JS28F512P33BFD Micron Technology Inc, JS28F512P33BFD Datasheet - Page 42

• Manufacturer Part Number: JS28F512P33BFD
• Manufacturer: Micron Technology Inc

Specifications of JS28F512P33BFD

• Cell Type: NOR
• Density: 512Mb
• Access Time (max): 105/17ns
• Interface Type: Parallel/Serial
• Boot Type: Bottom
• Address Bus: 25b
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TSOP
• Program/erase Volt (typ): 8.5 to 9.5V
• Sync/async: Async/Sync
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.3V
• Operating Supply Voltage (max): 3.6V
• Word Size: 16b
• Number Of Words: 32M
• Supply Current: 31mA
• Mounting: Surface Mount
• Pin Count: 56
• Lead Free Status / RoHS Status: Supplier Unconfirmed

Figure 13: OTP Register Map
11.3.1
11.3.2
Datasheet
44
Reading the OTP Registers
The OTP Registers can be read from OTP-RA address. To read the OTP Register, first
issue the Read Device Identifier command at OTP-RA address to place the device in the
Read Device Identifier state (see
page
register to be read.
address offsets of the OTP Registers and Lock Registers. OTP Register and Lock
Register data is read 16 bits at a time.
Programming the OTP Registers
To program an OTP Registers, first issue the Program OTP Register command at the
device base address plus the offset of the desired OTP Register location (See
“OTP Register Map” on page
OTP Register address. See
22). Next, perform a read operation using the address offset corresponding to the
0x109
0x102
0x8A
0x91
0x89
0x88
0x85
0x84
0x81
0x80
15 14 13 12 11 10 9
15 14 13 12 11 10 9
Table 8, “Device Identifier Information” on page 24
128-bit OTP Register 16
(Factory-Programmed)
128-bit OTP Register 1
(User-Programmable)
(User-Programmable)
(User-Programmable)
128-Bit OTP Register 0
Section 6.2, “Device Command Bus Cycles” on page
Lock Register 1
64-bit Segment
64-bit Segment
44). Next, write the desired OTP Register data to the same
Lock Register 0
8
8
7
7
Section 6.2, “Device Command Bus Cycles” on
6
6
5
5
4
4
3
3
2
2
1
1
0
0
Order Number: 208043-05
shows the
Figure 13,
P33-65nm
22.
Apr 2010