|
|
NOR Flash Ser NOR Flash Memory 20
- S70FL01GSAGMFM010
- Infineon Technologies
-
1:
$23.89
-
1,680In Stock
|
Mouser Part No
727S70FL01GSAGMFM010
|
Infineon Technologies
|
NOR Flash Ser NOR Flash Memory 20
|
|
1,680In Stock
|
|
|
$23.89
|
|
|
$22.13
|
|
|
$21.42
|
|
|
$20.90
|
|
|
View
|
|
|
$20.39
|
|
|
$19.71
|
|
|
$18.82
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
SMD/SMT
|
SOIC-16
|
S70FL01GS
|
1 Gbit
|
2.7 V
|
3.6 V
|
90 mA
|
SPI
|
133 MHz
|
128 M x 8
|
8 bit
|
|
- 40 C
|
+ 125 C
|
AEC-Q100
|
Tray
|
|
|
|
NOR Flash 16 Mbit, 3.0V (2.3V to 3.6V), -40C to 85C, SOIC-N 150mil (Tape & Reel), Single SPI DataFlash (Micron M25PE Replacement)
- AT25PE16-SSHF-T
- Renesas / Dialog
-
1:
$3.58
-
9,613In Stock
|
Mouser Part No
988-AT25PE16-SSHF-T
|
Renesas / Dialog
|
NOR Flash 16 Mbit, 3.0V (2.3V to 3.6V), -40C to 85C, SOIC-N 150mil (Tape & Reel), Single SPI DataFlash (Micron M25PE Replacement)
|
|
9,613In Stock
|
|
|
$3.58
|
|
|
$3.35
|
|
|
$3.26
|
|
|
$3.17
|
|
|
View
|
|
|
$2.40
|
|
|
$3.11
|
|
|
$3.00
|
|
|
$2.97
|
|
|
$2.88
|
|
|
$2.40
|
|
Min.: 1
Mult.: 1
:
4,000
|
|
|
SMD/SMT
|
SOIC-Narrow-8
|
AT25PE16
|
16 Mbit
|
2.3 V
|
3.6 V
|
22 mA
|
SPI
|
85 MHz
|
2 M x 8
|
8 bit
|
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
NOR Flash 2 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, 264 Byte Binary Page Mode, SOIC-W 208mil (Tube), Single SPI DataFlash
- AT45DB021E-SHN-B
- Renesas / Dialog
-
1:
$1.79
-
30,325In Stock
|
Mouser Part No
556-AT45DB021E-SHN-B
|
Renesas / Dialog
|
NOR Flash 2 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, 264 Byte Binary Page Mode, SOIC-W 208mil (Tube), Single SPI DataFlash
|
|
30,325In Stock
|
|
|
$1.79
|
|
|
$1.67
|
|
|
$1.63
|
|
|
$1.60
|
|
|
View
|
|
|
$1.55
|
|
|
$1.51
|
|
|
$1.47
|
|
|
$1.24
|
|
|
$1.19
|
|
Min.: 1
Mult.: 1
|
|
|
SMD/SMT
|
SOIC-Wide-8
|
AT45DB021E
|
2 Mbit
|
1.65 V
|
3.6 V
|
15 mA
|
SPI
|
70 MHz
|
256 k x 8
|
8 bit
|
Synchronous
|
- 40 C
|
+ 85 C
|
|
Tube
|
|
|
|
NOR Flash 32Mb 2.7V-3.6V SQI Flash Memory
- SST26VF032BT-104I/MF
- Microchip Technology
-
1:
$2.58
-
17,745In Stock
|
Mouser Part No
579-T26VF032BT104IMF
|
Microchip Technology
|
NOR Flash 32Mb 2.7V-3.6V SQI Flash Memory
|
|
17,745In Stock
|
|
|
$2.58
|
|
|
$2.57
|
|
|
$2.54
|
