LH5P864N-80 Ver la hoja de datos (PDF) - Sharp Electronics
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Fabricante
LH5P864N-80 Datasheet PDF : 10 Pages
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LH5P864
CMOS 512K (64K × 8) Pseudo-Static RAM
A0 12
A1 11
A2 10
A3 9
A4 8
A5 7
A6 6
A7 5
A8 27
A9 26
A10 23
A11 25
A12 4
A13 28
A14 3
A8 - A14 COLUMN
ADDRESS
BUFFER
ROW
ADDRESS
A0 - A7 BUFFER
REFRESH
ADDRESS
COUNTER
EXT/INT
ADDRESS
MUX
COLUMN
DECODER
SENSE
AMPS
ROW
DECODER
MEMORY
ARRAY
256K
MEMORY
ARRAY
256K
VBB GENERATOR
I/O
SELECTOR
DATA
IN
BUFFER
DATA
OUT
BUFFER
16 GND
32 VCC
13 I/O0
14 I/O1
15 I/O2
17 I/O3
18 I/O4
19 I/O5
20 I/O6
21 I/O7
CE1 22
CE2 30
TEST1 1
CLOCK
GENERATOR
OE/
RFSH
24
R/W 29
REFRESH
CONTROLLER
REFRESH
TIMER
Figure 2. LH5P864 Block Diagram
PIN DESCRIPTION
SIGNAL
A0 - A14
R/W
OE/RFSH
CE1, CE2
I/O0 - I/O7
PIN NAME
Address input
Read/Write Enable input
Output Enable input/Refresh
input
Chip Enable input
Data input/output
SIGNAL
VCC
GND
Test
NC
PIN NAME
Power Supply
Ground
Test Input
No Connection
5P864-2
2
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