Toshiba BDX2500KU, Service Manual

Page: 33 / 52

IC5101 TC58NVG1S3ETA
I/O
Control circuit
Logic control
CE
CLE
ALE
WE
RE
WP
I/O1
to
I/O8
RY/BY
RY/BY
Control circuit
Command register
Address register
Status register
Column buffer
Column decoder
Data register
Sense amp
Memory cell array
R
o
w a
d
d
re
s
s b
u
ff
e
r
d
e
c
o
d
e
r
R
o
w a
d
d
re
s
s d
e
c
o
d
e
r
HV generator
Vcc Vss
5-9
S
OSCILLATOR
100/340kHz
S Q
R Q
+
-
+
-
+
-
+
-
-
+
+
INTERNAL
REGULATORS
IN
5
FB
SS
8
+
-
1.1V
0.3V
2
1
3
4
-
+
6
EN OK
7
1.2V
CURRENT
COMPARATOR
M2
0.1
W
M1
0.1
W
IN
BS
SW
GND
OVP
IN<4.10V
CLK
RAMP
CURRENT
SENSE
AMPLIFIER
COMP
EN
0925V
.
2.5V
1.5V
ERROR
AMPLIFIER
LOCKOUT
COMPARATOR
SHUTDOWN
COMPARATOR
OVP
6µA
5V
S
7V
Zener
IC8001, IC8002 MP2307DN