|
|
16-bit Microcontrollers - MCU 16b 256KB Flash 96K RAM USB
- PIC24FJ256GB206-I/MR
- Microchip Technology
-
1:
$8.07
-
242In Stock
|
Mouser Part No
579-PIC24FJ6GB206IMR
|
Microchip Technology
|
16-bit Microcontrollers - MCU 16b 256KB Flash 96K RAM USB
|
|
242In Stock
|
|
|
$8.07
|
|
|
$7.34
|
|
|
$7.33
|
|
Min.: 1
Mult.: 1
|
|
|
PIC24F
|
256 kB
|
96 kB
|
QFN-64
|
32 MHz
|
10 bit
|
52 I/O
|
2 V
|
3.6 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
PIC24FJxxxGB2xx
|
|
Tube
|
|
|
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 16K 20LSSOP -40 to 85 C
- R5F1006AASP#50
- Renesas Electronics
-
1:
$1.45
-
2,271In Stock
|
Mouser Part No
968-R5F1006AASP#50
|
Renesas Electronics
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 16K 20LSSOP -40 to 85 C
|
|
2,271In Stock
|
|
|
$1.45
|
|
|
$1.06
|
|
|
$0.927
|
|
|
$0.85
|
|
|
$0.714
|
|
|
View
|
|
|
$0.84
|
|
|
$0.694
|
|
Min.: 1
Mult.: 1
:
2,500
|
|
|
RL78
|
512 kB
|
32 kB
|
LSSOP-20
|
32 MHz
|
8 bit, 10 bit
|
16 I/O
|
1.6 V
|
5.5 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
RL78/G13
|
|
Reel, Cut Tape
|
|
|
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 32K 48LFQFP -40 to 85 C
- R5F100GCAFB#50
- Renesas Electronics
-
1:
$1.90
-
2,090In Stock
|
Mouser Part No
968-R5F100GCAFB#50
|
Renesas Electronics
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 32K 48LFQFP -40 to 85 C
|
|
2,090In Stock
|
|
|
$1.90
|
|
|
$1.40
|
|
|
$1.23
|
|
|
$1.13
|
|
|
$0.947
|
|
|
View
|
|
|
$1.07
|
|
|
$1.02
|
|
|
$0.991
|
|
|
$0.926
|
|
Min.: 1
Mult.: 1
:
2,000
|
|
|
RL78
|
32 kB
|
2 kB
|
LFQFP-48
|
32 MHz
|
8 bit, 10 bit
|
44 I/O
|
1.6 V
|
5.5 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
RL78/G13
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 128K 80LQFP -40 to 85 C
- R5F100MGAFA#10
- Renesas Electronics
-
1:
$3.51
-
1,372In Stock
|
Mouser Part No
968-R5F100MGAFA#10
|
Renesas Electronics
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 128K 80LQFP -40 to 85 C
|
|
1,372In Stock
|
|
|
$3.51
|
|
|
$2.74
|
|
|
$2.33
|
|
|
$2.24
|
|
|
$2.22
|
|
Min.: 1
Mult.: 1
|
|
|
RL78
|
128 kB
|
12 kB
|
LQFP-80
|
32 MHz
|
8 bit/10 bit
|
74 I/O
|
1.6 V
|
5.5 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
RL78/G13
|
|
Tray
|
|
|
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU_RL78/F13-CAN_128KB_20SSOP
- R5F10BAGLSP#U5
- Renesas Electronics
-
1:
$4.40
-
3,483In Stock
|
Mouser Part No
968-R5F10BAGLSP#U5
|
Renesas Electronics
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU_RL78/F13-CAN_128KB_20SSOP
|
|
3,483In Stock
|
|
|
$4.40
|
|
|
$3.33
|
|
|
$3.09
|
|
|
$2.66
|
|
|
View
|
|
|
$2.56
|
|
|
$2.52
|
|
|
$2.50
|
|
|
$2.40
|
|
Min.: 1
Mult.: 1
|
|
|
RL78
|
128 kB
|
8 kB
|
SSOP-30
|
32 MHz
|
10 bit
|
23 I/O
|
2.7 V
|
