LRS1342 View Datasheet(PDF) - Sharp Electronics
Part Name
Description
Manufacturer
LRS1342 Datasheet PDF : 24 Pages
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Stacked Chip (16M Flash & 2M SRAM)
LRS1341/LRS1342
Write Cycle (F-CE Controlled)1
TA = -25°C to +85°C, VCC = 2.7 V to 3.6 V
PARAMETER
SYMBOL
MIN.
MAX.
UNIT
Write Cycle Time
tAVAV
100
ns
F-RP HIGH Recovery to F-CE going to LOW
tPHEL
10
µs
F-WE Setup to F-CE going LOW
tWLEL
0
ns
F-CE Pulse Width
tELEH
70
ns
F-RP VHH Setup to F-CE going HIGH
tPHEH
100
ns
F-WP VIH Setup to F-CE going HIGH
tSHEH
100
ns
F-VPP Setup to F-CE going HIGH
tVPEH
100
ns
Address Setup to F-CE going HIGH2
tAVEH
50
ns
Data Setup to F-CE going HIGH2
tDVEH
50
ns
Data Hold from F-CE HIGH
tEHDX
0
ns
Address Hold from F-CE HIGH
tEHAX
0
ns
F-WE Hold from F-CE HIGH
tEHWH
0
ns
F-CE Pulse Width HIGH
tEHEL
25
ns
F-CE HIGH to F-RY/BY going LOW
tEHRL
100
ns
Write Recovery before Read
tEHGL
0
ns
F-VPP Hold from Valid SRD, F-RY/BY HIGH-Z
tQVVL
0
ns
F-RP VHH Hold from Valid SRD, F-RY/BY HIGH-Z tQVPH
0
ns
F-WP VIH Hold from Valid SRD, F-RY/BY HIGH
tQVSL
0
ns
NOTES:
1. Read timing characteristics during block erase and word write operations are the same as
during read-only operations. Refer to AC Characteristics for Read Cycle.
2. Refer to the ‘Flash Memory Command Definition’ section for valid AIN and DIN for block erase or word write.
Block Erase and Word Write Performance
TA = -25°C to +85°C, VCC = 2.7 V to 3.6 V
SYMBOL
PARAMETER
VPP = 2.7 V to 3.6 V VPP = 11.4 V to 12.6 V
MIN. TYP.1 MAX. MIN. TYP.1 MAX.
UNIT
NOTES
tWHQV1
tEHQV1
tWHQV2
tEHQV2
tWHRZ1
tEHRZ1
tWHRZ2
tEHRZ2
Word Write Time 32K-word Block
Word Write Time 4K-word Block
Block Write Time 32K-word Block
Block Write Time 4K-word Block
Block Erase Time 32K-word Block
Block Erase Time 4K-word Bock
Word Write Suspend Latency Time to Read
Erase Suspend Latency Time to Read
55
60
1.8
0.3
1.2
0.5
7.5 8.6
19.3 23.6
15
µs
2
30
µs
2
0.6
s
2
0.2
s
2
0.7
s
2
0.5
s
2
6.5 7.5 µs
11.8 15
µs
NOTES:
1. Reference values at TA = +25°C and VCC = 3.0 V, VPP = 3.0 V.
2. Excludes system-level overhead.
Data Sheet
11
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