M29W640GB NUMONYX [Numonyx B.V], M29W640GB Datasheet - Page 38

• Manufacturer Part Number: M29W640GB
• Description: 64 Mbit (8Mb x8 or 4Mb x16, Page) 3V supply Flash memory
• Manufacturer: NUMONYX [Numonyx B.V]

Command Interface
Figure 7.
1. Only the third and fourth cycles of the Program command are represented. The Program command is followed by the check
2. PA is address of the memory location to be programmed. PD is the data to be programmed.
3. DQ7 is the complement of the data bit being programmed to DQ7 (see
4. Addresses differ in x8 mode.
5. See
38/90
of Status register Data Polling bit.
Table 19: Write ac characteristics
Chip Enable controlled Program waveforms (8-bit mode)
DQ0-DQ7/
DQ8-DQ15
A0-A20/
A–1
W
G
E
tAVAV
tWLEL
tGHEL
and
tDVEH
tELEH
Table 18: Read ac characteristics
3rd cycle
tAVEL
555h
AOh
M29W640GH, M29W640GL, M29W640GT, M29W640GB
4th cycle
tEHWH
tEHDX
PA
tEHEL1
PD
tELAX
tWHWH1
for details on the timings.
Section 5.1: Data Polling Bit
Data Polling
PA
DQ7 D OUT
(DQ7)).
AI12780