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PC/100 SDRAM. HM5225645F-B60 Datasheet

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PC/100 SDRAM. HM5225645F-B60 Datasheet
















HM5225645F-B60 SDRAM. Datasheet pdf. Equivalent













Part

HM5225645F-B60

Description

256M LVTTL interface SDRAM 100 MHz 1-Mword x 64-bit x 4-bank/2-Mword x 32-bit x 4-bank PC/100 SDRAM



Feature


HM5225645F-B60 HM5225325F-B60 256M LVTTL interface SDRAM 100 MHz 1-Mword × 64- bit × 4-bank/2-Mword × 32-bit × 4-ba nk PC/100 SDRAM ADE-203-1014C (Z) Rev . 1.0 Oct. 1, 1999 Description The Hita chi HM5225645F is a 256-Mbit SDRAM orga nized as 1048576-word × 64-bit × 4-ba nk. The Hitachi HM5225325F is a 256-Mbi t SDRAM organized as 2097152-word × 32 -bit × 4-bank. All inputs.
Manufacture

Hitachi Semiconductor

Datasheet
Download HM5225645F-B60 Datasheet


Hitachi Semiconductor HM5225645F-B60

HM5225645F-B60; and outputs are referred to the rising edge of the clock input. It is packaged in standard 108 bump BGA. Features • • • • • • • • Singl e chip wide bit solution (× 64/× 32) 3.3 V power supply Clock frequency: 100 MHz (max) LVTTL interface Extremely sm all foot print: 1.27 mm pitch  Packa ge: BGA (BP-108) 4 banks can operate si multaneously and independently Burst rea.


Hitachi Semiconductor HM5225645F-B60

d/write operation and burst read/single write operation capability Programmable burst length: 4/8/full page 2 variatio ns of burst sequence  Sequential (BL = 4/8/full page)  Interleave (BL = 4/8) Programmable CAS latency: 2/3 Byte control by DQMB • • HM5225645F-B 60, HM5225325F-B60 • Refresh cycles: 4096 refresh cycles/64 ms • 2 variati ons of refresh  Auto refresh .


Hitachi Semiconductor HM5225645F-B60

 Self refresh • Full page burst len gth capability  Sequential burst  Burst stop capability Ordering Inform ation Type No. HM5225645FBP-B60* HM5225 325FBP-B60* Frequency 100 MHz 100 MHz C AS latency 3 3 Package 14 mm × 22 mm 1 08 bump BGA (BP-108) Note: 66 MHz oper ation at CAS latency = 2. 2 HM5225645 F-B60, HM5225325F-B60 Pin Arrangement ( HM5225645F) 108-bump BGA 1 .





Part

HM5225645F-B60

Description

256M LVTTL interface SDRAM 100 MHz 1-Mword x 64-bit x 4-bank/2-Mword x 32-bit x 4-bank PC/100 SDRAM



Feature


HM5225645F-B60 HM5225325F-B60 256M LVTTL interface SDRAM 100 MHz 1-Mword × 64- bit × 4-bank/2-Mword × 32-bit × 4-ba nk PC/100 SDRAM ADE-203-1014C (Z) Rev . 1.0 Oct. 1, 1999 Description The Hita chi HM5225645F is a 256-Mbit SDRAM orga nized as 1048576-word × 64-bit × 4-ba nk. The Hitachi HM5225325F is a 256-Mbi t SDRAM organized as 2097152-word × 32 -bit × 4-bank. All inputs.
Manufacture

Hitachi Semiconductor

Datasheet
Download HM5225645F-B60 Datasheet




 HM5225645F-B60
HM5225645F-B60
HM5225325F-B60
256M LVTTL interface SDRAM
100 MHz
1-Mword × 64-bit × 4-bank/2-Mword × 32-bit × 4-bank
PC/100 SDRAM
ADE-203-1014C (Z)
Rev. 1.0
Oct. 1, 1999
Description
The Hitachi HM5225645F is a 256-Mbit SDRAM organized as 1048576-word × 64-bit × 4-bank. The Hitachi
HM5225325F is a 256-Mbit SDRAM organized as 2097152-word × 32-bit × 4-bank. All inputs and outputs
are referred to the rising edge of the clock input. It is packaged in standard 108 bump BGA.
Features
Single chip wide bit solution (× 64/× 32)
3.3 V power supply
Clock frequency: 100 MHz (max)
LVTTL interface
Extremely small foot print: 1.27 mm pitch
Package: BGA (BP-108)
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




 HM5225645F-B60
HM5225645F-B60, HM5225325F-B60
Refresh cycles: 4096 refresh cycles/64 ms
2 variations of refresh
Auto refresh
Self refresh
Full page burst length capability
Sequential burst
Burst stop capability
Ordering Information
Type No.
Frequency
CAS latency
HM5225645FBP-B60*
100 MHz
3
HM5225325FBP-B60*
100 MHz
3
Note: 66 MHz operation at CAS latency = 2.
Package
14 mm × 22 mm 108 bump BGA (BP-108)
2




 HM5225645F-B60
Pin Arrangement (HM5225645F)
HM5225645F-B60, HM5225325F-B60
108-bump BGA
1 2 34 5 67 8 9
A DQ63 DQ62 DQ49 DQ48 VSS DQ47 DQ46 DQ33 DQ32
B DQ61 DQ60 DQ51 DQ50 VCC DQ45 DQ44 DQ35 DQ34
C DQ59 DQ58 DQ53 DQ52 VCC DQ43 DQ42 DQ37 DQ36
D DQ57 DQ56 DQ55 DQ54 VSS DQ41 DQ40 DQ39 DQ38
E
DQ
MB7
DQ
MB6
DQ DQ
MB5 MB4
F CKE VCC
RAS WE
G A12 VCC
A10 A13
H A7 A5
VCC A1
J A4 VSS
A2 A3
K A8 A6
VSS A0
L A11 VSS
A9 CS
M Open CLK
VCC CAS
N
DQ
MB0
DQ
MB1
DQ DQ
MB2 MB3
P DQ6 DQ7 DQ8 DQ9 VSS DQ22 DQ23 DQ24 DQ25
R DQ4 DQ5 DQ10 DQ11 VCC DQ20 DQ21 DQ26 DQ27
T DQ2 DQ3 DQ12 DQ13 VCC DQ18 DQ19 DQ28 DQ29
U DQ0 DQ1 DQ14 DQ15 VSS DQ16 DQ17 DQ30 DQ31
(Top view)
3




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