HB28K032MM3 Renesas Electronics America, HB28K032MM3 Datasheet - Page 83
HB28K032MM3
Manufacturer Part Number
HB28K032MM3
Description
Manufacturer
Renesas Electronics America
Type
MultiMedia Cardr
Datasheet
1.HB28K032MM3.pdf
(91 pages)
Specifications of HB28K032MM3
Density
32MByte
Operating Supply Voltage (typ)
3.3V
Operating Temperature (min)
-25C
Operating Temperature (max)
85C
Package Type
Not Required
Mounting
Surface Mount
Pin Count
7
Operating Temperature Classification
Commercial
Operating Supply Voltage (min)
2.7V
Operating Supply Voltage (max)
3.6V
Programmable
Yes
Lead Free Status / RoHS Status
Compliant
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HB28K032/L064/J128/J256/J512MM3, HB28K032/L064/J128/J256RM3
The access time (t
The synchronous part of the access time is sum of the command frame length and some additional internal
cycles (N
time is T
typical. The resulting memory access time t
Rev.0.02, Sep.15.2004, page 83 of 89
T
which are required to access a byte of the memory field.
T
SAD
AAD
CMD
DAT
: The synchronous access time. This time defines the time of the maximum number of cycles
: The asynchronous access time to read a byte out of the memory field.
SAD
t
SAD
AT
Output
= T
= 0.8 s. The asynchronous access delay of these Renesas MultiMediaCards is T
Clock
= 16 cycles). At 20 MHz one cycle is 50 ns (1/f
Input
AAD
command frame
+ T
AT
) is divided into two parts:
SAD
: Invalid
Valid data
with
Timing Diagram of Data Input and Output
t
t
OH
IH
t
WH
T
T
AT
SAD
SAD
is the sum of both parts:
Access Time
= N
SAD
t
/ f
AT
t
PP
PP
t
T
HL
AAD
PP
), multiplied with N
t
WL
t
ISU
t
OSU
response frame
Valid data
Valid data
t
LH
SAD
data
the resulting frame
V
V
V
V
V
V
AAD
IH
IL
IH
IL
OH
OL
= 300 s
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