5.5 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 105 C
|
RL78/F13
|
AEC-Q100
|
Tray
|
|
|
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU_RL78/F13-CAN_128KB 48QFN
- R5F10BGGLNA#U5
- Renesas Electronics
-
1:
$4.73
-
556In Stock
|
Mouser Part No
968-R5F10BGGLNA#U5
|
Renesas Electronics
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU_RL78/F13-CAN_128KB 48QFN
|
|
556In Stock
|
|
|
$4.73
|
|
|
$3.61
|
|
|
$3.22
|
|
|
$3.00
|
|
|
View
|
|
|
$2.79
|
|
|
$2.77
|
|
|
$2.65
|
|
|
$2.61
|
|
Min.: 1
Mult.: 1
|
|
|
RL78
|
128 kB
|
8 kB
|
HVQFN-48
|
32 MHz
|
10 bit
|
38 I/O
|
2.7 V
|
5.5 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 105 C
|
RL78/F13
|
AEC-Q100
|
Tray
|
|
|
|
16-bit Microcontrollers - MCU 16-Bit MCU, 16 MIPS 256K Flash, 32K RAM
- PIC24FJ256GB606-I/PT
- Microchip Technology
-
1:
$5.37
-
1,031In Stock
|
Mouser Part No
579-24FJ256GB606IPT
|
Microchip Technology
|
16-bit Microcontrollers - MCU 16-Bit MCU, 16 MIPS 256K Flash, 32K RAM
|
|
1,031In Stock
|
|
|
$5.37
|
|
|
$4.92
|
|
|
$4.47
|
|
Min.: 1
Mult.: 1
|
|
|
PIC24F
|
256 kB
|
32 kB
|
TQFP-64
|
32 MHz
|
10 bit, 12 bit
|
53 I/O
|
2 V
|
3.6 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
PIC24FJxxxGB606
|
|
Tray
|
|
|
|
16-bit Microcontrollers - MCU 16-Bit, 16 MIPS, 256KB ECC Flash, 32KB RAM, USB, LCD, 100-pin
- PIC24FJ256GU410-I/PT
- Microchip Technology
-
1:
$4.23
-
938In Stock
|
Mouser Part No
579-24FJ256GU410IPT
|
Microchip Technology
|
16-bit Microcontrollers - MCU 16-Bit, 16 MIPS, 256KB ECC Flash, 32KB RAM, USB, LCD, 100-pin
|
|
938In Stock
|
|
Min.: 1
Mult.: 1
|
|
|
PIC24F
|
256 kB
|
32 kB
|
TQFP-100
|
32 MHz
|
10 bit, 12 bit
|
85 I/O
|
2 V
|
3.6 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
PIC24FJ
|
|
Tray
|
|
|
|
16-bit Microcontrollers - MCU 16-bit, 16 MIPS, 64KB ECC Flash, 8KB RAM, XLP, 28-pin
- PIC24FJ64GP202-I/MV
- Microchip Technology
-
1:
$1.86
-
927In Stock
|
Mouser Part No
579-24FJ64GP202-I/MV
|
Microchip Technology
|
16-bit Microcontrollers - MCU 16-bit, 16 MIPS, 64KB ECC Flash, 8KB RAM, XLP, 28-pin
|
|
927In Stock
|
|
|
$1.86
|
|
|
$1.83
|
|
|
$1.71
|
|
|
$1.54
|
|
Min.: 1
Mult.: 1
|
|
|
PIC24F
|
64 kB
|
8 kB
|
UQFN-28
|
32 MHz
|
10 bit, 12 bit
|
21 I/O
|
2 V
|
3.6 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
|
|
Tube
|
|
|
|
16-bit Microcontrollers - MCU 16KB FL 1KB RAM 512B 3V 10-bit ADC
- PIC24F16KL402-I/MQ
- Microchip Technology
-
1:
$2.90
-
2,006In Stock
|
Mouser Part No
579-PC24F16KL402IMQ
|
Microchip Technology
|
16-bit Microcontrollers - MCU 16KB FL 1KB RAM 512B 3V 10-bit ADC
|
|
2,006In Stock
|
|
|
$2.90
|
|
|
$2.66
|
|
|
$2.41
|
|
Min.: 1
Mult.: 1
|
|
|
PIC24F
|
16 kB
|
1 kB
|
QFN-28
|
32 MHz
|
10 bit
|
24 I/O
|
1.8 V
|
3.6 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
PIC24FxxKL40x
|
AEC-Q100
|
Tube
|
|
|
|
