W27E257-15 datasheet, PDF - EEWORLD Datasheet

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W27E257-15: Description32K X 8 ELECTRICALLY ERASABLE EPROM; Categorystorage storage; File Size149KB，14 Pages; ManufacturerWinbond Electronics Corporation; Websitehttp://www.winbond.com.tw

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W27E257-15 Overview

32K X 8 ELECTRICALLY ERASABLE EPROM

W27E257-15 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	Winbond Electronics Corporation
Parts packaging code	DIP
package instruction	DIP, DIP28,.6
Contacts	28
Reach Compliance Code	_compli
ECCN code	EAR99
Maximum access time	150 ns
command user interface	NO
Data polling	NO
JESD-30 code	R-PDIP-T28
JESD-609 code	e0
length	37.08 mm
memory density	262144 bi
Memory IC Type	EEPROM
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
Output characteristics	3-STATE
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Encapsulate equivalent code	DIP28,.6
Package shape	RECTANGULAR
Package form	IN-LINE
Parallel/Serial	PARALLEL
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	5 V
Programming voltage	5 V
Certification status	Not Qualified
Maximum seat height	5.33 mm
Maximum standby current	0.0001 A
Maximum slew rate	0.03 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	4.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	NO
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
switch bit	NO
width	15.24 mm

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W27E257

32K

8 ELECTRICALLY ERASABLE EPROM

GENERAL DESCRIPTION

The W27E257 is a high-speed, low-power Electrically Erasable and Programmable Read Only

Memory organized as 32768

8 bits that operates on a single 5 volt power supply. The W27E257

provides an electrical chip erase function. This part was the same EPROM Writer's utilities as the

W27E256.

FEATURES

•

High speed access time:

•

100/120/150 nS (max.)

Read operating current: 15 mA (typ.)

Erase/Programming operating current

1 mA (typ.)

Standby current: 5

µA

(typ.)

