AT49LW040-33JC Atmel, AT49LW040-33JC Datasheet - Page 22

• Manufacturer Part Number: AT49LW040-33JC
• Manufacturer: Atmel

Specifications of AT49LW040-33JC

• Cell Type: NOR
• Density: 4Mb
• Access Time (max): 30ns
• Interface Type: Parallel/Serial
• Boot Type: Top
• Address Bus: 4/11Bit
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: 0C to 85C
• Package Type: PLCC
• Program/erase Volt (typ): 3 to 3.6V
• Sync/async: Async/Sync
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8b
• Number Of Words: 512K
• Supply Current: 67mA
• Mounting: Surface Mount
• Pin Count: 32
• Lead Free Status / Rohs Status: Not Compliant

Interface Measurement Condition Parameters
Note:
Reset Operations
Note:
AC Waveform for Reset Operation
Sector Programming Times
Notes:
22
Symbol
V
V
V
V
Input Signal Edge Rate
Symbol
t
Parameter
Byte Program Time
Sector Program Time
Sector Erase Time
PLPH
TH
TL
TEST
MAX
(1)
(1)
(1)
(1)
1. The input test environment is done with 0.1 V
1. A reset latency of 20 µs will occur if a reset procedure is performed during a programming or erase operation.
1. Typical values measured at T
2. Excludes system-level overhead.
AT49LW040
overdrive than this. V
testing may use different voltage values, but must correlate results back to these parameters.
(2)
Parameter
RST or INIT Pulse Low Time (If RST or INIT is tied to V
specification is not applicable)
(2)
(2)
RST
MAX
V
V
IH
IL
specifies the maximum peak-to-peak waveform allowed for measuring the input timing. Production
A
= +25 C and nominal voltages.
t
PLPH
CC
of overdrive over V
Typ
30.0
2.0
0.8
(1)
CC
, this
3.3V V
IH
and V
PP
IL
0.6 V
0.2 V
0.4 V
0.4 V
Value
. Timing parameters must be met with no more
CC
CC
CC
CC
Max
20.0
300
1.0
Min
100
1 V/ns
Max
Units
3342A–FLASH–6/03
V
V
V
V
Unit
sec
sec
µs
Unit
ns