|
|
$2.37
|
|
|
$2.37
|
|
|
$2.36
|
|
Min.: 1
Mult.: 1
:
2,000
|
|
|
SMD/SMT
|
TDFN-S-8
|
|
32 Mbit
|
2.7 V
|
3.6 V
|
20 mA
|
SPI
|
104 MHz
|
4 M x 8
|
8 bit
|
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape
|
|
|
|
NOR Flash 512Mb, 3V, 133Mhz SPI NOR Flash
- S25FL512SAGMFIR10
- Infineon Technologies
-
1:
$8.85
-
4,239In Stock
|
Mouser Part No
797-25FL512SAGMFIR10
|
Infineon Technologies
|
NOR Flash 512Mb, 3V, 133Mhz SPI NOR Flash
|
|
4,239In Stock
|
|
|
$8.85
|
|
|
$7.62
|
|
|
$7.44
|
|
|
$7.32
|
|
|
View
|
|
|
$6.98
|
|
|
$6.80
|
|
|
$6.57
|
|
|
$6.41
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
SMD/SMT
|
SOIC-16
|
S25FL512S
|
512 Mbit
|
2.7 V
|
3.6 V
|
90 mA
|
SPI
|
133 MHz
|
64 M x 8
|
8 bit
|
Synchronous
|
- 40 C
|
+ 85 C
|
|
Tray
|
|
|
|
NOR Flash HYPERFLASH
- S26KS512SDPBHV020
- Infineon Technologies
-
1:
$22.59
-
913In Stock
|
Mouser Part No
727-26KS512SDPBHV020
|
Infineon Technologies
|
NOR Flash HYPERFLASH
|
|
913In Stock
|
|
|
$22.59
|
|
|
$21.20
|
|
|
$20.55
|
|
|
$19.93
|
|
|
View
|
|
|
$19.46
|
|
|
$18.74
|
|
|
$18.38
|
|
Min.: 1
Mult.: 1
|
|
|
SMD/SMT
|
FBGA-24
|
S26KL/S26KS
|
512 Mbit
|
1.7 V
|
1.95 V
|
180 mA
|
Parallel
|
166 MHz
|
64 M x 8
|
8 bit
|
Synchronous
|
- 40 C
|
+ 105 C
|
|
Tray
|
|
|
|
NOR Flash STD SPI
- S25FL512SDPMFVG10
- Infineon Technologies
-
1:
$9.11
-
2,498In Stock
|
Mouser Part No
727-S25FL512SDPMFVG0
|
Infineon Technologies
|
NOR Flash STD SPI
|
|
2,498In Stock
|
|
|
$9.11
|
|
|
$8.47
|
|
|
$8.28
|
|
|
$7.14
|
|
|
$7.11
|
|
Min.: 1
Mult.: 1
|
|
|
SMD/SMT
|
SOIC-16
|
S25FL512S
|
512 Mbit
|
2.7 V
|
3.6 V
|
90 mA
|
SPI
|
66 MHz
|
64 M x 8
|
8 bit
|
Synchronous
|
- 40 C
|
+ 105 C
|
|
Tray
|
|
|
|
NOR Flash 1 Mbit, Wide Vcc (1.7V to 3.6V), -40C to 85C, DFN 2x3 (Tape & Reel), Single, Dual SPI NOR flash
- AT25DF011-MAHN-T
- Renesas / Dialog
-
1:
$1.63
-
15,401In Stock
|
Mouser Part No
988-AT25DF011-MAHN-T
|
Renesas / Dialog
|
NOR Flash 1 Mbit, Wide Vcc (1.7V to 3.6V), -40C to 85C, DFN 2x3 (Tape & Reel), Single, Dual SPI NOR flash
|
|
15,401In Stock
|
|
|
$1.63
|
|
|
$1.54
|
|
|
$1.49
|
|
|
$1.45
|
|
|
View
|
|
|
$1.06
|
|
|
$1.42
|
|
|
$1.38
|
|
|
$1.35
|
|
|
$1.31
|
|
|
$1.06
|
|
Min.: 1
Mult.: 1
:
5,000
|
|
|
SMD/SMT
|
UDFN-8
|
AT25DF011
|
1 Mbit
|
1.65 V
