參數(shù)資料
型號(hào): 69F1608RPFH
廠商: MAXWELL TECHNOLOGIES
元件分類: PROM
英文描述: 128 Megabit (16M x 8-Bit) Flash Memory Module
中文描述: 16M X 8 FLASH 5V PROM MODULE, 35 ns, DFP24
封裝: DFP-24
文件頁數(shù): 28/33頁
文件大?。?/td> 817K
代理商: 69F1608RPFH
28
All data sheets are subject to change without notice
2005 Maxwell Technologies
All rights reserved.
128 Megabit (16Mx 8-Bit) Flash Memory Module
69F1608
01.07.05 REV 2
RESET
The device offers a reset feature, executed by writing FFh to the command register. When the device is in
Busy state during randomread, programor erase modes, the reset operation will abort these operation. The
contents of memory cells being altered are no longer valid, as the data will be partially programmed or
erased. Internal address registers are cleared to "0"s and data registers to "1"s. The command register is
cleared to wait for the next command, and the Status Register is cleared to value C0h when WP is high.
Refer to table 15 for device status after reset operation. If the device is already in reset state a new reset
command will not be accepted to by the command register. The R/B pin transitions to low for t
RST
after the
Reset command is written. Reset command is not necessary for normal operation. Refer to Figure 29 below
F
IGURE
29. RESET O
PERATION
T
ABLE
15. D
EVICE
S
TATUS
DATA PROTECTION
The device is designed to offer protection fromany involuntary program/erase during power-transitions. An
internal voltage detector disables all functions whenever V
CC
is below about 2V. WP pin provides hardware
protection and is recommended to be kept at V
IL
during power-up and power-down as shown in Figure 30.
The two step command sequence for program/erase provides additional software protection.
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