at49lw040 ATMEL Corporation, at49lw040 Datasheet - Page 24

• Manufacturer Part Number: at49lw040
• Description: At49lw040 4-megabit Firmware Hub Flash Memory
• Manufacturer: ATMEL Corporation

A/A Mux Read-only Operations
Note:
A/A Mux Read Timing Diagram
24
Symbol
t
t
t
t
t
t
t
t
t
t
t
AVAV
AVCL
CLAX
AVCH
CHAX
CHQV
GLQV
PHAV
GLQX
GHQZ
QXGH
ADDRESSES
1. See AC Input/Output Reference Waveform for maximum allowable input slew rate.
2. OE may be delayed up to t
3. T
AT49LW040
C
RST
Parameter
Read Cycle Time
Row Address Setup to R/C Low
Row Address Hold from R/C Low
Column Address Setup to R/C High
Column Address Hold from R/C High
R/C High to Output Delay
OE Low to Output Delay
RST High to Row Address Setup
OE Low to Output in Low-Z
OE High to Output in High-Z
Output Hold from OE High
R/C
I/O
WE
OE
= 0 C to +85 C, 3.3V + 0.3V V
V
V
V
V
V
V
V
V
V
V
V
V
OH
OL
IH
IH
IH
IH
IH
IL
IL
IL
IL
IL
t
PHAV
(2)
CHQV
t
(2)
AVCL
- t
GLQV
CC
Row Address
(1)(2)
.
Stable
after the rising edge of R/C without impact on t
t
CLAX
High-Z
Column Address
t
AVCH
Stable
t
AVAV
t
GLQX
t
CHAX
t
CHQV
Data Valid
t
CHQV
GLQV
.
Min
250
Next Address
50
50
50
50
1
0
0
Stable
t
t
QXGH
GHQZ
Max
150
50
50
3342A–FLASH–6/03
High-Z
Units
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
ns