|
3.6 V
|
18 mA
|
SPI
|
104 MHz
|
128 k x 8
|
8 bit
|
Synchronous
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
NOR Flash 4.5 to 5.5 1Mbit Multi-Purpose Flash
- SST39SF010A-70-4I-NHE-T
- Microchip Technology
-
1:
$2.19
-
2,174In Stock
|
Mouser Part No
579-39SF010A7INHET
|
Microchip Technology
|
NOR Flash 4.5 to 5.5 1Mbit Multi-Purpose Flash
|
|
2,174In Stock
|
|
|
$2.19
|
|
|
$2.14
|
|
|
$2.13
|
|
|
$2.04
|
|
|
Quote
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
:
750
|
|
|
SMD/SMT
|
PLCC-32
|
SST39SF
|
1 Mbit
|
4.5 V
|
5.5 V
|
25 mA
|
Parallel
|
|
128 k x 8
|
8 bit
|
Asynchronous
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
NOR Flash 4.5V to 5.5V 1Mbit Multi-Purpose Flash
- SST39SF010A-55-4I-NHE-T
- Microchip Technology
-
1:
$2.27
-
1,219In Stock
|
Mouser Part No
579-SST3910A554INHET
|
Microchip Technology
|
NOR Flash 4.5V to 5.5V 1Mbit Multi-Purpose Flash
|
|
1,219In Stock
|
|
|
$2.27
|
|
|
$2.26
|
|
|
$2.09
|
|
|
$2.08
|
|
|
$2.07
|
|
|
$2.01
|
|
Min.: 1
Mult.: 1
:
750
|
|
|
SMD/SMT
|
PLCC-32
|
SST39SF
|
1 Mbit
|
4.5 V
|
5.5 V
|
25 mA
|
Parallel
|
|
128 k x 8
|
8 bit
|
Asynchronous
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
NOR Flash 3.0 to 3.6V 4Mbit Multi-Purpose Flash
- SST39LF040-55-4C-NHE-T
- Microchip Technology
-
1:
$2.66
-
2,021In Stock
|
Mouser Part No
579-SST39LF040554CN
|
Microchip Technology
|
NOR Flash 3.0 to 3.6V 4Mbit Multi-Purpose Flash
|
|
2,021In Stock
|
|
|
$2.66
|
|
|
$2.58
|
|
|
$2.52
|
|
|
$2.40
|
|
Min.: 1
Mult.: 1
:
750
|
|
|
SMD/SMT
|
PLCC-32
|
SST39LF
|
4 Mbit
|
3 V
|
3.6 V
|
20 mA
|
Parallel
|
|
512 k x 8
|
8 bit
|
Asynchronous
|
0 C
|
+ 70 C
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
NOR Flash 8M (1Mx8) 33MHz 3.0-3.6V Commercial
- SST49LF080A-33-4C-NHE-T
- Microchip Technology
-
1:
$6.85
-
447In Stock
|
Mouser Part No
804-49LF080A3CNHE-T
|
Microchip Technology
|
NOR Flash 8M (1Mx8) 33MHz 3.0-3.6V Commercial
|
|
447In Stock
|
|
|
$6.85
|
|
|
$6.11
|
|
|
$5.69
|
|
|
$5.69
|
|
|
Quote
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
:
750
|
|
|
SMD/SMT
|
PLCC-32
|
SST49LF
|
8 Mbit
|
3 V
|
3.6 V
|
12 mA
|
SPI
|
33 MHz
|
1 M x 8
|
8 bit
|
Asynchronous, Synchronous
|
0 C
|
+ 85 C
|
|
Reel, Cut Tape
|
|
|
|
