62 продукты
ОБРАЗ ЧАСТЬ №. ЦЕНА КОЛИЧЕСТВО АКЦИИ ПРОИЗВОДСТВО ОПИСАНИЕ Series Part Status Packaging Operating Temperature Package / Case Supplier Device Package Core Processor Speed Ethernet USB Voltage - I/O Number of Cores/Bus Width Co-Processors/DSP RAM Controllers Graphics Acceleration Display & Interface Controllers SATA Security Features
MCIMX6D5EYM10AE
За единицу
$44.76
RFQ
1,624
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6D ENHANCED 624FCBGA i.MX6D Active Tray -20°C ~ 105°C (TJ) 624-LFBGA, FCBGA 624-FCPBGA (21x21) ARM® Cortex®-A9 1.0GHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD SATA 3Gbps (1) ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U5DVM10AB
За единицу
$32.81
RFQ
3,958
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 1.0GHZ 624MAPBGA i.MX6DL Not For New Designs Tray 0°C ~ 95°C (TJ) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 1.0GHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6D7CVT08AD
За единицу
$47.86
RFQ
952
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6D 800MHZ 624FCBGA i.MX6D Active Tray -40°C ~ 105°C (TA) 624-FBGA, FCBGA 624-FCBGA (21x21) ARM® Cortex®-A9 800MHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD SATA 3Gbps (1) ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6D5EYM10AC
За единицу
$45.17
RFQ
3,427
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6D 1.0GHZ 624FCBGA i.MX6D Not For New Designs Tray -20°C ~ 105°C (TJ) 624-FBGA, FCBGA 624-FCBGA (21x21) ARM® Cortex®-A9 1.0GHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD SATA 3Gbps (1) ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6D5EYM10AD
За единицу
$45.17
RFQ
1,032
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6D 1.0GHZ 624FCBGA i.MX6D Active Tray -20°C ~ 105°C (TJ) 624-FBGA, FCBGA 624-FCBGA (21x21) ARM® Cortex®-A9 1.0GHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD SATA 3Gbps (1) ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U7CVM08AC
За единицу
$34.99
RFQ
2,605
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 800MHZ 624MAPBGA i.MX6DL Active Tray -40°C ~ 105°C (TA) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 800MHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U5EVM10AC
За единицу
$33.48
RFQ
2,077
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 1.0GHZ 624MAPBGA i.MX6DL Active Tray -20°C ~ 105°C (TJ) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 1.0GHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U5EVM10AB
За единицу
$33.48
RFQ
2,638
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 1.0GHZ 624MAPBGA i.MX6DL Not For New Designs Tray -20°C ~ 105°C (TJ) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 1.0GHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U5DVM10AC
За единицу
$32.81
RFQ
3,914
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 1.0GHZ 624MAPBGA i.MX6DL Active Tray 0°C ~ 95°C (TJ) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 1.0GHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
Default Photo
За единицу
$38.58
RFQ
1,919
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. I.MX 6 SERIES 32-BIT MPU DUAL A i.MX6D Active - -20°C ~ 105°C (TJ) - - ARM® Cortex®-A9 800MHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD SATA 3Gbps (1) ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6D4AVT08ADR
За единицу
$38.57
RFQ
3,992
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6D 852MHZ 624FCBGA i.MX6D Active Tape & Reel (TR) -40°C ~ 125°C (TJ) 624-FBGA, FCBGA 624-FCBGA (21x21) ARM® Cortex®-A9 852MHZ 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD SATA 3Gbps (1) ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6D4AVT08ACR
За единицу
$38.57
RFQ
1,032
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6D 852MHZ 624FCBGA i.MX6D Not For New Designs Tape & Reel (TR) -40°C ~ 125°C (TJ) 624-FBGA, FCBGA 624-FCBGA (21x21) ARM® Cortex®-A9 852MHZ 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD SATA 3Gbps (1) ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6D5EYM10AER
За единицу
$36.08
RFQ
1,190
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6D ENHANCED 624FCBGA i.MX6D Active Tape & Reel (TR) -20°C ~ 105°C (TJ) 624-LFBGA, FCBGA 624-FCPBGA (21x21) ARM® Cortex®-A9 1.0GHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD SATA 3Gbps (1) ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
Default Photo
За единицу
$35.98
RFQ
1,222
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. I.MX 6 SERIES 64-BIT MPU DUAL A i.MX6DL Active - -40°C ~ 125°C (TJ) - - ARM® Cortex®-A9 1GHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
