NAD L 70 Service Manual page 30

HY29F400 (FLASH MEMORY : IC03)
PIN CONFIGURATIONS
BLOCK DIAGRAM
A[17:0], A-1
DQ[15:0]
C O M M A N D
W E #
CE#
OE#
BYTE#
RESET#
RY/BY#
V
C C
STATE
C O N T R O L
REGISTER
P R O G R A M
V O L T A G E
G E N E R A T O R
DETECTOR TIMER
ERASE VOLTAGE
G E N E R A T O R A N D
S E C T O R S W I T C H E S
I/O CONTROL
Y - D E C O D E R
A[17:0], A-1
X - D E C O D E R
2-31
DQ[15:0]
I/O BUFFERS
DATA LATCH
Y-GATING
4 Mb FLASH
M E M O R Y
A R R A Y