NOR Flash 64 Mbit, 3.0V (2.7V to 3.6V), -40C to 85C, DFN 5x6 (Tape & Reel), Quad Enabled (Single, Dual, Quad) SPI NOR flash
- AT25QF641B-MHB-T
- Renesas / Dialog
-
1:
$2.47
-
3,826In Stock
-
6,000On Order
|
Mouser Part No
724-AT25QF641B-MHB-T
|
Renesas / Dialog
|
NOR Flash 64 Mbit, 3.0V (2.7V to 3.6V), -40C to 85C, DFN 5x6 (Tape & Reel), Quad Enabled (Single, Dual, Quad) SPI NOR flash
|
|
3,826In Stock
6,000On Order
|
|
|
$2.47
|
|
|
$2.30
|
|
|
$2.24
|
|
|
$2.19
|
|
|
View
|
|
|
$1.66
|
|
|
$2.13
|
|
|
$2.07
|
|
|
$2.04
|
|
|
$1.99
|
|
|
$1.66
|
|
|
$1.66
|
|
Min.: 1
Mult.: 1
:
6,000
|
|
|
SMD/SMT
|
UDFN-8
|
AT25QF641
|
64 Mbit
|
2.7 V
|
3.6 V
|
7.5 mA
|
SPI
|
104 MHz
|
8 M x 8
|
8 bit
|
Asynchronous
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
NOR Flash 16Mbit SPI/SQI flash 105C, 2.3V-3.6V
- SST26VF016BT-104V/MF
- Microchip Technology
-
1:
$2.43
-
2,549In Stock
|
Mouser Part No
579-T26VF016BT104VMF
|
Microchip Technology
|
NOR Flash 16Mbit SPI/SQI flash 105C, 2.3V-3.6V
|
|
2,549In Stock
|
|
Min.: 1
Mult.: 1
:
2,000
|
|
|
SMD/SMT
|
WDFN-8
|
|
16 Mbit
|
2.7 V
|
3.6 V
|
25 mA
|
SPI
|
104 MHz
|
2 M x 8
|
8 bit
|
Synchronous
|
- 40 C
|
+ 105 C
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
NOR Flash 4.5 to 5.5 2Mbit Multi-Purpose Flash
- SST39SF020A-55-4C-NHE
- Microchip Technology
-
1:
$2.27
-
1,025In Stock
|
Mouser Part No
579-39SF020A5CNHE
|
Microchip Technology
|
NOR Flash 4.5 to 5.5 2Mbit Multi-Purpose Flash
|
|
1,025In Stock
|
|
|
$2.27
|
|
|
$2.21
|
|
|
$2.15
|
|
|
$2.13
|
|
Min.: 1
Mult.: 1
|
|
|
SMD/SMT
|
PLCC-32
|
SST39SF
|
2 Mbit
|
4.5 V
|
5.5 V
|
25 mA
|
Parallel
|
|
256 k x 8
|
8 bit
|
Asynchronous
|
0 C
|
+ 70 C
|
|
Tube
|
|
|
|
NOR Flash 2.7 to 3.6V 16Mbit Multi-Purpose Flash
- SST39VF1681-70-4I-EKE-T
- Microchip Technology
-
1:
$4.02
-
1,553In Stock
|
Mouser Part No
579-39VF16817IEKET
|
Microchip Technology
|
NOR Flash 2.7 to 3.6V 16Mbit Multi-Purpose Flash
|
|
1,553In Stock
|
|
|
$4.02
|
|
|
$3.51
|
|
|
$3.42
|
|
|
$3.37
|
|
|
View
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
:
1,000
|
|
|
SMD/SMT
|
TSOP-48
|
SST39VF
|
16 Mbit
|
2.7 V
|
3.6 V
|
18 mA
|
Parallel
|
|
2 M x 8
|
8 bit
|
Asynchronous
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
