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M29F400B bảng dữ liệu(PDF) 20 Page - STMicroelectronics

tên linh kiện M29F400B
Giải thích chi tiết về linh kiện  4 Mbit 512Kb x8 or 256Kb x16, Boot Block Single Supply Flash Memory
PDF  34 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M29F400B bảng dữ liệu(HTML) 20 Page - STMicroelectronics

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AI01869C
E
G
W
A0-A17/
A–1
DQ0-DQ7/
DQ8-DQ15
VALID
VALID
VCC
tVCHEL
tWHEH
tWHWL
tELWL
tAVWL
tWHGL
tWLAX
tWHDX
tAVAV
tDVWH
tWLWH
tGHWL
RB
tWHRL
Figure 7. Write AC Waveforms, W Controlled
Note: Address are latched on the falling edge of W, Data is latched on the rising edge of W.
POWER SUPPLY
Power Up
The memory Command Interface is reset on power
up to Read Array. Either E or W must be tied to VIH
during Power Up to allow maximum security and
the possibility to write a command on the first rising
edge of E and W. Any write cycle initiation is
blocked when Vcc is below VLKO.
Supply Rails
Normal precautions must be taken for supply volt-
age decoupling; each device in a system should
have the VCC rail decoupled with a 0.1
µF capacitor
close to the VCC and VSS pins. The PCB trace
widths should be sufficient to carry the VCC pro-
gram and erase currents required.
20/34
M29F400T, M29F400B



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