S29AS008J70BFI030 Spansion Inc., S29AS008J70BFI030 Datasheet - Page 36

• Manufacturer Part Number: S29AS008J70BFI030
• Description: IC 8M FLASH MEMORY
• Manufacturer: Spansion Inc.

Specifications of S29AS008J70BFI030

• Cell Type: NOR
• Density: 8Mb
• Access Time (max): 70ns
• Interface Type: Parallel
• Boot Type: Bottom/Top
• Address Bus: 20/19Bit
• Operating Supply Voltage (typ): 1.8V
• Operating Temp Range: -40C to 85C
• Package Type: FBGA
• Program/erase Volt (typ): 1.65 to 1.95V
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 1.65V
• Operating Supply Voltage (max): 1.95V
• Word Size: 8/16Bit
• Number Of Words: 1M/512K
• Supply Current: 12mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Compliant

12.2
36
RY/BY#: Ready/Busy#
Notes
1. VA = Valid address for programming. During a sector erase operation, a valid address is an address within any sector selected for
2. DQ7 should be rechecked even if DQ5 = 1 because DQ7 may change simultaneously with DQ5.
The RY/BY# is a dedicated, open-drain output pin that indicates whether an Embedded Algorithm is in
progress or complete. The RY/BY# status is valid after the rising edge of the final WE# pulse in the command
sequence. Since RY/BY# is an open-drain output, several RY/BY# pins can be tied together in parallel with a
pull-up resistor to V
If the output is low (Busy), the device is actively erasing or programming. (This includes programming in the
Erase Suspend mode.) If the output is high (Ready), the device is ready to read array data (including during
the Erase Suspend mode), or is in the standby mode.
Table 12.1 on page 39
on page
and erase operations, respectively.
erasure. During chip erase, a valid address is any non-protected sector address.
44,
Figure 18.5 on page 46
CC
.
shows the outputs for RY/BY#. Figures
No
Figure 12.1 Data# Polling Algorithm
and
S29AS008J
Read DQ7–DQ0
Read DQ7–DQ0
Figure 18.6 on page 47
DQ7 = Data?
DQ7 = Data?
Addr = VA
Addr = VA
DQ5 = 1?
START
D a t a
FAIL
No
Yes
No
S h e e t
Yes
Yes
Figure 18.1 on page
shows RY/BY# for read, reset, program,
PASS
S29AS008J_00_08 July 16, 2009
43,
Figure 18.2