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TMS28F400BZT Datasheet(PDF) 2 Page - Texas Instruments

Part No. TMS28F400BZT
Description  8-BIT/262144 BY 16-BIT BOOT-BLOCK FLASH MEMORIES
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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TMS28F400BZT Datasheet(HTML) 2 Page - Texas Instruments

 
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TMS28F400BZT, TMS28F400BZB
524288 BY 8-BIT/262144 BY 16-BIT
BOOT-BLOCK FLASH MEMORIES
SMJS400E – JUNE 1994 – REVISED JANUARY 1998
2
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
description (continued)
Embedded program and block-erase functions are fully automated by an on-chip write state machine (WSM),
simplifying these operations and relieving the system microcontroller of these secondary tasks. WSM status
can be monitored by the on-chip status register to determine progress of program / erase tasks. The device
features user-selectable block erasure.
The TMS28F400BZx flash memory is offered in a 44-pin PSOP. It is available in two temperature ranges:
0
°C to 70°C and – 40°C to 85°C.
device symbol nomenclature
Temperature Range Designator
L=
0
°Cto 70°C
E = – 40
°Cto 85°C
Package Designator
DBJ = Plastic Small-Outline Package
Program/Erase Endurance
B
= 10 000 Cycles
Speed Designator
80 = 80 ns (
±10% VCC tolerance)
90 = 90 ns (
±10% VCC tolerance)
80
B
DBJ
L
TMS28F400BZT
Boot Block Location Indicator
T = Top Location
B = Bottom Location


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