NOR Flash 8 Mbit, Wide Vcc (1.7V to 3.6V), -40C to 85C, DFN 5x6 (Tray), Single SPI DataFlash (Micron M25PE Replacement)
- AT25PE80-MHN-Y
- Renesas / Dialog
-
1:
$2.61
-
1,162In Stock
|
Mouser Part No
988-AT25PE80-MHN-Y
|
Renesas / Dialog
|
NOR Flash 8 Mbit, Wide Vcc (1.7V to 3.6V), -40C to 85C, DFN 5x6 (Tray), Single SPI DataFlash (Micron M25PE Replacement)
|
|
1,162In Stock
|
|
|
$2.61
|
|
|
$2.43
|
|
|
$2.36
|
|
|
$2.30
|
|
|
View
|
|
|
$2.26
|
|
|
$2.17
|
|
|
$2.15
|
|
|
$2.08
|
|
|
$1.88
|
|
Min.: 1
Mult.: 1
|
|
|
SMD/SMT
|
UDFN-8
|
AT25PE80
|
8 Mbit
|
1.7 V
|
3.6 V
|
16 mA
|
SPI
|
85 MHz
|
1 M x 8
|
8 bit
|
|
- 40 C
|
+ 85 C
|
|
Tray
|
|
|
|
NOR Flash SEMPER
- S25HS512TFABHM010
- Infineon Technologies
-
1:
$12.48
-
61In Stock
|
Mouser Part No
727-25H512TFABHM010
|
Infineon Technologies
|
NOR Flash SEMPER
|
|
61In Stock
|
|
|
$12.48
|
|
|
$11.60
|
|
|
$11.25
|
|
|
$10.97
|
|
|
View
|
|
|
$10.70
|
|
|
$9.52
|
|
|
$9.32
|
|
|
$9.12
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
SMD/SMT
|
FBGA-24
|
|
512 Mbit
|
1.7 V
|
2 V
|
10 mA
|
SPI
|
166 MHz
|
64 M x 8
|
8 bit
|
Synchronous
|
- 40 C
|
+ 125 C
|
|
Tray
|
|
|
|
NOR Flash STD SPI
- S25FL128SAGMFMR00
- Infineon Technologies
-
1:
$5.42
-
305In Stock
|
Mouser Part No
727-5FL128SAGMFMR00
|
Infineon Technologies
|
NOR Flash STD SPI
|
|
305In Stock
|
|
|
$5.42
|
|
|
$5.05
|
|
|
$4.90
|
|
|
$4.78
|
|
|
View
|
|
|
$4.68
|
|
|
$4.52
|
|
|
$3.97
|
|
|
$3.91
|
|
|
$3.85
|
|
Min.: 1
Mult.: 1
|
|
|
SMD/SMT
|
SOIC-16
|
S25FL128S
|
128 Mbit
|
2.7 V
|
3.6 V
|
100 mA
|
SPI
|
133 MHz
|
16 M x 8
|
8 bit
|
Synchronous
|
- 40 C
|
+ 125 C
|
AEC-Q100
|
Tray
|
|
|
|
NOR Flash
- GD25Q32ESIG
- GigaDevice
-
1:
$1.00
-
4,305In Stock
|
Mouser Part No
363-GD25Q32ESIG
|
GigaDevice
|
NOR Flash
|
|
4,305In Stock
|
|
|
$1.00
|
|
|
$0.937
|
|
|
$0.912
|
|
|
$0.893
|
|
|
View
|
|
|
$0.873
|
|
|
$0.847
|
|
|
$0.827
|
|
|
$0.807
|
|
|
$0.787
|
|
Min.: 1
Mult.: 1
|
|
|
SMD/SMT
|
SOP-8
|
GD25Q32E
|
32 Mbit
|
2.7 V
|
3.6 V
|
25 mA
|
SPI
|
133 MHz
|
4 M x 8
|
8 bit
|
|
- 40 C
|
+ 85 C
|
|
|
|
|
|
NOR Flash
- GD25LE128EWIGR
- GigaDevice
-
1:
$2.45
-
1,618In Stock
|
Mouser Part No
363-GD25LE128EWIGR
|
GigaDevice
|
NOR Flash
|
|
1,618In Stock
|
|
|
$2.45
|
|
|
$2.29
|
|
|
$2.23
|
|
|
$2.17
|
|
|
View
|
|
|
$1.57
|
|
|
$2.13
|
|
|
$2.06
|