Default Photo
За единицу
$34.41
RFQ
2,435
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. I.MX 6 SERIES 64-BIT MPU DUAL A i.MX6DL Active - -40°C ~ 125°C (TJ) - - ARM® Cortex®-A9 1GHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
Default Photo
За единицу
$33.62
RFQ
3,633
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. I.MX6 DUALLITE R PERFEN i.MX6DL Active - -40°C ~ 105°C (TA) - - ARM® Cortex®-A9 800MHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6D5EYM10ADR
За единицу
$33.56
RFQ
3,239
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6D 1.0GHZ 624FCBGA i.MX6D Active Tape & Reel (TR) -20°C ~ 105°C (TJ) 624-FBGA, FCBGA 624-FCBGA (21x21) ARM® Cortex®-A9 1.0GHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD SATA 3Gbps (1) ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6D5EYM10ACR
За единицу
$33.56
RFQ
2,635
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6D 1.0GHZ 624FCBGA i.MX6D Not For New Designs Tape & Reel (TR) -20°C ~ 105°C (TJ) 624-FBGA, FCBGA 624-FCBGA (21x21) ARM® Cortex®-A9 1.0GHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD SATA 3Gbps (1) ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U6AVM08AC
За единицу
$32.64
RFQ
3,612
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 800MHZ 624MAPBGA i.MX6DL Active Tray -40°C ~ 125°C (TJ) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 800MHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U4AVM08AC
За единицу
$31.27
RFQ
621
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 800MHZ 624MAPBGA i.MX6DL Active Tray -40°C ~ 125°C (TJ) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 800MHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U4AVM08AB
За единицу
$31.27
RFQ
3,748
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 800MHZ 624MAPBGA i.MX6DL Not For New Designs Tray -40°C ~ 125°C (TJ) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 800MHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U1AVM08AC
За единицу
$29.92
RFQ
3,561
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 800MHZ 624MAPBGA i.MX6DL Active Tray -40°C ~ 125°C (TJ) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 800MHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U1AVM08AB
За единицу
$29.92
RFQ
2,569
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 800MHZ 624MAPBGA i.MX6DL Not For New Designs Tray -40°C ~ 125°C (TJ) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 800MHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U6AVM08AB
За единицу
$28.56
RFQ
2,458
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 800MHZ 624MAPBGA i.MX6DL Not For New Designs Tray -40°C ~ 125°C (TJ) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 800MHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U7CVM08AB
За единицу
$27.36
RFQ
1,020
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 800MHZ 624MAPBGA i.MX6DL Not For New Designs Tray -40°C ~ 105°C (TA) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 800MHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U6AVM08ACR
За единицу
$27.13
RFQ
3,888
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 800MHZ 624MAPBGA i.MX6DL Active Tape & Reel (TR) -40°C ~ 125°C (TJ) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 800MHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U6AVM08ABR
За единицу
$27.13
RFQ
2,927
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 800MHZ 624MAPBGA i.MX6DL Not For New Designs Tape & Reel (TR) -40°C ~ 125°C (TJ) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 800MHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U4AVM08ACR
За единицу
$25.99
RFQ
2,726
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 800MHZ 624MAPBGA i.MX6DL Active Tape & Reel (TR) -40°C ~ 125°C (TJ) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 800MHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U4AVM08ABR
За единицу
$25.99
RFQ
3,818
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 800MHZ 624MAPBGA i.MX6DL Not For New Designs Tape & Reel (TR) -40°C ~ 125°C (TJ) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 800MHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection
MCIMX6U8DVM10AB
За единицу
$25.87
RFQ
2,447
Сегодня корабль + бесплатная ночная доставка
NXP USA Inc. IC MPU I.MX6DL 1.0GHZ 624MAPBGA i.MX6DL Not For New Designs Tray 0°C ~ 95°C (TJ) 624-LFBGA 624-MAPBGA (21x21) ARM® Cortex®-A9 1.0GHz 10/100/1000 Mbps (1) USB 2.0 + PHY (4) 1.8V, 2.5V, 2.8V, 3.3V 2 Core, 32-Bit Multimedia; NEON™ SIMD LPDDR2, LVDDR3, DDR3 Yes Keypad, LCD - ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC, Tamper Detection