AT45DB642D-TU Atmel, AT45DB642D-TU Datasheet - Page 7
![IC FLASH 64MBIT 66MHZ 28TSOP](/photos/7/21/72191/313-28-tsop_sml.jpg)
AT45DB642D-TU
Manufacturer Part Number
AT45DB642D-TU
Description
IC FLASH 64MBIT 66MHZ 28TSOP
Manufacturer
Atmel
Datasheet
1.AT45DB642D-CU.pdf
(58 pages)
Specifications of AT45DB642D-TU
Format - Memory
FLASH
Memory Type
DataFLASH
Memory Size
64M (8192 pages x 1056 bytes)
Speed
66MHz
Interface
Parallel/Serial
Voltage - Supply
2.7 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Package / Case
28-TSOP
Density
64Mb
Access Time (max)
6ns
Interface Type
Parallel/Serial-SPI
Boot Type
Not Required
Address Bus
1/8Bit
Operating Supply Voltage (typ)
3.3V
Operating Temp Range
-40C to 85C
Package Type
TSOP-I
Program/erase Volt (typ)
2.7 to 3.6V
Sync/async
Synchronous
Operating Temperature Classification
Industrial
Operating Supply Voltage (min)
2.7V
Operating Supply Voltage (max)
3.6V
Word Size
8b
Number Of Words
8M
Supply Current
15mA
Mounting
Surface Mount
Pin Count
28
Data Bus Width
8 bit
Architecture
Sectored
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2.7 V
Maximum Operating Current
15 mA
Mounting Style
SMD/SMT
Organization
256 KB x 32
Memory Configuration
8192 Pages X 1056 Bytes
Clock Frequency
66MHz
Supply Voltage Range
2.7V To 3.6V
Memory Case Style
TSOP
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT45DB642D-TU
Manufacturer:
MICRON
Quantity:
101
Company:
Part Number:
AT45DB642D-TU
Manufacturer:
ATMEL
Quantity:
9 396
Company:
Part Number:
AT45DB642D-TU
Manufacturer:
AT
Quantity:
5
Part Number:
AT45DB642D-TU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
6.2
6.3
3542K–DFLASH–04/09
Continuous Array Read (High Frequency Mode: 0BH): Up to 66 MHz
Continuous Array Read (Low Frequency Mode: 03H): Up to 33 MHz
The CS pin must remain low during the loading of the opcode, the address bytes, the don’t care
bytes, and the reading of data. When the end of a page in main memory is reached during a
Continuous Array Read, the device will continue reading at the beginning of the next page with
no delays incurred during the page boundary crossover (the crossover from the end of one page
to the beginning of the next page). When the last bit (or byte if using the 8-bit interface mode) in
the main memory array has been read, the device will continue reading back at the beginning of
the first page of memory. As with crossing over page boundaries, no delays will be incurred
when wrapping around from the end of the array to the beginning of the array.
A low-to-high transition on the CS pin will terminate the read operation and tri-state the output
pins (SO or I/O7-I/O0). The maximum SCK/CLK frequency allowable for the Continuous Array
Read is defined by the f
fers and leaves the contents of the buffers unchanged.
This command can be used with the serial interface to read the main memory array sequentially
in high speed mode for any clock frequency up to the maximum specified by f
continuous read array with the page size set to 1056 bytes, the CS must first be asserted then
an opcode 0BH must be clocked into the device followed by three address bytes and a dummy
byte. The first 13 bits (PA12 - PA0) of the 24-bit address sequence specify which page of the
main memory array to read, and the last 11 bits (BA10 - BA0) of the 24-bit address sequence
specify the starting byte address within the page. To perform a continuous read with the page
size set to 1024 bytes, the opcode, 0BH, must be clocked into the device followed by three
address bytes (A22 - A0) and a dummy byte. Following the dummy byte, additional clock pulses
on the SCK pin will result in data being output on the SO (serial output) pin.
The CS pin must remain low during the loading of the opcode, the address bytes, and the read-
ing of data. When the end of a page in the main memory is reached during a Continuous Array
Read, the device will continue reading at the beginning of the next page with no delays incurred
during the page boundary crossover (the crossover from the end of one page to the beginning of
the next page). When the last bit in the main memory array has been read, the device will con-
tinue reading back at the beginning of the first page of memory. As with crossing over page
boundaries, no delays will be incurred when wrapping around from the end of the array to the
beginning of the array. A low-to-high transition on the CS pin will terminate the read operation
and tri-state the output pin (SO). The maximum SCK frequency allowable for the Continuous
Array Read is defined by the f
data buffers and leaves the contents of the buffers unchanged.
This command can be used with the serial interface to read the main memory array sequentially
without a dummy byte up to maximum frequencies specified by f
read array with the page size set to 1056 bytes, the CS must first be asserted then an opcode,
03H, must be clocked into the device followed by three address bytes (which comprise the 24-bit
page and byte address sequence). The first 13 bits (PA12 - PA0) of the 24-bit address sequence
specify which page of the main memory array to read, and the last 11 bits (BA10 - BA0) of the
24-bit address sequence specify the starting byte address within the page. To perform a contin-
uous read with the page size set to 1024 bytes, the opcode, 03H, must be clocked into the
device followed by three address bytes (A22 - A0). Following the address bytes, additional clock
pulses on the SCK pin will result in data being output on the SO (serial output) pin.
CAR1
specification. The Continuous Array Read bypasses both data buf-
CAR1
specification. The Continuous Array Read bypasses both
CAR2
. To perform a continuous
CAR1
. To perform a
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