|
|
$2.04
|
|
|
$1.98
|
|
|
$1.57
|
|
Min.: 1
Mult.: 1
:
3,000
|
|
|
SMD/SMT
|
WSON-8
|
GD25LE128E
|
128 Mbit
|
1.65 V
|
2 V
|
9 mA
|
SPI
|
133 MHz
|
16 M x 8
|
8 bit
|
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape
|
|
|
|
NOR Flash 1.65V to 1.95V 4Mbit SPI Serial Flash
- SST25WF040BT-40I/NP
- Microchip Technology
-
1:
$1.40
-
2,038In Stock
|
Mouser Part No
579-25WF040BT-40I/NP
|
Microchip Technology
|
NOR Flash 1.65V to 1.95V 4Mbit SPI Serial Flash
|
|
2,038In Stock
|
|
Min.: 1
Mult.: 1
:
3,000
|
|
|
SMD/SMT
|
USON-8
|
SST25WF
|
4 Mbit
|
1.65 V
|
1.95 V
|
15 mA
|
SPI
|
40 MHz
|
512 k x 8
|
8 bit
|
Synchronous
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
NOR Flash STD SPI
- S25FL128SAGMFIG11
- Infineon Technologies
-
1:
$4.62
-
746In Stock
-
705Expected 2026/08/20
|
Mouser Part No
727-S25FL128SAGMFIG1
|
Infineon Technologies
|
NOR Flash STD SPI
|
|
746In Stock
705Expected 2026/08/20
|
|
|
$4.62
|
|
|
$4.31
|
|
|
$4.18
|
|
|
$4.09
|
|
|
View
|
|
|
$3.99
|
|
|
$3.87
|
|
|
$3.77
|
|
|
$3.42
|
|
|
$3.33
|
|
Min.: 1
Mult.: 1
|
|
|
SMD/SMT
|
SOIC-16
|
S25FL128S
|
128 Mbit
|
2.7 V
|
3.6 V
|
100 mA
|
SPI
|
133 MHz
|
16 M x 8
|
8 bit
|
Synchronous
|
- 40 C
|
+ 85 C
|
|
Tube
|
|
|
|
NOR Flash 16Mbit NOR Flash /3.3V /SOP8 150mil /Industrial(-40? to +125?) /T&R
- GD25Q16CTEGR
- GigaDevice
-
1:
$1.22
-
3,261In Stock
|
Mouser Part No
363-GD25Q16CTEGR
|
GigaDevice
|
NOR Flash 16Mbit NOR Flash /3.3V /SOP8 150mil /Industrial(-40? to +125?) /T&R
|
|
3,261In Stock
|
|
|
$1.22
|
|
|
$1.15
|
|
|
$1.12
|
|
|
$1.09
|
|
|
View
|
|
|
$0.942
|
|
|
$1.07
|
|
|
$1.03
|
|
|
$1.01
|
|
|
$0.98
|
|
|
$0.942
|
|
Min.: 1
Mult.: 1
:
3,000
|
|
|
SMD/SMT
|
SOP-8
|
GD25Q16C
|
16 Mbit
|
2.7 V
|
3.6 V
|
25 mA
|
SPI
|
120 MHz
|
2 M x 8
|
8 bit
|
|
- 40 C
|
+ 125 C
|
|
Reel, Cut Tape
|
|
|
|
NOR Flash 64Mb 2.3V TO 3.6V SQI Flash Memory w/EUI
- SST26VF064BEUI-104I/MF
- Microchip Technology
-
1:
$4.65
-
1,738In Stock
|
Mouser Part No
579-6VF064BEUI104IMF
|
Microchip Technology
|
NOR Flash 64Mb 2.3V TO 3.6V SQI Flash Memory w/EUI
|
|
1,738In Stock
|
|
|
$4.65
|
|
|
$4.57
|
|
|
$4.56
|
|
Min.: 1
Mult.: 1
|
|
|
SMD/SMT
|
|
|
64 Mbit
|
2.7 V
|
3.6 V
|
20 mA
|
SPI
|
104 MHz
|
8 M x 8
|
8 bit
|
|
- 40 C
|
+ 85 C
|
|
Tube
|
|
South Africa
