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PDF HM5212325FBPC-B60 Data sheet ( Hoja de datos )
| Número de pieza | HM5212325FBPC-B60 | |
| Descripción | 128M LVTTL interface SDRAM 100 MHz 1-Mword x 32-bit x 4-bank PC/100 SDRAM | |
| Fabricantes | Hitachi Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HM5212325FBPC-B60 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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HM5212325FBPC-B60
128M LVTTL interface SDRAM
100 MHz
1-Mword × 32-bit × 4-bank
PC/100 SDRAM
ADE-203-1122C (Z)
Rev. 1.0
May. 12 , 2000
Description
The Hitachi HM5212325FBPC is a 128-Mbit SDRAM organized as 1048576-word × 32-bit × 4-bank. All
inputs and outputs are referred to the rising edge of the clock input. It is packaged in standard 90-bump fine
pitch BGA.
Features
• Single chip wide bit solution (× 32)
• 3.3 V power supply
• Clock frequency: 100 MHz (max)
• LVTTL interface
• Extremely small foot print: 0.8 mm pitch
Package: FBGA (BP-90)
• 4 banks can operate simultaneously and independently
• Burst read/write operation and burst read/single write operation capability
• Programmable burst length: 4/8/full page
• 2 variations of burst sequence
Sequential (BL = 4/8/full page)
Interleave (BL = 4/8)
• Programmable CAS latency: 2/3
• Byte control by DQMB
• Refresh cycles: 4096 refresh cycles/64 ms
1 page  
Block Diagram
A0 to A13
CS
RAS
CAS
WE
CLK
CKE
14
HM5212325FBPC-B60
64-Mbit SDRAM
4M × 16
64-Mbit SDRAM
4M × 16
4
DQMB 0 to
DQMB 3 32
DQ 0 to DQ 31
2 16
Power-up Sequence and Initialization Sequence
2 16
Power up sequence
100 µs
VCC 0 V
CKE, DQMB Low
CLK Low
CS, DQ Low
Power stabilize
Initialization sequence
200 µs
5
5 Page 
Package Dimensions
HM5212325FBPC (BP-90)
Index
10.0
0.20 C A
HM5212325FBPC-B60
Unit: mm
A
0.8
A
B
9.8 ± 0.10
2.4
5.6
90 × φ0.45 ± 0.05
φ0.08 M C A B
Details of the part A
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
BP-90
—
—
0.28 g
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet HM5212325FBPC-B60.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| HM5212325FBPC-B60 | 128M LVTTL interface SDRAM 100 MHz 1-Mword x 32-bit x 4-bank PC/100 SDRAM | Hitachi Semiconductor |
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