Sanyo DVD-SL38KR Service Manual page 10

IC BLOCK DIAGRAM & DESCRIPTION
U0104 SST39VF800(FLASH)
Memory Address
Symbol
Pin Name
Address Inputs
AMS -A
1 0
Data Input/output
DQ -DQ
15 0
Chip Enable
CE#
Output Enable
OE#
Write Enable
WE#
Power Supply
V
DD
V Ground
SS
No connection
NC
U0105 AT24C02N-10SL-2.7(EEPROM)
8
Vcc
4
GND
WP
7
SCL
6
SDA 5
A 3
2
A 2
1
A 1
0
D
IN
X-Decoder
Address Buffer
& Latches
CE#
OE# Control Logic
WE#
Function
To provide memory addresses. During Sector-Erase A
lines will select the sector. During Block-Erase A
select the block.
To output data during Read Cycles and receive input data during Write
Cycles.
Data is internally latched during a Write Cycle.
The outputs are in tri-state when OE# or CE# is high.
To activate the device when CE# is low.
To gate the data output buffers.
To control the Write operations.
To provide power supply voltage:
Unconnected pins
START
STOP
LOGIC
LOAD
COMP
DEVICE
ADDRESS
COMPARATOR
R/W
DATA WORD
ADDR/COUNTER
D
OUT
SuperFlash
Y-Decoder
I/O Buffer and Data
DQ
3.0-3.6V for SST39LF200A/400A/800A
2.7-3.6V for SST39LF200A/400A/800A
SERIAL
EN
H,V. PUMP/TIMING
CONTROL
LOGIC
DATA RECOVERY
LOAD INC
SERIAL MUX
Y DEC
- 9 -
Memory
Latches
-DQ
15 0
-A address
MS 11
-A address lines will
MS 15
2
E PROM
D /ACK
OUT
LOGIC