S71AL016D SPANSION [SPANSION], S71AL016D Datasheet - Page 35

• Manufacturer Part Number: S71AL016D
• Description: Stacked Multi-Chip Product (MCP) Flash Memory and RAM
• Manufacturer: SPANSION [SPANSION]

August 4, 2004 S29AL016D_00_A1_E
RY/BY#: Ready/Busy#
The RY/BY# is a dedicated, open-drain output pin that indicates whether an Em-
bedded 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
A d v a n c e
Notes:
1. VA = Valid address for programming. During a sector
2. DQ7 should be rechecked even if DQ5 = “1” because
No
erase operation, a valid address is an address within
any sector selected for erasure. During chip erase, a
valid address is any non-protected sector address.
CC
Figure 5. Data# Polling Algorithm
.
Read DQ7–DQ0
Read DQ7–DQ0
DQ7 = Data?
DQ7 = Data?
Addr = VA
Addr = VA
DQ5 = 1?
START
I n f o r m a t i o n
FAIL
No
Yes
No
S29AL016D
Yes
Yes
PASS
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