M29W400DT55N6
Micron Technology Inc.
IC FLASH 4MBIT PARALLEL 48TSOP I
Dalam stok17650 pcs
M29W400DT55N6.pdf
4Mbit
-
55 ns
FLASH
55ns
Parallel
M29W400
512K x 8, 256K x 16
Tray
FLASH - NOR
-
-40°C ~ 85°C (TA)
Surface Mount
48-TFSOP (0.724", 18.40mm Width)
48-TSOP I
2.7V ~ 3.6V
Non-Volatile
RFQ
SST39VF400A-70-4I-EKE
Microchip Technology
IC FLASH 4MBIT PARALLEL 48TSOP
Dalam stok23512 pcs
SST39VF400A-70-4I-EKE.pdf
4Mbit
-
70 ns
FLASH
20µs
Parallel
SST39VF400
256K x 16
Tray
FLASH
SST39 MPF™
-40°C ~ 85°C (TA)
Surface Mount
48-TFSOP (0.724', 18.40mm Width)
48-TSOP
2.7V ~ 3.6V
Non-Volatile
RFQ
IS66WVE1M16EBLL-70BLI-TR
ISSI, Integrated Silicon Solution Inc
IC PSRAM 16MBIT PARALLEL 48TFBGA
Dalam stok31855 pcs
IS66WVE1M16EBLL-70BLI-TR.pdf
16Mbit
-
70 ns
PSRAM
70ns
Parallel
IS66WVE1M16
1M x 16
Tape & Reel (TR)
PSRAM (Pseudo SRAM)
-
-40°C ~ 85°C (TA)
Surface Mount
48-TFBGA
48-TFBGA (6x8)
2.7V ~ 3.6V
Volatile
RFQ
DS28DG02G-3C+
Analog Devices Inc./Maxim Integrated
IC EEPROM 2KBIT SPI 2MHZ 36TQFN
Dalam stok11450 pcs
DS28DG02G-3C+.pdf
2Kbit
2 MHz
-
EEPROM
-
SPI
DS28DG02
256 x 8
Tube
EEPROM
-
-40°C ~ 85°C (TA)
Surface Mount
36-WFQFN Exposed Pad
36-TQFN (6x6)
2.2V ~ 5.25V
Non-Volatile
RFQ
MT47H128M4B6-3:D TR
Micron Technology Inc.
IC DRAM 512MBIT PARALLEL 60FBGA
Dalam stok5460 pcs
MT47H128M4B6-3:D TR.pdf
512Mbit
333 MHz
450 ps
DRAM
15ns
Parallel
MT47H128M4
128M x 4
Tape & Reel (TR)
SDRAM - DDR2
-
0°C ~ 85°C (TC)
Surface Mount
60-FBGA
60-FBGA
1.7V ~ 1.9V
Volatile
RFQ
71V67603S150PFGI
Renesas Electronics America Inc
IC SRAM 9MBIT PARALLEL 100TQFP
Dalam stok46850 pcs
71V67603S150PFGI.pdf
9Mbit
150 MHz
3.8 ns
SRAM
-
Parallel
71V67603
256K x 36
Tray
SRAM - Synchronous, SDR
-
-40°C ~ 85°C (TA)
Surface Mount
100-LQFP
100-TQFP (14x14)
3.135V ~ 3.465V
Volatile
RFQ
CY7C028V-20ACKJ
Cypress Semiconductor Corp
IC SRAM 1MBIT PARALLEL 100TQFP
Dalam stok31606 pcs
1Mbit
-
20 ns
SRAM
20ns
Parallel
CY7C028
64K x 16
Bulk
SRAM - Dual Port, Asynchronous
-
0°C ~ 70°C (TA)
Surface Mount
100-LQFP
100-TQFP (14x14)
3V ~ 3.6V
Volatile
RFQ
IS21ES08G-JCLI-TR
ISSI, Integrated Silicon Solution Inc
IC FLASH 64GBIT EMMC 153VFBGA
Dalam stok14020 pcs