16-bit Microcontrollers - MCU 16B 16MIPS 128KB RAM 53 I/O
- PIC24FJ128GA106T-I/PT
- Microchip Technology
-
1:
$6.27
-
1,521In Stock
|
Mouser Part No
579-PIC2128GA106TIPT
|
Microchip Technology
|
16-bit Microcontrollers - MCU 16B 16MIPS 128KB RAM 53 I/O
|
|
1,521In Stock
|
|
|
$6.27
|
|
|
$6.11
|
|
|
$5.19
|
|
Min.: 1
Mult.: 1
:
1,200
|
|
|
PIC24F
|
128 kB
|
16 kB
|
TQFP-64
|
32 MHz
|
10 bit
|
53 I/O
|
2 V
|
3.6 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
PIC24FJxxxGA106
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
16-bit Microcontrollers - MCU 16-bit 128KB Flash 96K RAM USB
- PIC24FJ128GB206-I/MR
- Microchip Technology
-
1:
$8.16
-
830In Stock
|
Mouser Part No
579-PIC24FJ1GB206IMR
|
Microchip Technology
|
16-bit Microcontrollers - MCU 16-bit 128KB Flash 96K RAM USB
|
|
830In Stock
|
|
Min.: 1
Mult.: 1
|
|
|
PIC24F
|
128 kB
|
96 kB
|
QFN-64
|
32 MHz
|
10 bit
|
52 I/O
|
2 V
|
3.6 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
PIC24FJxxxGB2xx
|
|
Tube
|
|
|
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 64K 44LQFP -40 to 85 C
- R5F100FEAFP#50
- Renesas Electronics
-
1:
$2.91
-
1,723In Stock
|
Mouser Part No
968-R5F100FEAFP#50
|
Renesas Electronics
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 64K 44LQFP -40 to 85 C
|
|
1,723In Stock
|
|
|
$2.91
|
|
|
$2.01
|
|
|
$1.81
|
|
|
$1.63
|
|
|
$1.26
|
|
|
View
|
|
|
$1.54
|
|
|
$1.48
|
|
|
$1.22
|
|
|
$1.17
|
|
Min.: 1
Mult.: 1
:
1,000
|
|
|
RL78
|
512 kB
|
32 kB
|
LFQFP-44
|
32 MHz
|
8 bit, 10 bit
|
40 I/O
|
1.6 V
|
5.5 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
RL78/G13
|
|
Reel, Cut Tape
|
|
|
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 128K 64LQFP -40 to 85 C
- R5F100LGAFA#10
- Renesas Electronics
-
1:
$3.34
-
852In Stock
|
Mouser Part No
968-R5F100LGAFA#10
|
Renesas Electronics
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 128K 64LQFP -40 to 85 C
|
|
852In Stock
|
|
|
$3.34
|
|
|
$2.51
|
|
|
$2.30
|
|
|
$2.07
|
|
|
View
|
|
|
$1.97
|
|
|
$1.94
|
|
|
$1.76
|
|
|
$1.74
|
|
|
$1.71
|
|
Min.: 1
Mult.: 1
|
|
|
RL78
|
128 kB
|
12 kB
|
LQFP-64
|
32 MHz
|
8 bit/10 bit
|
58 I/O
|
1.6 V
|
5.5 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
RL78/G13
|
|
Tray
|
|
|
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 256K 100LFQFP -40 to 85 C
- R5F100PJAFB#10
- Renesas Electronics
-
1:
$5.66
-
660In Stock
|
Mouser Part No
968-R5F100PJAFB#10
|
Renesas Electronics
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 256K 100LFQFP -40 to 85 C
|
|
660In Stock
|
|
|
$5.66
|
|
|
$4.33
|
|
|
$3.99
|
|
|
$3.63
|
|
|
View
|
|
|
$3.45
|
|
|
$3.17
|
|
|
$3.15
|
|
Min.: 1
Mult.: 1
|
|
|
RL78
|
256 kB
|
20 kB
|
LFQFP-100
|
32 MHz
|
8 bit/10 bit
|
92 I/O
|
1.6 V
|
5.5 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
