JVC RX-DV31SL Service Manual page 56

6.34 SST39VF160-7CEK (IC509) : 16 Mbit multi-purpose flash memory
• Pin layout
WE#
• Block diagram
Memory Address
• Pin function
Pin Symbol I/O
No.
1-9 A15-A8,A19
10 NC
11 WE#
12-15 NC
16-25 A18,A17,A7-A0
26 CE#
27 VSS
28 OE#
29-36 DQ0,DQ8,DQ1 I/O Data input/output : To output data during Read cycles and receive input data during write cycles.
DQ9,DQ2,DQ10
DQ3,DQ11
37 VDD
38-45 DQ4,DQ12,DQ5 I/O Data input/output : To output data during Read cycles and receive input data during write cycles.
DQ13,DQ6,DQ14
DQ7,DQ15
46 VSS
47 NC
48 A16
1-56 (No.22023)
A15 1
A14 2
A13 3
A12 4
A11 5
A10 6
A9 7
A8 8
A19 9
NC 10
11
NC 12
NC 13
NC 14
NC 15
A18 16
A17 17
A7 18
A6 19
A5 20
A4 21
A3 22
A2 23
A1 24
Address buffer & Latches
CE#
Control Logic
OE#
WE#
I Address inputs : To provide memory addresses.
During Sector-Erase A19-A11 address lines will select the sector.
During Block-Erase, A19-A15 address line will select the block.
- No connection : Unconnected pins
I Write Enable : To control the Write operations
- No connection : Unconnected pins
I Address inputs : To provide memory addresses.
During Sector-Erase A19-A11 address lines will select the sector.
During Block-Erase, A19-A15 address line will select the block.
I Chip Enable : To activate the device when CE# is low.
- Ground
I Output Enable : To gate the data output buffers
Data is internally latched during a write cycle.
The outputs are in tri-state when OE# or CE# is high.
- Power supply : To provide power supply voltage (2.7-3.6V)
Data is internally latched during a write cycle.
The outputs are in tri-state when OE# or CE# is high.
- Ground
- No connection : Unconnected pins
I Address input : To provide memory address.
During Sector-Erase A19-A11 address lines will select the sector.
During Block-Erase, A19-A15 address line will select the block.
Top view
Super flash memory
X-Decoder
I/O Buffers and Data Latches
Function
48 A16
47 NC
46 V
SS
45 DQ15
44 DQ7
43 DQ14
42 DQ6
41 DQ13
40 DQ5
39 DQ12
38 DQ4
37 V
DD
36 DQ11
35 DQ3
34 DQ10
33 DQ2
32 DQ9
31 DQ1
30 DQ8
29 DQ0
28 OE#
27 V
SS
26 CE#
25 A0
Y-Decoder
DQ - DQ
15 0