IS21ES08G-JCLI-TR.pdf
64Gbit
200 MHz
-
FLASH
-
eMMC
IS21ES08
8G x 8
Tape & Reel (TR)
FLASH - NAND (MLC)
-
-40°C ~ 85°C (TA)
Surface Mount
153-VFBGA
153-VFBGA (11.5x13)
2.7V ~ 3.6V
Non-Volatile
RFQ
71V546S100PFI
IDT, Integrated Device Technology Inc
IC SRAM 4.5MBIT PARALLEL 100TQFP
Dalam stok14274 pcs
4.5Mbit
100 MHz
5 ns
SRAM
-
Parallel
71V546
128K x 36
Bulk
SRAM - Synchronous, SDR (ZBT)
-
-40°C ~ 85°C (TA)
Surface Mount
100-LQFP
100-TQFP (14x14)
3.135V ~ 3.465V
Volatile
RFQ
CY7C25702KV18-550BZXC
Infineon Technologies
IC SRAM 72MBIT PAR 165FBGA
Dalam stok36991 pcs
CY7C25702KV18-550BZXC.pdf
72Mbit
550 MHz
-
SRAM
-
Parallel
CY7C25702
2M x 36
Tray
SRAM - Synchronous, DDR II+
-
0°C ~ 70°C (TA)
Surface Mount
165-LBGA
165-FBGA (13x15)
1.7V ~ 1.9V
Volatile
RFQ
NM93C46LMT8
Fairchild Semiconductor
IC EEPROM 1KBIT MICROWIRE 8TSSOP
Dalam stok33718 pcs
1Kbit
250 kHz
-
EEPROM
15ms
Microwire
93C46
64 x 16
Bulk
EEPROM
-
0°C ~ 70°C (TA)
Surface Mount
8-TSSOP (0.173", 4.40mm Width)
8-TSSOP
2.7V ~ 5.5V
Non-Volatile
RFQ
A9810566-C
ProLabs
Dell A9810566 Compatible Factory
Dalam stok47800 pcs
-
-
-
-
-
-
-
-
Retail Package
-
*
-
-
-
-
-
-
RFQ
70T653MS12BCGI
Renesas Electronics America Inc
IC SRAM 18MBIT PARALLEL 256CABGA
Dalam stok28200 pcs
70T653MS12BCGI.pdf
18Mbit
-
12 ns
SRAM
12ns
Parallel
70T653
512K x 36
Tray
SRAM - Dual Port, Asynchronous
-
-40°C ~ 85°C (TA)
Surface Mount
256-LBGA
256-CABGA (17x17)
2.4V ~ 2.6V
Volatile
RFQ
IS43LD32128B-18BPL-TR
ISSI, Integrated Silicon Solution Inc
IC DRAM 4GBIT HSUL 12 168VFBGA
Dalam stok7586 pcs
IS43LD32128B-18BPL-TR.pdf
4Gbit
533 MHz
5.5 ns
DRAM
15ns
HSUL_12
IS43LD32128
128M x 32
Tape & Reel (TR)
SDRAM - Mobile LPDDR2-S4
Automotive, AEC-Q100
0°C ~ 85°C (TC)
Surface Mount
168-VFBGA
168-VFBGA (12x12)
1.14V ~ 1.3V, 1.7V ~ 1.95V
Volatile
RFQ
70V9179L12PF
Renesas Electronics America Inc
IC SRAM 288KBIT PARALLEL 100TQFP
Dalam stok16674 pcs
70V9179L12PF.pdf
288Kbit
-
12 ns
SRAM
-
Parallel
70V9179
32K x 9
Tray
SRAM - Dual Port, Synchronous
-
0°C ~ 70°C (TA)
Surface Mount
100-LQFP
100-TQFP (14x14)
3V ~ 3.6V
Volatile
RFQ
MT29F4G01ABAFD12-AATES:F TR
Micron Technology Inc.
