M58LT256JST8ZA6E NUMONYX, M58LT256JST8ZA6E Datasheet - Page 90

• Manufacturer Part Number: M58LT256JST8ZA6E
• Description: IC FLASH 256MBIT 85NS 64TBGA
• Manufacturer: NUMONYX

Specifications of M58LT256JST8ZA6E

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 256M (16Mx16)
• Speed: 85ns
• Interface: Parallel
• Voltage - Supply: 1.7 V ~ 2 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Flowcharts and pseudocodes
Figure 20. Blank check flowchart and pseudocode
1. Any address within the bank can equally be used.
2. If an error is found, the Status Register must be cleared before further Program/Erase operations.
90/108
Status Register (1)
Address & BCh
Address & CBh
Write Block
Write Block
SR7 = 1
SR4 = 1
SR5 = 1
SR5 = 0
Read
Start
End
YES
NO
YES
NO
Blank Check Error (2)
Command Sequence
Error (2)
blank_check_command (blockToCheck) {
}
writeToFlash (blockToCheck, 0xBC);
writeToFlash (blockToCheck, 0xCB);
/* Memory enters read status state after
the Blank Check Command */
do {
if (status_register.SR4==1) && (status_register.SR5==1)
/* command sequence error */
if (status_register.SR5==1)
/* Blank Check error */
status_register = readFlash (blockToCheck);
/* E or G must be toggled */
} while (status_register.SR7==0);
error_handler () ;
error_handler () ;
M58LT256JST, M58LT256JSB
/* see note (1) */
ai10520c