RL78/G13
|
|
Tray
|
|
|
|
16-bit Microcontrollers - MCU 16-Bit MCU, 16 MIPS 128K Flash, 32K RAM
- PIC24FJ128GA610-I/PT
- Microchip Technology
-
1:
$5.27
-
965In Stock
|
Mouser Part No
579-24FJ128GA610IPT
|
Microchip Technology
|
16-bit Microcontrollers - MCU 16-Bit MCU, 16 MIPS 128K Flash, 32K RAM
|
|
965In Stock
|
|
Min.: 1
Mult.: 1
|
|
|
PIC24F
|
128 kB
|
32 kB
|
TQFP-100
|
32 MHz
|
10 bit, 12 bit
|
85 I/O
|
2 V
|
3.6 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
PIC24FJxxxGA610
|
|
Tray
|
|
|
|
16-bit Microcontrollers - MCU 16-Bit MCU, 16 MIPS 512K Flash, 32K RAM
- PIC24FJ512GA610-I/PT
- Microchip Technology
-
1:
$5.62
-
2,635In Stock
|
Mouser Part No
579-24FJ512GA610IPT
|
Microchip Technology
|
16-bit Microcontrollers - MCU 16-Bit MCU, 16 MIPS 512K Flash, 32K RAM
|
|
2,635In Stock
|
|
Min.: 1
Mult.: 1
|
|
|
PIC24F
|
512 kB
|
32 kB
|
TQFP-100
|
32 MHz
|
10 bit, 12 bit
|
85 I/O
|
2 V
|
3.6 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
PIC24FJxxxGA610
|
|
Tray
|
|
|
|
16-bit Microcontrollers - MCU 16-bit, 16 MIPS, 64KB Flash, 16KB RAM
- PIC24FJ128GA705T-I/M4
- Microchip Technology
-
1:
$1.97
-
2,716In Stock
|
Mouser Part No
579-FJ128GA705T-I/M4
|
Microchip Technology
|
16-bit Microcontrollers - MCU 16-bit, 16 MIPS, 64KB Flash, 16KB RAM
|
|
2,716In Stock
|
|
|
$1.97
|
|
|
$1.93
|
|
|
$1.80
|
|
|
$1.79
|
|
|
$1.78
|
|
|
$1.63
|
|
Min.: 1
Mult.: 1
:
3,300
|
|
|
PIC24F
|
128 kB
|
16 kB
|
UQFN-48
|
32 MHz
|
10 bit, 12 bit
|
40 I/O
|
2 V
|
3.6 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
PIC24FJxxxGA70x
|
|
Reel, Cut Tape
|
|
|
|
16-bit Microcontrollers - MCU 256KB Flash 16Kb RAM 53 I/O nanoWatt
- PIC24FJ256GA106-E/PT
- Microchip Technology
-
1:
$7.72
-
312In Stock
|
Mouser Part No
579-FJ256GA106-E/PT
|
Microchip Technology
|
16-bit Microcontrollers - MCU 256KB Flash 16Kb RAM 53 I/O nanoWatt
|
|
312In Stock
|
|
|
$7.72
|
|
|
$7.07
|
|
|
$6.41
|
|
Min.: 1
Mult.: 1
|
|
|
PIC24F
|
256 kB
|
16 kB
|
TQFP-64
|
32 MHz
|
10 bit
|
52 I/O
|
2 V
|
3.6 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 125 C
|
PIC24FJxxxGA106
|
|
Tray
|
|
|
|
16-bit Microcontrollers - MCU 16B 16MIPS 128KB RAM 53 I/O
- PIC24FJ192GA106-I/PT
- Microchip Technology
-
1:
$6.44
-
1,571In Stock
|
Mouser Part No
579-PIC24192GA106IPT
|
Microchip Technology
|
16-bit Microcontrollers - MCU 16B 16MIPS 128KB RAM 53 I/O
|
|
1,571In Stock
|
|
|
$6.44
|
|
|
$6.41
|
|
|
$6.07
|
|
|
$6.06
|
|
|
Quote
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
PIC24F
|
192 kB
|
16 kB
|
TQFP-64
|
32 MHz
|
10 bit
|
53 I/O
|
2 V
|
3.6 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
PIC24FJxxxGA106
|
|
Tray
|
|
|
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 16K 20LSSOP -40 to 105 C
- R5F1006AGSP#50
- Renesas Electronics
-
1:
$3.42
-