IC FLASH 4GBIT SPI 24TPBGA
Dalam stok17007 pcs
MT29F4G01ABAFD12-AATES:F TR.pdf
4Gbit
-
-
FLASH
-
SPI
MT29F4G01
4G x 1
Tape & Reel (TR)
FLASH - NAND
-
-40°C ~ 105°C (TC)
Surface Mount
24-TBGA
24-T-PBGA (6x8)
2.7V ~ 3.6V
Non-Volatile
RFQ
AT27LV256A-70RC
Microchip Technology
IC EPROM 256KBIT PARALLEL 28SOIC
Dalam stok8850 pcs
AT27LV256A-70RC.pdf
256Kbit
-
70 ns
EPROM
-
Parallel
AT27LV256
32K x 8
Tube
EPROM - OTP
-
0°C ~ 70°C (TC)
Surface Mount
28-SOIC (0.342', 8.69mm Width)
28-SOIC
3V ~ 3.6V, 4.5V ~ 5.5V
Non-Volatile
RFQ
CY62157H30-45BVXIT
Infineon Technologies
IC SRAM 8MBIT PARALLEL 48VFBGA
Dalam stok11070 pcs
CY62157H30-45BVXIT.pdf
8Mbit
-
45 ns
SRAM
45ns
Parallel
CY62157
512K x 16
Tape & Reel (TR)
SRAM - Asynchronous
MoBL®
-40°C ~ 85°C (TA)
Surface Mount
48-VFBGA
48-VFBGA (6x8)
2.2V ~ 3.6V
Volatile
RFQ
W19B320ATB7H
Winbond Electronics
IC FLASH 32MBIT PARALLEL 48TFBGA
Dalam stok9297 pcs
W19B320ATB7H.pdf
32Mbit
-
70 ns
FLASH
70ns
Parallel
W19B320
4M x 8, 2M x 16
Tray
FLASH
-
-20°C ~ 85°C (TA)
Surface Mount
48-TFBGA
48-TFBGA (6x8)
2.7V ~ 3.6V
Non-Volatile
RFQ
AT45DQ161-SSHF2B-T
Adesto Technologies
IC FLASH 16MBIT SPI/QUAD 8SOIC
Dalam stok11581 pcs
AT45DQ161-SSHF2B-T.pdf
16Mbit
85 MHz
-
FLASH
8µs, 6ms
SPI - Quad I/O
AT45DQ161
512 Bytes x 4096 pages
Tape & Reel (TR)
FLASH
-
-40°C ~ 85°C (TC)
Surface Mount
8-SOIC (0.154', 3.90mm Width)
8-SOIC
2.3V ~ 3.6V
Non-Volatile
RFQ
IS63LV1024L-10T
ISSI, Integrated Silicon Solution Inc
IC SRAM 1MBIT PARALLEL 32TSOP II
Dalam stok13590 pcs
IS63LV1024L-10T.pdf
1Mbit
-
10 ns
SRAM
10ns
Parallel
IS63LV1024
128K x 8
Tray
SRAM - Asynchronous
-
0°C ~ 70°C (TA)
Surface Mount
32-SOIC (0.400", 10.16mm Width)
32-TSOP II
3V ~ 3.6V
Volatile
RFQ
M25P20-VMN3PB
Micron Technology Inc.
IC FLASH 2MBIT SPI 75MHZ 8SO
Dalam stok4650 pcs
M25P20-VMN3PB.pdf
2Mbit
75 MHz
-
FLASH
15ms, 5ms
SPI
M25P20
256K x 8
Tube
FLASH - NOR
-
-40°C ~ 125°C (TA)
Surface Mount
8-SOIC (0.154", 3.90mm Width)
8-SO
2.3V ~ 3.6V
Non-Volatile
RFQ
CYDMX128A16-65BVXIKB
Cypress Semiconductor Corp
IC SRAM 128KBIT PAR 100VFBGA
Dalam stok39246 pcs
128Kbit
-
65 ns
SRAM
65ns
Parallel
CYDMX
8K x 16
Bulk
SRAM - Dual Port, Asynchronous
-
-40°C ~ 85°C (TA)
Surface Mount
100-VFBGA
100-VFBGA (6x6)
1.7V ~ 1.9V, 2.4V ~ 2.6V, 2.7V ~ 3.3V
Volatile
RFQ
71V3559S85PF
IDT, Integrated Device Technology Inc
IC SRAM 4.5MBIT PARALLEL 100TQFP
Dalam stok38909 pcs
4.5Mbit
-
8.5 ns
SRAM
-
