EFST
F49L004UA / F49L004BA
6. FUNCTIONAL BLOCK DIAGRAM
CE
WRITE
PROGRAM / ERASE
HIGH VOLTAGE
CONTROL
INPUT
LOGIC
STATE
MACHING
(WSM)
OE
WE
RESET(for40-TSOP)
STATE
REGISTER
F49L004U(B)A
ADDRESS
LATCH
FLASH
ARRAY
ARRAY
SOURCE
HV
A0~A18
AND
BUFFER
COMMAND
DATA
DECODER
Y-PASS GATE
PGM
DATA
HV
SENSE
AMPLIFIER
COMMAND
DATA LATCH
PROGRAM
DATA LATCH
I / O BUFFER
DQ0~DQ7
Elite Flash Storage Technology Inc.
Publication Date : Sep. 2003
Revision: 1.0
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