M295V400BB90M1T datasheet, PDF

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M295V400BB90M1T: Description256K X 16 FLASH 5V PROM, 70 ns, PDSO48; Categorystorage; File Size151KB，22 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

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M295V400BB90M1T Overview

256K X 16 FLASH 5V PROM, 70 ns, PDSO48

M295V400BB90M1T Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	48
Maximum operating temperature	70 Cel
Minimum operating temperature	0.0 Cel
Maximum supply/operating voltage	5.5 V
Minimum supply/operating voltage	4.5 V
Rated supply voltage	5 V
maximum access time	70 ns
Processing package description	12 × 20 MM, plastic, TSOP-48
state	DISCONTINUED
packaging shape	Rectangle
Package Size	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
surface mount	Yes
Terminal form	GULL WING
Terminal spacing	0.5000 mm
terminal coating	tin lead
Terminal location	pair
Packaging Materials	Plastic/Epoxy
Temperature level	COMMERCIAL
memory width	16
organize	256K × 16
storage density	4.19E6 deg
operating mode	ASYNCHRONOUS
Number of digits	262144 words
Number of digits	256K
Spare memory width	8
Memory IC type	FLASH 5V programmable read-only memory
serial parallel	parallel

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M29F400BT

M29F400BB

4 Mbit (512Kb x8 or 256Kb x16, Boot Block)

Single Supply Flash Memory

SINGLE 5V±10% SUPPLY VOLTAGE for

PROGRAM, ERASE and READ OPERATIONS

ACCESS TIME: 45ns

PROGRAMMING TIME

– 8µs per Byte/Word typical

11 MEMORY BLOCKS

– 1 Boot Block (Top or Bottom Location)

– 2 Parameter and 8 Main Blocks

PROGRAM/ERASE CONTROLLER

– Embedded Byte/Word Program algorithm

– Embedded Multi-Block/Chip Erase algorithm

– Status Register Polling and Toggle Bits

– Ready/Busy Output Pin

TSOP48 (N)

12 x 20mm

SO44 (M)

ERASE SUSPEND and RESUME MODES

– Read and Program another Block during

Erase Suspend

Figure 1. Logic Diagram

UNLOCK BYPASS PROGRAM COMMAND

– Faster Production/Batch Programming

TEMPORARY BLOCK UNPROTECTION

MODE

LOW POWER CONSUMPTION

– Standby and Automatic Standby

100,000 PROGRAM/ERASE CYCLES per

BLOCK

20 YEARS DATA RETENTION

– Defectivity below 1 ppm/year

ELECTRONIC SIGNATURE

– Manufacturer Code: 0020h

– Top Device Code M29F400BT: 00D5h

– Bottom Device Code M29F400BB: 00D6h

A0-A17

VCC

DQ0-DQ14

DQ15A–1

M29F400BT

M29F400BB

BYTE

VSS

AI02904

July 2000

1/22

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