AT45CS1282-TC Atmel, AT45CS1282-TC Datasheet - Page 8

• Manufacturer Part Number: AT45CS1282-TC
• Description: IC FLASH 128MBIT 50MHZ 40TSOP
• Manufacturer: Atmel

Specifications of AT45CS1282-TC

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 128M (16,384 pages x 1056 bytes)
• Speed: 50MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-TSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Manufacturer and Device ID Read
This instruction conforms to the JEDEC standard and allows the user to read the Manufacturer ID, Device ID, and Extended
Device Information. This mode is only offered via the serial interface with clock frequencies up to 25 MHz. A 1-byte opcode,
9FH, must be clocked into the device while the CS pin is low. After the opcode is clocked in, the Manufacturer ID, 2 bytes of
Device ID and Extended Device Information will be clocked out on the SO pin. The fourth byte of the sequence output is the
Extended Device Information String Length byte. This byte is used to signify how many bytes of Extended Device Informa-
tion will be output.
Manufacturer and Device ID Information
Byte 1 – Manufacturer ID
Byte 2 – Device ID (Part 1)
Byte 3 – Device ID (Part 2)
Byte 4 – Extended Device Information String Length
Note:
8
represents 8 bits
Value
Value
Value
Value
Each transition
Hex
Hex
Hex
Hex
1FH
29H
20H
00H
Based on JEDEC publication 106 (JEP106), Manufacturer ID data can be comprised of any number of bytes. Some manufacturers may have
Manufacturer ID codes that are two, three or even four bytes long with the first byte(s) in the sequence being 7FH. A system should detect code
7FH as a “Continuation Code” and continue to read Manufacturer ID bytes. The first non-7FH byte would signify the last byte of Manufacturer ID
data. For Atmel (and some other manufacturers), the Manufacturer ID data is comprised of only one byte.
Bit 7
Bit 7
Bit 7
Bit 7
AT45CS1282 [Preliminary]
0
0
0
0
Family Code
CS
SO
MLC Code
SI
Bit 6
Bit 6
Bit 6
Bit 6
0
0
0
0
Bit 5
Bit 5
Bit 5
Bit 5
0
1
1
0
JEDEC Assigned Code
Opcode
9FH
Bit 4
Bit 4
Bit 4
Bit 4
Byte Count
1
0
0
0
Manufacturer ID
Bit 3
Bit 3
Bit 3
Bit 3
Product Version Code
Byte n
1
1
0
0
1FH
Density Code
Bit 2
Bit 2
Bit 2
Bit 2
1
0
0
0
Device ID
Byte 1
29H
Bit 1
Bit 1
Bit 1
Bit 1
1
0
0
0
Bit 0
Bit 0
Bit 0
Bit 0
Device ID
1
1
0
0
Byte 2
20H
String Length
Information
Extended
Device
00H
Manufacturer ID
Family Code
Density Code
MLC Code
Product Version
Byte Count
Information
Information String Length
Extended
Device
if the Extended Device
Byte x
would only be output
value was something
Data
This information
other than 00H.
Information
Byte x + 1
Extended
Device
Data
1FH = Atmel
01001 = 128-Mbit
00000 = Initial Version
00H = 0 Bytes of Information
001 = DataFlash
001 = 2-Bit/Cell Technology
3447A–DFLSH–2/04