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PDF HB56A132 Data sheet ( Hoja de datos )
| Número de pieza | HB56A132 | |
| Descripción | High Density Dynamic RAM Module | |
| Fabricantes | Hitachi Semiconductor | |
| Logotipo |  |
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HB56A132 Series
1,048,576-word × 32-Bit High Density Dynamic RAM Module
ADE-203-
Rev. 0.0
Dec. 1, 1995
Description
The HB56A132 is a 1 M × 32 dynamic RAM module, mounted 8 pieces of (4-Mbit) DRAM
(HM514400CS/CLS) sealed in SOJ package. An outline of the HB56A132 is 72-pin single in-line package.
Therefore, the HB56A132 makes high density mounting possible without surface mount technology. The
HB56A132 provides common data inputs and outputs. Decoupling capacitors are mounted beneath each SOJ.
Features
• 72-pin single in-line package
— Lead pitch: 1.27 mm
• Single 5 V (± 5%) supply
• High speed
— Access time: 60 ns/70 ns/80 ns (max)
• Low power dissipation
— Active mode: 4.62W/4.20W/3.78W (max)
— Standby mode: 84 mW (max)
4.2 mW (max) (L-version)
• Fast page mode capability
• 1,024 refresh cycle: 16 ms
128 ms (L-version)
• 2 variations of refresh
— RAS only refresh
— CAS before RAS refresh
• TTL compatible
1 page  
Block Diagram
RAS0
CAS0
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
CAS1
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
RAS2
CAS2
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
CAS3
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
Note : D0 – D7 : HM514400
A0 – A9
WE
VCC
VSS
HB56A132 Series
I/O CAS RAS
I/O
I/O D0
I/O
OE
I/O CAS RAS
I/O
I/O D2
I/O
OE
I/O CAS RAS
I/O
I/O D4
I/O
OE
I/O CAS RAS
I/O
I/O D6
I/O
OE
I/O CAS RAS
I/O
I/O D1
I/O
OE
I/O CAS RAS
I/O
I/O D3
I/O
OE
I/O CAS RAS
I/O
I/O D5
I/O
OE
I/O CAS RAS
I/O
I/O D7
I/O
OE
D0 – D7
D0 – D7
D0 – D7
C0 – C7
D0 – D7
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet HB56A132.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| HB56A132 | High Density Dynamic RAM Module | Hitachi Semiconductor |
| HB56A132BU | High Density Dynamic RAM Module | Hitachi Semiconductor |
| HB56A132BW | High Density Dynamic RAM Module | Hitachi Semiconductor |
| HB56A132SBW | High Density Dynamic RAM Module | Hitachi Semiconductor |
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