S29AL032D datasheet(42/69 Pages) SPANSION

tên linh kiện	S29AL032D

Giải thích chi tiết về linh kiện	32 Megabit CMOS 3.0 Volt-only Flash Memory

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S29AL032D

S29AL032D_00_A3 June 13, 2005

Advan ce

In form ati o n

Figure 18, on page 44 shows the outputs for Data# Polling on DQ7. Figure 7, on page 43 shows

the Data# Polling algorithm.

Figure 6. Data# Polling Algorithm

RY/BY#: Ready/Busy#

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 VCC.

DQ7 = Data?

Yes

DQ5 = 1?

Yes

FAIL

PASS

Read DQ7–DQ0

Addr = VA

Read DQ7–DQ0

Addr = VA

DQ7 = Data?

START

Notes:

1. VA = Valid address for programming. During a sector

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.

2. DQ7 should be rechecked even if DQ5 = 1 because

DQ7 may change simultaneously with DQ5.

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