RC28F128M29EWLA NUMONYX, RC28F128M29EWLA Datasheet - Page 20

• Manufacturer Part Number: RC28F128M29EWLA
• Description: IC FLASH 128MBIT 25NS 64BGA
• Manufacturer: NUMONYX
• Series: Axcell™r

Specifications of RC28F128M29EWLA

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 128M (16Mx8, 8Mx16)
• Speed: 60ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Bus Operations
3.5
3.6
3.6.1
3.6.2
3.6.3
20
Reset
During Reset mode the memory is deselected and the outputs are high impedance. The
memory is in Reset mode when RST# is at V
standby level, independently from the Chip Enable, Output Enable or Write Enable inputs.
Auto Select mode
The Auto Select mode allows the system or the programming equipment to read the
electronic signature, verify the protection status of the Extended Memory Block, and
apply/remove Block protection. For example, this mode can be used by programming
equipment to automatically match a device and the application code to be programmed.
At power-up, the device is in Read mode, and can then be put in Auto Select mode by
issuing the Auto Select command (see
The device cannot enter Auto Select mode when a program or erase operation is in
progress (RY/BY# Low). However, Auto Select mode can be entered if the program or erase
operation has been suspended by issuing a Program Suspend or Erase Suspend command
(see
The Auto Select mode is exited by performing a reset. The device is returned to Read mode,
except if the Auto Select mode was entered after an Erase Suspend or a Program Suspend
command. In this case, it returns to the Erase or Program Suspend mode.
Read electronic signature
The memory has two codes, the manufacturer code and the device code used to identify the
memory. These codes can be accessed by performing read operations with control signals
and addresses set as shown in
programmer method (8-bit mode)
- programmer method (16-bit
These codes can also be accessed by issuing an Auto Select command (see
Auto Select
Verify Extended Memory Block protection indicator
The Extended Memory Block is either Numonyx pre-locked or customer-lockable.
The protection status of the Extended Memory Block (pre-locked or customer-lockable) can
be accessed by reading the Extended Memory Block protection indicator. It can be read in
Auto Select mode using either the programmer (see
method (see
The protection status of the Extended Memory Block is then output on bit DQ7 of the Data
input/outputs (see
Verify block protection status
The protection status of a block can be determined by performing a read operation with
control signals and addresses set as shown in
If the block is protected, then 01h (in x 8 mode) is output on Data input/outputs DQ0-DQ7,
otherwise 00h is output.
Section
command).
6.1.6).
Table 9
Table 3
and
Table
and
mode).
Table
Table 5: Read electronic signature - auto select mode -
10).
and
208031-04
4, Bus operations in 8-bit and 16-bit mode).
Table 6: Read electronic signature - auto select mode
Section
IL
. The power consumption is reduced to the
Table 7
6.1.2).
Table 7
and
Table
and
Numonyx
Table
8.
8) or the in-system
®
Axcell™ M29EW
Section 6.1.2: