HY29LV400 Hynix Semiconductor, HY29LV400 Datasheet - Page 31

• Manufacturer Part Number: HY29LV400
• Description: 4 Mbit (512K x 8/256K x 16) Low Voltage Flash Memory
• Manufacturer: Hynix Semiconductor

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AC CHARACTERISTICS
Notes:
1. VA = Valid Address for reading Data# Polling status data (see Write Operation Status section).
2. Illustration shows first status cycle after command sequence, last status read cycle and array data read cycle.
Notes:
1. VA = Valid Address for reading Toggle Bits (DQ[2], DQ[6]) status data (see Write Operation Status section).
2. Illustration shows first two status read cycles after command sequence, last status read cycle and array data read cycle.
Rev. 1.0/Nov. 01
Addresses
Addresses
DQ[6], [2]
RY/BY#
RY/BY#
DQ[6:0]
DQ[7]
W E #
W E #
O E #
C E #
O E #
C E #
t
t
t
Figure 22. Toggle Polling Timings (During Automatic Algorithms)
B U S Y
C H
B U S Y
Figure 21. Data# Polling Timings (During Automatic Algorithms)
t
O E H
t
t
O E H
C H
t
t
C E
O E
t
C E
t
O E
t
A C C
V A
V A
t
R C
t
R C
t
A C C
Valid Status
C o m p l e m e n t
Status Data
(first read)
t
t
O H
O H
t
t
D F
D F
V A
(second read)
Valid Status
V A
C o m p l e m e n t
Status Data
True
Data
(stops toggling)
Valid Status
V A
V A
Valid Data
Valid Data
HY29LV400
V A
Valid Data
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