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參數(shù)資料
| 型號(hào)： | HB28J256MM3 |
| 廠商： | Renesas Technology Corp. |
| 英文描述： | MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte |
| 中文描述： | 多媒體32 MByte/64 MByte/128 MByte/256 MByte/512字節(jié) |
| 文件頁數(shù)： | 84/91頁 |
| 文件大?。?/td> | 526K |
| 代理商： | HB28J256MM3 |
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HB28K032/L064/J128/J256/J512MM3, HB28K032/L064/J128/J256RM3
Rev.0.02, Sep.15.2004, page 84 of 89
Access Time
Parameter
Symbol
Typ
Max
Unit
Remark
Synchronous access delay cycles
N
SAD
T
SAD
T
AAD
t
AT
300
16
cycles
μ
s
μ
s
μ
s
Synchronous access delay
0.8
*
at 20 MHz clock frequency
Asynchronous access delay
Memory access time
Note: 1. Refer to Chapter
“
Read, Write and Erase Time-out Conditions
”
.
300.8
1
at 20 MHz clock frequency
In the CSD are two fields to code the asynchronous and the synchronous access delay time:
TAAC, asynchronous access delay
NSAC, maximum number of cycles for receiving and interpreting of a command frame
The value for the CSD field NSAC is calculated from N
SAD
(maximum: 16 cycles) by division with 100
and rounding up to the next integer:
NSAC = [N
SAD
/100] = [16/100]
NSAC = 0x01
The value for the CSD field TAAC is 1 ms:
TAAC = [T
AAD
] = 1 ms
TAAC = 0x0E
For more details on NSAC and TAAC CSD-entries refer to Chapter
“
Card Specific Data (CSD)
”
.
References
[1] The MultiMediaCard, System Specification 3.3, MultiMediaCard Association
Number Representations
Decimal numbers: 1234, no special characters
Hexadecimal numbers: 0xAB, leading 0x, each digit represents 4 bits.
Binary numbers (single bit):
‘
0
’
.
Binary numbers (unsigned bit vector):
“
100100
”
.
1K is equal to 1024.
1M is equal to 1K * 1K, except the card capacity. In the card capacity, 1M is equal to 10
and
“
Card Specific Data
”
).
1G is equal to 1M * 1K
6
(
“
Features
”
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HB28J256RM3 | MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte |
| HB28L064RM3 | MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte |
| HB28K032MM3 | MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte |
| HB28K032RM3 | MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte |
| HB28L064MM3 | MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HB2A102K-S265B | 制造商:Hitano Enterprise Corp 功能描述:Bulk |
| HB2A102K-S565B | 制造商:Hitano Enterprise Corp 功能描述:Bulk |
| HB2A103K-S565B | 制造商:Hitano Enterprise Corp 功能描述: |
| HB2A122K-S265B | 制造商:Hitano Enterprise Corp 功能描述: |
| HB2A122K-S565B | 制造商:Hitano Enterprise Corp 功能描述:Bulk |
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