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PDF HMS12864F8VL Data sheet ( Hoja de datos )
| Número de pieza | HMS12864F8VL | |
| Descripción | SRAM MODULE 1MByte | |
| Fabricantes | Hanbit Electronics | |
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HANBit
HMS12864F8VL
SRAM MODULE 1MByte (128K x 64 bit), 120-Pin SMM, 3.3V
Part No. HMS12864F8VL
GENERAL DESCRIPTION
The HMS12864F8VL is a high-speed static random access memory (SRAM) module containing 131,072 words organized in
a x 64-bit configuration. The module consists of eight 128K x 8 SRAMs mounted on a 120-pin, both-sided, FR4-printed circuit
board.
Byte write enable inputs,(/WE0,/WE1,/WE2,/WE3,/WE4,/WE5,/WE6,/WE7) are used to enable the module’s 8 bits
independently. Output enable(/OE) and write enable(/WE) can set the memory input and output.
Data is written into the SRAM memory when write enable (/WE) and chip enable (/CE) inputs are both LOW. Reading is
accomplished when /WE remains HIGH and /CE and output enable (/OE) are LOW.
For reliability, this SRAM module is designed as multiple power and ground pin. All module components may be powered from
a single +3.3V DC power supply and all inputs and outputs are fully TTL-compatible.
FEATURES
w Access times : 70 and 100ns
w High-density 1MByte design
w High-reliability, high-speed design
w Single + 3.3V ±0.3V power supply
w Easy memory expansion with /CE and
/OE functions
w All inputs and outputs are TTL-compatible
w Industry-standard pin-out
www.DwatFaSRh4e-ePtC4UB.cdoemsign
OPTIONS
MARKING
w Timing
70ns access
100ns access
- 70
-100
w Packages
120-pin SMM
F
PIN ASSIGNMENT
P1 P2
PIN Symbol PIN Symbol PIN Symbol PIN Symbol
1 Vcc 31 Vss 1 Vcc 31 Vss
2 DQ32 32 DQ7 2 DQ24 32 DQ63
3 DQ33 33 DQ6 3 DQ25 33 DQ62
4 DQ34 34 DQ5 4 DQ26 34 DQ61
5 DQ35 35 DQ4 5 DQ27 35 DQ60
6 DQ36 36 DQ3 6 DQ28 36 DQ59
7 DQ37 37 DQ2 7 DQ29 37 DQ58
8 DQ38 38 DQ1 8 DQ30 38 DQ57
9 DQ39 39 DQ0 9 DQ31 39 DQ56
10 Vcc 40 Vss 10 Vcc 40 Vss
11 DQ40 41 DQ15 11 DQ16 41 DQ55
12 DQ41 42 DQ14 12 DQ17 42 DQ54
13 DQ42 43 DQ13 13 DQ18 43 DQ53
14 DQ43 44 DQ12 14 DQ19 44 DQ52
15 DQ44 45 DQ11 15 DQ20 45 DQ51
16 DQ45 46 DQ10 16 DQ21 46 DQ50
17 DQ46 47 DQ9 17 DQ22 47 DQ49
18 DQ47 48 DQ8 18 DQ23 48 DQ48
19 Vcc 49 Vss 19 Vcc 49 Vss
20 /WE0 50 A0 20 A16 50 NC
21 /WE1 51 A1 21 A15 51 NC
22 /WE2 52 A2 22 A14 52 /OE
23 /WE3 53 A3 23 A13 53 NC
24 /WE4 54 A4 24 A12 54 NC
25 Vcc 55 Vss 25 Vcc 55 Vss
26 /WE5 56 A5 26 A11 56 NC
27 /WE6 57 A6 27 A10 57 NC
28 /WE7 58 A7 28 A9 58 NC
29 /CS2 59 /CS1 29 A8 59 NC
30 Vcc 60 Vss 30 Vcc 60 Vss
1 HANBit Electronics Co.,Ltd.
1 page  
HANBit
WRITE CYCLE
PARAMETER
Write Cycle Time
Chip Select to End of Write
Address Set-up Time
Address Valid to End of Write
Write Pulse Width
Write Recovery Time
Write to Output High-Z
Data to Write Time Overlap
Data Hold from Write Time
End of Write to Output Low-Z
HMS12864F8VL
SYMBOL
tWC
tCW
tAS
tAW
tWP
tWR
tWHZ
tDW
tDH
tOW
70
MIN MAX
70
60
0
60
55
0
0 25
30
0
5
100
MIN MAX
100
80
0
80
70
0
0 30
40
0
5
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
TIMING DIAGRAMS
TIMING WAVEFORM OF READ CYCLE(Address Controlled) ( /CE =/ OE = VIL , /WE = VIH)
www.DAadtadSrehseset4U.com
Data out
Previous Data Valid
tRC
tAA
tOH
Data Valid
5 HANBit Electronics Co.,Ltd.
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet HMS12864F8VL.PDF ] | |
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