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| AT49LH002 Datasheet, PDF (32/36 Pages) ATMEL Corporation – 2-megabit Firmware Hub and Low-Pin Count Flash Memory | |||
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A/A Mux Interface Write Operations(1)
Symbol
Parameter
tPHWL
RST High Recovery to WE Low
tWLWH
Write Pulse Width Low
tDVWH
Data Setup to WE High
tWHDX
Data Hold from WE High
tAVCL
Row Address Setup to R/C Low
tCLAX
Row Address Hold from R/C Low
tAVCH
Column Address Setup to R/C High
tCHAX
Column Address Hold from R/C High
tWHWL
Write Pulse Width High
tCHWH
R/C High Setup to WE High
tWHGL
Write Recovery before Read
tWHSV
Write Recovery before a Valid SRD (Status Register Data) Read
tWHRL
WE High to RDY/BSY Going Low
Note: 1. TC = 0° C to +85° C, VCC = 3.0V to 3.6V.
A/A Mux Write Timing Diagram
ADDRESSES VIH
VIL
R/C VIH
VIL
WE VIH
VIL
OE VIH
VIL
I/O VOH
VOL
A
tAVCL
B
C
R1
C1
R2
C2
tCLAX
tAVCH
D
tCHAX
tPHWL
tWLWH
tWHWL
tCHWH
tWHGL
tDVWH
tWHDX
DIN
DIN
tWHSV
tWHRL
RDY/BSY VIH
VIL
Min
1
100
50
5
50
50
50
50
100
50
0
E
Valid
SRD
Max
150
150
F
RST VIH
VIL
NOTES
A = VCC power-up and standby
B = Write sector erase or program setup
C = Write sector erase confirm or valid address and data
D = Automated erase or program delay
E = Read status register data
F = Ready to write another command
Units
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
32 AT49LH002
3377BâFLASHâ9/03
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