Mitsubishi Electric LC62 CHASSIS XL6500LU Service Manual page 98

IC442 MP40ES
IN 2
Internal
Slope
Regulators
Compensation
Oscillator
40/400kHz
CLK
Shutdown
Comparator
µA
0.7V
EN 7
2.30/2.53V
Lockout
Comparator
0.7V .22V
Frequency
Error Amplifier
Foldback
gm= 630µA/Volt
Comparator
5
FB
IC444 DS37U+T&R

X
÷4
2
X2
Oscillator
8
V CC
Power
4
GND
Alarm/
3 Watchdog
WDS
Stat/Ctrl
5
SDA
2
I C
6
Interface
SCL
IC74 S29AL032D70TFI030H@PW288B30
RY/BY#
5
37
V CC
27,46
V SS
2
RESET#

State
WE#
Control
47
BYTE#
Command
Register
26
CE#
28
OE#
Vcc Detector
~0,6~25,48
A0–A20
∑
Current
5V
Sense
Amplifier
S Q
R
Q
Current
Comparator
.8V
6 8
COMP N/C
32,768Hz
892Hz
4096Hz
Hz
÷2 ÷4096
Hz
WACE
4096Hz
M
Hz
U
4096
X
WD/ALM
Sector Switches
Erase Voltage
Generator
PGM Voltage
Generator
Chip Enable
Output Enable
Logic
Y-Decoder
STB
Timer
X-Decoder
 BS
M
3 SW
M2
4 GND
M
7
SQW/INT
U
SQW
M
X
U N
X
CLR
32-Bit
Counter
AIE
24-Bit
Counter
INT
CLR
INTCN
DQ0-DQ5 (A-)
29~36,
38~45
Input/Output
Buffers
Data
STB
Latch
Y-Gating
Cell Matrix
- B4 -
IC443 BD45275G-TR
VDD
5
oscillator
counter timer
Vref
3 
GND ER
IC448 NC7SZ02P5X(PBF)
A 
B 2
GND 3
Function Table
Inputs
A B
L L
L H
H L
H H
H : HIGH Logic Level
L : LOW Logic Level
4
Vout
2
SUB
5 VCC
4 Y
Output
Y
H
L
L
L