Parallel
71V3559
256K x 18
Bulk
SRAM - Synchronous, SDR (ZBT)
-
0°C ~ 70°C (TA)
Surface Mount
100-LQFP
100-TQFP (14x14)
3.135V ~ 3.465V
Volatile
RFQ
AT25DF041B-SSHN-B
Adesto Technologies
IC FLASH 4MBIT SPI 104MHZ 8SOIC
Dalam stok63310 pcs
AT25DF041B-SSHN-B.pdf
4Mbit
104 MHz
-
FLASH
8µs, 2.5ms
SPI
AT25DF041
512K x 8
Tube
FLASH
-
-40°C ~ 85°C (TC)
Surface Mount
8-SOIC (0.154", 3.90mm Width)
8-SOIC
1.65V ~ 3.6V
Non-Volatile
RFQ
AT24C1024W-10SU-2.7
Microchip Technology
IC EEPROM 1MBIT I2C 1MHZ 8SOIC
Dalam stok12200 pcs
AT24C1024W-10SU-2.7.pdf
1Mbit
1 MHz
550 ns
EEPROM
10ms
I²C
AT24C1024
128K x 8
Tube
EEPROM
-
-40°C ~ 85°C (TA)
Surface Mount
8-SOIC (0.209', 5.30mm Width)
8-SOIC
2.7V ~ 5.5V
Non-Volatile
RFQ
W25Q256FVBJQ
Winbond Electronics
IC FLASH 256MBIT SPI 24TFBGA
Dalam stok14701 pcs
W25Q256FVBJQ.pdf
256Mbit
104 MHz
-
FLASH
50µs, 3ms
SPI - Quad I/O, QPI
W25Q256
32M x 8
Tube
FLASH - NOR
SpiFlash®
-40°C ~ 105°C (TA)
Surface Mount
24-TBGA
24-TFBGA (6x8)
2.7V ~ 3.6V
Non-Volatile
RFQ
CY7C188-20VC
Infineon Technologies
IC SRAM 288KBIT PARALLEL 32SOJ
Dalam stok4680 pcs
CY7C188-20VC.pdf
288Kbit
-
20 ns
SRAM
20ns
Parallel
CY7C188
32K x 9
Tube
SRAM - Asynchronous
-
0°C ~ 70°C (TA)
Surface Mount
32-BSOJ (0.300", 7.62mm Width)
32-SOJ
4.5V ~ 5.5V
Volatile
RFQ
CY14B104N-BA25XC
Infineon Technologies
IC NVSRAM 4MBIT PARALLEL 48FBGA
Dalam stok9985 pcs
CY14B104N-BA25XC.pdf
4Mbit
-
25 ns
NVSRAM
25ns
Parallel
CY14B104
256K x 16
Tube
NVSRAM (Non-Volatile SRAM)
-
0°C ~ 70°C (TA)
Surface Mount
48-TFBGA
48-FBGA (6x10)
2.7V ~ 3.6V
Non-Volatile
RFQ
AT29C257-20JC
Microchip Technology
IC FLASH 256KBIT PARALLEL 32PLCC
Dalam stok4340 pcs
AT29C257-20JC.pdf
256Kbit
-
200 ns
FLASH
10ms
Parallel
AT29C257
32K x 8
Tube
FLASH
-
0°C ~ 70°C (TC)
Surface Mount
32-LCC (J-Lead)
32-PLCC (13.97x11.43)
4.5V ~ 5.5V
Non-Volatile
RFQ
S29CD032J0MQFM013
Infineon Technologies
IC FLASH 32MBIT PAR 56MHZ 80PQFP
Dalam stok12407 pcs
S29CD032J0MQFM013.pdf
32Mbit
56 MHz
54 ns
FLASH
60ns
Parallel
S29CD032
1M x 32
Tape & Reel (TR)
FLASH - NOR
CD-J
-40°C ~ 125°C (TA)
Surface Mount
80-BQFP
80-PQFP (14x20)
1.65V ~ 2.75V
Non-Volatile
RFQ
CY7C1426KV18-300BZC
Infineon Technologies
IC SRAM 36MBIT PARALLEL 165FBGA
Dalam stok6960 pcs
CY7C1426KV18-300BZC.pdf
36Mbit
300 MHz
-
SRAM
-
Parallel
CY7C1426
4M x 9
Tray
SRAM - Synchronous, QDR II
-
0°C ~ 70°C (TA)
Surface Mount
165-LBGA
165-FBGA (13x15)
1.7V ~ 1.9V
Volatile