Single 5V power supply

•

+14V erase/+12V programming voltage

•

Fully static operation

•

All inputs and outputs directly TTL/CMOS

compatible

•

Three-state outputs

•

Available packages: 28-pin 600 mil DIP and

32-pin PLCC

PIN CONFIGURATIONS

A12

GND

28-pin

DIP

A14

A13

A11

A10

BLOCK DIAGRAM

CONTROL

OUTPUT

BUFFER

A14

VCC

GND

VPP

DECODER

CORE

ARRAY

A V

V A A

A 1 P N C 1 1

7 2 P C C 4 3

4 3 2 1 3 3 3

2 1 0 29

32-pin

PLCC

12 1 1 1 1 1 1 2 22

13 4 5 6 7 8 9 0 21

Q Q G N

1 2 N C

Q Q Q

3 4 5

PIN DESCRIPTION

A11

A10

SYMBOL

A0−A14

Q0−Q7

GND

DESCRIPTION

Address Inputs

Data Inputs/Outputs

Chip Enable

Output Enable

Program/Erase Supply Voltage

Power Supply

Ground

No Connection

Publication Release Date: January 1997

Revision A3

-1-

W27E257-15 Related Products

	W27E257-15	W27E257P-15	W27E257P-12	W27E257P-10	W27E257-12	W27E257-10	W27E257
Description	32K X 8 ELECTRICALLY ERASABLE EPROM	32K X 8 ELECTRICALLY ERASABLE EPROM	32K X 8 ELECTRICALLY ERASABLE EPROM	32K X 8 ELECTRICALLY ERASABLE EPROM	32K X 8 ELECTRICALLY ERASABLE EPROM	32K X 8 ELECTRICALLY ERASABLE EPROM	32K X 8 ELECTRICALLY ERASABLE EPROM
Is it Rohs certified?	incompatible	incompatible	incompatible	incompatible	incompatible	incompatible	-
Maker	Winbond Electronics Corporation	-	Winbond Electronics Corporation	-	Winbond Electronics Corporation	Winbond Electronics Corporation	-
Parts packaging code	DIP	QFJ	QFJ	QFJ	DIP	DIP	-
package instruction	DIP, DIP28,.6	PLASTIC, LCC-32	PLASTIC, LCC-32	QCCJ, LDCC32,.5X.6	0.600 INCH, PLASTIC, DIP-28	0.600 INCH, PLASTIC, DIP-28	-
Contacts	28	32	32	32	28	28	-
Reach Compliance Code	_compli	_compli	_compli	_compli	_compli	_compli	-
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	-
Maximum access time	150 ns	150 ns	120 ns	100 ns	120 ns	100 ns	-
command user interface	NO	NO	NO	NO	NO	NO	-
Data polling	NO	NO	NO	NO	NO	NO	-
JESD-30 code	R-PDIP-T28	R-PQCC-J32	R-PQCC-J32	R-PQCC-J32	R-PDIP-T28	R-PDIP-T28	-
JESD-609 code	e0	e0	e0	e0	e0	e0	-
length	37.08 mm	13.97 mm	13.97 mm	13.97 mm	37.08 mm	37.08 mm	-
memory density	262144 bi	262144 bi	262144 bi	262144 bi	262144 bi	262144 bi	-
Memory IC Type	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM	-
memory width	8	8	8	8	8	8	-
Number of functions	1	1	1	1	1	1	-
Number of terminals	28	32	32	32	28	28	-
word count	32768 words	32768 words	32768 words	32768 words	32768 words	32768 words	-
character code	32000	32000	32000	32000	32000	32000	-
Operating mode	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	-
Maximum operating temperature	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C	-
organize	32KX8	32KX8	32KX8	32KX8	32KX8	32KX8	-
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	-
encapsulated code	DIP	QCCJ	QCCJ	QCCJ	DIP	DIP	-
Encapsulate equivalent code	DIP28,.6	LDCC32,.5X.6	LDCC32,.5X.6	LDCC32,.5X.6	DIP28,.6	DIP28,.6	-
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	-
Package form	IN-LINE	CHIP CARRIER	CHIP CARRIER	CHIP CARRIER	IN-LINE	IN-LINE	-
Parallel/Serial	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL	-
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	225	225	225	NOT SPECIFIED	NOT SPECIFIED	-
power supply	5 V	5 V	5 V	5 V	5 V	5 V	-
Programming voltage	5 V	5 V	5 V	5 V	5 V	5 V	-
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	-
Maximum seat height	5.33 mm	3.56 mm	3.56 mm	3.56 mm	5.33 mm	5.33 mm	-
Maximum standby current	0.0001 A	0.0001 A	0.0001 A	0.0001 A	0.0001 A	0.0001 A	-
Maximum slew rate	0.03 mA	0.03 mA	0.03 mA	0.03 mA	0.03 mA	0.03 mA	-
Maximum supply voltage (Vsup)	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	-
Minimum supply voltage (Vsup)	4.5 V	4.5 V	4.5 V	3 V	4.5 V	3 V	-
Nominal supply voltage (Vsup)	5 V	5 V	5 V	5 V	5 V	5 V	-
surface mount	NO	YES	YES	YES	NO	NO	-
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	-
Temperature level	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	-
Terminal surface	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	-
Terminal form	THROUGH-HOLE	J BEND	J BEND	J BEND	THROUGH-HOLE	THROUGH-HOLE	-
Terminal pitch	2.54 mm	1.27 mm	1.27 mm	1.27 mm	2.54 mm	2.54 mm	-
Terminal location	DUAL	QUAD	QUAD	QUAD	DUAL	DUAL	-
Maximum time at peak reflow temperature	NOT SPECIFIED	30	30	30	NOT SPECIFIED	NOT SPECIFIED	-
switch bit	NO	NO	NO	NO	NO	NO	-
width	15.24 mm	11.43 mm	11.43 mm	11.43 mm	15.24 mm	15.24 mm	-

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