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The M29DW324D is a 32 Mbit (4Mb x8 or 2Mbx16) non-volatile memory that can be read, erased and reprogrammed. These operations can be performed using a single low voltage (2.7 to 3.6V) supply. On power-up the memory defaults to its Read mode where it can be read in the same way as a ROM or EPROM.
The device features an asymmetrical block architecture. The M29DW324D has an array of 8 parameter and 63 main blocks and is divided into two Banks, A and B, providing Dual Bank operations. While programming or erasing in Bank A, read operations are possible in Bank B and vice versa. Only one bank at a time is allowed to be in program or erase mode. The bank architecture is summarized in Table 2. M29DW324DT locates the Parameter Blocks at the top of the memory address space while the M29DW324DB locates the Parameter Blocks starting from the bottom.
M29DW324DT Maximum Ratings
Symbol
Parameter
Min
Max
Unit
TBIAS
Temperature Under Bias
50
125
°C
TSTG
Storage Temperature
65
150
°C
VIO
Input or Output Voltage (1,2)
0.6
VCC +0.6
V
VCC
Supply Voltage
0.6
4
V
VID
Identification Voltage
0.6
13.5
V
VPP(3)
Program Voltage
0.6
13.5
V
M29DW324DT Features
SUPPLY VOLTAGE VCC = 2.7V to 3.6V for Program, Erase and Read VPP =12V for Fast Program (optional) ACCESS TIME: 70, 90ns PROGRAMMING TIME 10µs per Byte/Word typical Double Word/ Quadruple Byte Program MEMORY BLOCKS Dual Bank Memory Array: 16Mbit+16Mbit Parameter Blocks (Top or Bottom Location) DUAL OPERATIONS Read in one bank while Program or Erase in other ERASE SUSPEND and RESUME MODES Read and Program another Block during Erase Suspend UNLOCK BYPASS PROGRAM COMMAND Faster Production/Batch Programming VPP/WP PIN for FAST PROGRAM and WRITE PROTECT TEMPORARY BLOCK UNPROTECTION MODE COMMON FLASH INTERFACE 64 bit Security Code EXTENDED MEMORY BLOCK Extra block used as security block or to store additional information LOW POWER CONSUMPTION Standby and Automatic Standby 100,000 PROGRAM/ERASE CYCLES per BLOCK ELECTRONIC SIGNATURE Manufacturer Code: 0020h Top Device Code M29DW324DT: 225Ch Bottom Device Code M29DW324DB: 225Dh