RFQ
AT24C16AY1-10YI-1.8
Microchip Technology
IC EEPROM 16KBIT I2C 400KHZ 8MAP
Dalam stok12582 pcs
AT24C16AY1-10YI-1.8.pdf
16Kbit
400 kHz
4.5 µs
EEPROM
5ms
I²C
AT24C16
2K x 8
Tube
EEPROM
-
-40°C ~ 85°C (TA)
Surface Mount
8-VDFN Exposed Pad
8-MAP (3x4.9)
1.8V ~ 5.5V
Non-Volatile
RFQ
IDT70P3517S233RMI
Renesas Electronics America Inc
IC SRAM 9MBIT PAR 576FCBGA
Dalam stok5534 pcs
IDT70P3517S233RMI.pdf
9Mbit
233 MHz
7.2 ns
SRAM
-
Parallel
IDT70P3517
256K x 36
Tray
SRAM - Dual Port, Synchronous QDR II
-
-40°C ~ 85°C (TA)
Surface Mount
576-BBGA, FCBGA
576-FCBGA (25x25)
1.7V ~ 1.9V
Volatile
RFQ
CY7C1357C-133AXCT
Infineon Technologies
IC SRAM 9MBIT PARALLEL 100TQFP
Dalam stok36337 pcs
CY7C1357C-133AXCT.pdf
9Mbit
133 MHz
6.5 ns
SRAM
-
Parallel
CY7C1357
512K x 18
Tape & Reel (TR)
SRAM - Synchronous, SDR
NoBL™
0°C ~ 70°C (TA)
Surface Mount
100-LQFP
100-TQFP (14x20)
3.135V ~ 3.6V
Volatile
RFQ
W25Q32JVSFIM TR
Winbond Electronics
IC FLASH 32MBIT SPI/QUAD 16SOIC
Dalam stok9168 pcs
W25Q32JVSFIM TR.pdf
32Mbit
133 MHz
6 ns
FLASH
3ms
SPI - Quad I/O, QPI, DTR
W25Q32
4M x 8
Tape & Reel (TR)
FLASH - NOR
SpiFlash®
-40°C ~ 85°C (TA)
Surface Mount
16-SOIC (0.295", 7.50mm Width)
16-SOIC
2.7V ~ 3.6V
Non-Volatile
RFQ
CY7C1318KV18-250BZI
Infineon Technologies
IC SRAM 18MBIT PARALLEL 165FBGA
Dalam stok32885 pcs
CY7C1318KV18-250BZI.pdf
18Mbit
250 MHz
-
SRAM
-
Parallel
CY7C1318
1M x 18
Tray
SRAM - Synchronous, DDR II
-
-40°C ~ 85°C (TA)
Surface Mount
165-LBGA
165-FBGA (13x15)
1.7V ~ 1.9V
Volatile
RFQ
93C46AT-I/SN
Microchip Technology
IC EEPROM 1KBIT MICROWIRE 8SOIC
Dalam stok41116 pcs
93C46AT-I/SN.pdf
1Kbit
2 MHz
-
EEPROM
2ms
Microwire
93C46A
128 x 8
Tape & Reel (TR)
EEPROM
-
-40°C ~ 85°C (TA)
Surface Mount
8-SOIC (0.154', 3.90mm Width)
8-SOIC
4.5V ~ 5.5V
Non-Volatile
RFQ
24AA01/SN
Microchip Technology
IC EEPROM 1KBIT I2C 400KHZ 8SOIC
Dalam stok94300 pcs
24AA01/SN.pdf
1Kbit
400 kHz
3500 ns
EEPROM
5ms
I²C
24AA01
128 x 8
Tube
EEPROM
-
0°C ~ 70°C (TA)
Surface Mount
8-SOIC (0.154", 3.90mm Width)
8-SOIC
1.7V ~ 5.5V
Non-Volatile
RFQ
CG8164AAT
Infineon Technologies
IC CAPSENSE EXPRESS
Dalam stok6510 pcs
CG8164AAT.pdf
-
-
-
-
-
-
-
-
Bulk
-
-
-
-
-
-
-
-
RFQ
THGBMHG9C8LBAW8
Kioxia America, Inc.
IC FLASH MEM MMC 153FBGA
Dalam stok10340 pcs
THGBMHG9C8LBAW8.pdf
-
-
-
-
-
-
THGBMHG
-
Tray
-
-
-
Surface Mount
-
153-TFBGA (11.5x13)
-
-
RFQ
MT46H16M32LFCX-5 IT:B TR
Micron Technology Inc.