2,409In Stock
|
Mouser Part No
968-R5F1006AGSP#50
|
Renesas Electronics
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 16K 20LSSOP -40 to 105 C
|
|
2,409In Stock
|
|
|
$3.42
|
|
|
$2.26
|
|
|
$2.08
|
|
|
$1.81
|
|
|
View
|
|
|
$1.24
|
|
|
$1.70
|
|
|
$1.49
|
|
|
$1.27
|
|
|
$1.24
|
|
Min.: 1
Mult.: 1
:
2,500
|
|
|
RL78
|
512 kB
|
32 kB
|
LSSOP-20
|
32 MHz
|
8 bit, 10 bit
|
16 I/O
|
1.6 V
|
5.5 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 105 C
|
RL78/G13
|
|
Reel, Cut Tape
|
|
|
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 16K 44LQFP -40 to 85 C
- R5F100FAAFP#50
- Renesas Electronics
-
1:
$3.15
-
1,894In Stock
|
Mouser Part No
968-R5F100FAAFP#50
|
Renesas Electronics
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 16K 44LQFP -40 to 85 C
|
|
1,894In Stock
|
|
|
$3.15
|
|
|
$2.05
|
|
|
$1.88
|
|
|
$1.62
|
|
|
$1.10
|
|
|
View
|
|
|
$1.52
|
|
|
$1.33
|
|
|
$1.08
|
|
|
$1.04
|
|
Min.: 1
Mult.: 1
:
1,000
|
|
|
RL78
|
512 kB
|
32 kB
|
LFQFP-44
|
32 MHz
|
8 bit, 10 bit
|
40 I/O
|
1.6 V
|
5.5 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
RL78/G13
|
|
Reel, Cut Tape
|
|
|
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 512K 128LFQFP -40 to 85 C
- R5F100SLAFB#10
- Renesas Electronics
-
1:
$7.87
-
566In Stock
|
Mouser Part No
968-R5F100SLAFB#10
|
Renesas Electronics
|
16-bit Microcontrollers - MCU 16-BIT GENERAL MCU RL78/G13 512K 128LFQFP -40 to 85 C
|
|
566In Stock
|
|
|
$7.87
|
|
|
$5.50
|
|
|
$5.25
|
|
|
$4.55
|
|
|
View
|
|
|
$4.35
|
|
|
$3.90
|
|
|
$3.86
|
|
|
$3.71
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
RL78
|
512 kB
|
32 kB
|
LFQFP-128
|
32 MHz
|
8 bit/10 bit
|
120 I/O
|
1.6 V
|
5.5 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
RL78/G13
|
|
Tray
|
|
|
|
16-bit Microcontrollers - MCU 4KB Flash512B RAM 3V 10-bit 500ksps ADC
- PIC24F04KA201-I/P
- Microchip Technology
-
1:
$2.87
-
87In Stock
|
Mouser Part No
579-PIC24F04KA201-IP
|
Microchip Technology
|
16-bit Microcontrollers - MCU 4KB Flash512B RAM 3V 10-bit 500ksps ADC
|
|
87In Stock
|
|
|
$2.87
|
|
|
$2.55
|
|
|
$2.43
|
|
|
Quote
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
PIC24F
|
4 kB
|
512 B
|
PDIP-20
|
32 MHz
|
10 bit
|
18 I/O
|
1.8 V
|
3.6 V
|
Through Hole
|
16 bit
|
- 40 C
|
+ 85 C
|
PIC24F04KA20x
|
AEC-Q100
|
Tube
|
|
|
|
16-bit Microcontrollers - MCU 16 BIT MCU, 16 MIPS 64KB Flash, XLP, LCD
- PIC24FJ64GA406-I/PT
- Microchip Technology
-
1:
$5.90
-
159In Stock
|
Mouser Part No
579-24FJ64GA406-I/PT
|
Microchip Technology
|
16-bit Microcontrollers - MCU 16 BIT MCU, 16 MIPS 64KB Flash, XLP, LCD
|
|
159In Stock
|
|
Min.: 1
Mult.: 1
|
|
|
PIC24F
|
64 kB
|
8 kB
|
TQFP-64
|
32 MHz
|
10 bit, 12 bit
|
53 I/O
|
2 V
|
3.6 V
|
SMD/SMT
|
16 bit
|
- 40 C
|
+ 85 C
|
PIC24FJxxxGA4xx
|
|
Tray
|
|
South Africa
