M87C257 datasheet(1/13 Pages) STMICROELECTRONICS

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M87C257

ADDRESS LATCHED

256K (32K x 8) UV EPROM and OTP EPROM

June 1996

1/13

AI00928B

15

A0-A14

ASVPP

Q0-Q7

VCC

M87C257

G

E

VSS

8

Figure 1. Logic Diagram

INTEGRATED ADDRESS LATCH

FAST ACCESS TIME: 45ns

LOW POWER “CMOS” CONSUMPTION:

– Active Current 30mA

– Standby Current 100

µA

PROGRAMMING VOLTAGE: 12.75V

ELECTRONIC SIGNATURE for AUTOMATED

PROGRAMMING

PROGRAMMING TIMES of AROUND 3sec.

(PRESTO II ALGORITHM)

DESCRIPTION

The M87C257 is a high speed 262,144 bit UV

erasable and electrically programmable EPROM.

The M87C257 incorporates latches for all address

inputs to minimize chip count, reduce cost, and

simplify the design of multiplexed bus systems.

The Window Ceramic Frit-Seal Dual-in-Line pack-

age has a transparent lid which allows the user to

expose the chip to ultraviolet light to erase the bit

pattern. A new pattern can then be written to the

device by following the programming procedure.

For applications where the content is programmed

only one time and erasure is not required, the

M87C257 is offered in Plastic Leaded Chip Carrier,

package.

A0 - A14

Address Inputs

Q0 - Q7

Data Outputs

E

Chip Enable

G

Output Enable

ASVPP

Address Strobe / Program Supply

VCC

Supply Voltage

VSS

Ground

Table 1. Signal Names

PLCC32 (C)

1

28

FDIP28W (F)

Số phần tương tự - M87C257

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	M87C257	164Kb / 22P	Address Latched 256 Kbit (32Kb x8) UV EPROM and OTP EPROM 23-May-2006
	M87C257-10C1TR	164Kb / 22P	Address Latched 256 Kbit (32Kb x8) UV EPROM and OTP EPROM 23-May-2006
	M87C257-10C3TR	164Kb / 22P	Address Latched 256 Kbit (32Kb x8) UV EPROM and OTP EPROM 23-May-2006
	M87C257-10C6TR	164Kb / 22P	Address Latched 256 Kbit (32Kb x8) UV EPROM and OTP EPROM 23-May-2006
	M87C257-10F1TR	164Kb / 22P	Address Latched 256 Kbit (32Kb x8) UV EPROM and OTP EPROM 23-May-2006

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Mô tả tương tự - M87C257

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	M27256	93Kb / 10P	NMOS 256K 32K x 8 UV EPROM Nov-2000
ATMEL Corporation	AT27C256R	251Kb / 9P	256K 32K x 8 OTP CMOS EPROM
Hitachi Semiconductor	HN27C256A	416Kb / 10P	256K(32K x 8-bit) UV and OTP EPROM
Hitachi Semiconductor	HN27C256H	409Kb / 10P	256k (32k x 8-bit) UV and OPT EPROM
STMicroelectronics	M27C801	207Kb / 24P	8 Mbit (1Mb x 8) UV EPROM and OTP EPROM 24-Sep-2007
STMicroelectronics	M87C257	164Kb / 22P	Address Latched 256 Kbit (32Kb x8) UV EPROM and OTP EPROM 23-May-2006
ATMEL Corporation	AT27C256R	415Kb / 15P	256K (32K x 8) OTP EPROM
ATMEL Corporation	AT27LV256A	406Kb / 15P	256K (32K x 8) Low-voltage OTP EPROM
Maxwell Technologies	27C256T	126Kb / 14P	256K (32K x 8-Bit) OTP EPROM
STMicroelectronics	M27C801-100N1	212Kb / 24P	8 Mbit (1Mb x 8) UV EPROM and OTP EPROM 24-Sep-2007

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