IC DRAM 512MBIT PAR 90VFBGA
Dalam stok12103 pcs
MT46H16M32LFCX-5 IT:B TR.pdf
512Mbit
200 MHz
5 ns
DRAM
15ns
Parallel
MT46H16M32
16M x 32
Tape & Reel (TR)
SDRAM - Mobile LPDDR
-
-40°C ~ 85°C (TA)
Surface Mount
90-VFBGA
90-VFBGA (9x13)
1.7V ~ 1.95V
Volatile
RFQ
7009S15PF
Renesas Electronics America Inc
IC RAM
Dalam stok15942 pcs
-
-
-
-
-
-
-
-
Tray
-
-
-
-
-
-
-
-
RFQ
IS62WV5128EBLL-45QLI-TR
ISSI, Integrated Silicon Solution Inc
IC SRAM 4MBIT PARALLEL 32SOP
Dalam stok32117 pcs
IS62WV5128EBLL-45QLI-TR.pdf
4Mbit
-
45 ns
SRAM
45ns
Parallel
IS62WV5128
512K x 8
Tape & Reel (TR)
SRAM - Asynchronous
-
-40°C ~ 85°C (TA)
Surface Mount
32-SOIC (0.445", 11.30mm Width)
32-SOP
2.2V ~ 3.6V
Volatile
RFQ
P18450-B21-C
ProLabs
HP P18450-B21 Compatible Factory
Dalam stok46181 pcs
-
-
-
-
-
-
-
-
Retail Package
-
*
-
-
-
-
-
-
RFQ
IS25WJ032F-JBLE
ISSI, Integrated Silicon Solution Inc
IC FLASH 32MBIT SPI/QUAD 8SOIC
Dalam stok40958 pcs
IS25WJ032F-JBLE.pdf
32Mbit
133 MHz
6 ns
FLASH
1.6ms
SPI - Quad I/O, QPI, DTR
IS25WJ032F
4M x 8
Tube
FLASH - NOR
-
-40°C ~ 105°C (TA)
Surface Mount
8-SOIC (0.209", 5.30mm Width)
8-SOIC
1.65V ~ 1.95V
Non-Volatile
RFQ
5962-3829410MZA
Renesas Electronics America Inc
IC SRAM 64KBIT PARALLEL 28CDIP
Dalam stok47962 pcs
5962-3829410MZA.pdf
64Kbit
-
45 ns
SRAM
45ns
Parallel
5962-3829410
8K x 8
Tube
SRAM - Synchronous
-
-55°C ~ 125°C (TA)
Through Hole
28-CDIP (0.300", 7.62mm)
28-CDIP
4.5V ~ 5.5V
Volatile
RFQ
5962-8700218ZA
Renesas Electronics America Inc
IC RAM 2KX8 16K DUAL PORT SB48
Dalam stok12559 pcs
16Kbit
-
35 ns
SRAM
35ns
Parallel
-
2K x 8
Tube
SRAM - Dual Port, Asynchronous
-
-55°C ~ 125°C (TA)
Through Hole
48-DIP (0.600", 15.24mm)
48-SIDE BRAZED
4.5V ~ 5.5V
Volatile
RFQ
70V24S55PFI8
Renesas Electronics America Inc
IC SRAM 64KBIT PARALLEL 100TQFP
Dalam stok6345 pcs
70V24S55PFI8.pdf
64Kbit
-
55 ns
SRAM
55ns
Parallel
70V24S
4K x 16
Tape & Reel (TR)
SRAM - Dual Port, Asynchronous
-
-40°C ~ 85°C (TA)
Surface Mount
100-LQFP
100-TQFP (14x14)
3V ~ 3.6V
Volatile
RFQ
GD25LE32ESIGR
GigaDevice Semiconductor (HK) Limited
32MBIT, 1.8V, SOP8 208MIL, INDUS
Dalam stok46889 pcs
GD25LE32ESIGR.pdf
32Mbit
133 MHz
6 ns
FLASH
60µs, 2.4ms
SPI - Quad I/O, QPI
-
4M x 8
Tape & Reel (TR)
FLASH - NOR (SLC)
-
-40°C ~ 85°C (TA)
Surface Mount
8-SOIC (0.209", 5.30mm Width)
8-SOP
1.65V ~ 2V
Non-Volatile
RFQ