at49ll040 ATMEL Corporation, at49ll040 Datasheet - Page 23

• Manufacturer Part Number: at49ll040
• Description: 4-megabit Low-pin Count Flash Memory
• Manufacturer: ATMEL Corporation

A/A Mux Read-only Operations
Notes:
A/A Mux Read Timing Diagram
3343A–FLASH–6/03
Symbol
t
t
t
t
t
t
t
t
t
t
t
AVAV
AVCL
CLAX
AVCH
CHAX
CHQV
GLQV
PHAV
GLQX
GHQZ
QXGH
1. See AC Input/Output Reference Waveform for maximum allowable input slew rate.
2. OE may be delayed up to t
3. T
ADDRESSES
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
C
= 0 C to +85 C, 3.3V ± 0.3V V
RST
R/C
I/O
WE
OE
V
V
V
V
V
V
V
V
V
V
V
V
OH
OL
IH
IH
IH
IH
IH
IL
IL
IL
IL
IL
(2)
CHQV
(2)
t
PHAV
t
AVCL
- t
GLQV
CC
(1)(2)(3)
.
Row Address
after the rising edge of R/C without impact on t
Stable
t
CLAX
High-Z
Column Address
t
AVCH
Stable
t
AVAV
t
GLQX
t
CHAX
t
CHQV
Data Valid
t
GLQV
CHQV
.
Next Address
Min
250
Stable
50
50
50
50
1
0
0
t
t
GHQZ
QXGH
Max
150
AT49LL040
50
50
High-Z
Units
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
ns
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