	32768 words	32768 words	32768 words	32768 words	32768 words	32768 words	32768 words	32768 words
character code	32000	32000	32000	32000	32000	32000	32000	32000	32000
Operating mode	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS
Maximum operating temperature	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C
organize	32KX8	32KX8	32KX8	32KX8	32KX8	32KX8	32KX8	32KX8	32KX8
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	DIP	DIP	TSOP1	SOJ	TSOP1	SOJ	DIP	SOJ	TSOP1
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	IN-LINE	IN-LINE	SMALL OUTLINE, THIN PROFILE	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE	SMALL OUTLINE	IN-LINE	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE
Parallel/Serial	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	4.45 mm	4.45 mm	1.2 mm	3.56 mm	1.2 mm	3.56 mm	4.45 mm	3.56 mm	1.2 mm
Maximum supply voltage (Vsup)	3.465 V	3.465 V	3.465 V	3.465 V	3.465 V	3.465 V	3.465 V	3.465 V	3.465 V
Minimum supply voltage (Vsup)	3.135 V	3.135 V	3.135 V	3.135 V	3.135 V	3.135 V	3.135 V	3.135 V	3.135 V
Nominal supply voltage (Vsup)	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
surface mount	NO	NO	YES	YES	YES	YES	NO	YES	YES
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal form	THROUGH-HOLE	THROUGH-HOLE	GULL WING	J BEND	GULL WING	J BEND	THROUGH-HOLE	J BEND	GULL WING
Terminal pitch	2.54 mm	2.54 mm	0.55 mm	1.27 mm	0.55 mm	1.27 mm	2.54 mm	1.27 mm	0.55 mm
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
width	7.62 mm	7.62 mm	8 mm	7.62 mm	8 mm	7.62 mm	7.62 mm	7.62 mm	8 mm
Base Number Matches	1	1	1	1	1	1	1	1	1
JESD-609 code	e3	e3	e3	-	e3	-	e3	-	e3
Terminal surface	MATTE TIN	MATTE TIN	MATTE TIN	-	MATTE TIN	-	MATTE TIN	-	MATTE TIN

Recommended Resources

Floating input circuit (5V power supply)

Sensor PGA204/205 type programmable gain instrument amplifier circuit

L4970A constitutes a typical application circuit diagram with an output of 5.1V and 10A

High efficiency battery charger circuit

Lamp surge current suppression circuit

4~20mA current loop output conversion circuit

How to use photodiodes instead of infrared integrated receivers?: In general, infrared communication uses infrared transmitters to send signals and integrated receivers to receive signals. This is a common method. However, in low-power design, to achieve real-time c...; 我再做游客 Embedded System

Watching a 150kg robot "getting beaten" - Robust lateral balance - EEWORLD University: 150 kg robot "takes a beating" - robust lateral balance : https://training.eeworld.com.cn/course/1978[size=4][b]In the DARPA Robotics Challenge, a 150 kg robot became the only robot that was not knock...; chenyy Robotics Development

Assignment problem in vhdl: The book says that the following process can complete a hardware averaging function. Each clock pulse inputs a value from a, and the average of the four values will be obtained after 4 clock pulses. B...; number1 Embedded System

I want to fully mention the LTM4619 power chip, please recommend: Dear experts, I want to completely replace the power chip LTM4619 recently. Can you recommend one?...; 815131813 Analogue and Mixed Signal

MP2225 chip output problem! .: I recently used the MP2225 chip as a power chip to convert DC12V to DC5V. After soldering the circuit and connecting it to the 12V input, it initially output 5V, but after a while it outputs 12V direc...; 燕园技术宅 Power technology

Arduino - Who's playing?: Recently, I often hear friends around me talking about Arduino, so I searched Baidu and felt that Arduino is a platform that allows people to have fun. On this platform, the technical requirements may...; soso MCU

Shortcut: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ

Popular Components