M28W640HCB70N6F NUMONYX, M28W640HCB70N6F Datasheet - Page 60
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M28W640HCB70N6F
Manufacturer Part Number
M28W640HCB70N6F
Description
IC FLASH 64MBIT 70NS 48TSOP
Manufacturer
NUMONYX
Datasheet
1.M28W640HCB70N6F.pdf
(72 pages)
Specifications of M28W640HCB70N6F
Format - Memory
FLASH
Memory Type
FLASH - Nor
Memory Size
64M (4M x 16)
Speed
70ns
Interface
Parallel
Voltage - Supply
2.7 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Package / Case
48-TSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
M28W640HCB70N6FCT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Figure 16. Double Word Program flowchart and pseudocode
1. Status check of b1 (protected block), b3 (V
2. If an error is found, the Status Register must be cleared before further Program/Erase operations.
3. Address 1 and address 2 must be consecutive addresses differing only for bit A0.
60/72
after a sequence.
Write Address 1
Write Address 2
Read Status
& Data 1 (3)
& Data 2 (3)
Write 30h
Register
b7 = 1
b3 = 0
b4 = 0
b1 = 0
Start
End
YES
YES
YES
YES
NO
NO
NO
NO
Program to Protected
Block Error (1, 2)
V PP Invalid
Error (1, 2)
Error (1, 2)
Program
PP
invalid) and b4 (program error) can be made after each program operation or
double_word_program_command (addressToProgram1, dataToProgram1,
{
if (status_register.b3==1) /*VPP invalid error */
if (status_register.b4==1) /*program error */
if (status_register.b1==1) /*program to protect block error */
}
error_handler ( ) ;
error_handler ( ) ;
error_handler ( ) ;
do {
writeToFlash (any_address, 0x30) ;
writeToFlash (addressToProgram1, dataToProgram1) ;
writeToFlash (addressToProgram2, dataToProgram2) ;
the Program command*/
} while (status_register.b7== 0) ;
status_register=readFlash (any_address) ;
/* E or G must be toggled*/
/*Memory enters read status state after
addressToProgram2, dataToProgram2)
/*see note (3) */
/*see note (3) */
AI03539b