S71PL064JB0BFW0B0 Spansion Inc., S71PL064JB0BFW0B0 Datasheet - Page 76

• Manufacturer Part Number: S71PL064JB0BFW0B0
• Manufacturer: Spansion Inc.

Specifications of S71PL064JB0BFW0B0

• Operating Supply Voltage (max): 3.1V
• Operating Temperature (max): 85C
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

77
bank returns to the read mode. If not all selected sectors are protected, the Em-
bedded Erase algorithm erases the unprotected sectors, and ignores the selected
sectors that are protected. However, if the system reads DQ7 at an address within
a protected sector, the status may not be valid.
When the system detects DQ7 has changed from the complement to true data,
it can read valid data at DQ15–DQ0 on the following read cycles. Just prior to the
completion of an Embedded Program or Erase operation, DQ7 may change asyn-
chronously with DQ15–DQ0 while Output Enable (OE#) is asserted low. That is,
the device may change from providing status information to valid data on DQ7.
Depending on when the system samples the DQ7 output, it may read the status
or valid data. Even if the device has completed the program or erase operation
and DQ7 has valid data, the data outputs on DQ15–DQ0 may be still invalid. Valid
data on DQ15–DQ0 will appear on successive read cycles.
Table
algorithm. 18 in the AC Characteristic section shows the Data# Polling timing
diagram.
Notes:
1. VA = Valid address for programming. During a sector erase operation, a valid address is
2. DQ7 should be rechecked even if DQ5 = “1” because DQ7 may change simultaneously
any sector address within the sector being erased. During chip erase, a valid address is
any non-protected sector address.
with DQ5.
19
shows the outputs for Data# Polling on DQ7. 6 shows the Data# Polling
S29PL127J/S29PL064J/S29PL032J for MCP
Figure 6. Data# Polling Algorithm
No
Read DQ7–DQ0
Read DQ7–DQ0
DQ7 = Data?
DQ7 = Data?
Addr = VA
Addr = VA
DQ5 = 1?
START
FAIL
No
Yes
No
P r e l i m i n a r y
Yes
Yes
PASS
S29PL127_064_032J_00_A1 May 21, 2004