M50FLW040B ST Microelectronics, M50FLW040B Datasheet - Page 35

• Manufacturer Part Number: M50FLW040B
• Description: 4 Mbit 3V Supply Firmware Hub / Low Pin Count Flash Memory
• Manufacturer: ST Microelectronics

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Figure 18. A/A Mux Interface Write AC Waveforms
Table 29. A/A Mux Interface Write AC Characteristics
Note: 1. Sampled only, not 100% tested.
t
t
QVVPL
VPHWH
Symbol
t
t
t
t
t
t
t
t
t
t
t
WHWL
WLWH
WHDX
CHWH
WHGL
DVWH
WHRL
AVCH
CHAX
AVCL
CLAX
A0-A10
RC
W
G
RB
V PP
DQ0-DQ7
2. Applicable if V
(1,2)
(1)
Write Enable Low to Write Enable High
Data Valid to Write Enable High
Write Enable High to Data Transition
Row Address Valid to RC Low
RC Low to Row Address Transition
Column Address Valid to RC High
RC High to Column Address Transition
Write Enable High to Write Enable Low
RC High to Write Enable High
V
Write Enable High to Output Enable Low
Write Enable High to RB Low
Output Valid, RB High to V
PP
High to Write Enable High
PP
tWLWH
is seen as a logic input (V
Write erase or
program setup
R1
tAVCL
Parameter
tWHWL
tCLAX
C1
D IN1
PP
valid address and data
Write erase confirm or
tAVCH
Low
PP
R2
tVPHWH
tDVWH
< 3.6V).
tCHAX
tWHRL
C2
D IN2
tCHWH
Automated erase
or program delay
Test Condition
tWHDX
tWHGL
M50FLW040A, M50FLW040B
Register Data
Read Status
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
VALID SRD
tQVVPL
Value
100
100
100
another command
50
50
50
50
50
50
30
5
0
0
Ready to write
AI04185
Unit
35/52
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns