AT89C51RD2-SLSUM Price & Stock

Manufacturer
Integrated Circuits (ICs) > Embedded - Microcontrollers
IC MCU 8BIT 64KB FLASH 44PLCC
Specifications
Series 89C
Part Status Active
Core Processor 80C51
Core Size 8-Bit
Speed 60MHz
Connectivity SPI, UART/USART
Peripherals POR, PWM, WDT
Number of I/O 34
Program Memory Size 64KB (64K x 8)
Program Memory Type FLASH
RAM Size 2K x 8
Voltage - Supply (Vcc/Vdd) 2.7 V ~ 5.5 V
Oscillator Type External
Operating Temperature -40°C ~ 85°C (TA)
Package / Case 44-LCC (J-Lead)
Supplier Device Package 44-PLCC (16.59x16.59)
Hide
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 16BIT 256KB FLASH 80TQFP 5659
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip DC:22+ 18000
Inquiry
AT89C51RD2SLSUM Atmel DC:22+ 30000
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology DC:24+ ; Original New 29194
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology MCU 8-bit AT89 80C51 CISC 64KB Flash 3.3V/5V 44-Pin PLCC Stick 2698
1:  $3.812
10:  $3.700
100:  $3.588
500:  $3.448
Buy
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Micrel / Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC ; 44-PLCC (16.59x16.59)
Embedded - Microcontrollers
Available
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC 2679
$
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Micrel / Microchip Technology AT89C51RD2-SLSUM IN STOCK 10000
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2SLSUM atmel Stock Europe - ROHS:YES - Microcontroller, 8-Bit, FLASH, 8051 CPU, 60MHz, CMOS, PQCC44 70
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Tech Purchase Online. Ship Immediately. 64KB 51Series 60MHz FLASH 34 PLCC-44 Microcontroller Units (MCUs 32
100:  $5.450
30:  $5.986
10:  $6.624
1:  $7.671
Buy
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM MICROCHIP 20+ ; DC:DIP 10000
Inquiry
AT89C51RD2-SLSUM MICROCHIP DIP ; DC:20+ 10000
Inquiry
AT89C51RD2-SLSUM MICROCHIP PLCC-44 ; DC:21+ 12000
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology 40821
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology 44-LCC (J-Lead) 40821
$
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC 573
Inquiry
AT89C51RD2-SLSUM price|Mouser
Mouser
Certificates
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM
sku #: 556-A89C51RD2SLSUM
Microchip Technology 8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V
8-bit Microcontrollers - MCU
3506 In Stock
1:  $9.01
27:  $8.27
108:  $7.49
Buy
AT89C51RD2-SLRUM
sku #: 556-A89C51RD2SLRUM
Microchip Technology 8-bit Microcontrollers - MCU C51RD2 64K FLASH 3-5.5V
8-bit Microcontrollers - MCU
236 In Stock
1:  $9.22
25:  $8.46
100:  $7.66
500:  $7.66
Buy
AT89C51RD2-SLSUM price|Newark element14
Newark element14
Certificates
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM
sku #: 25AC6160
Microchip Microchip - C51Rd2 64Kf Plcc44 3-5.5V Ind. Rohs Compliant: Yes - At89C51Rd2-Slsum |Microchip AT89C51RD2-SLSUM in stock
$232.20
Buy
AT89C51RD2-SLSUM price|Microchip USA
Microchip USA
Certificates
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology Member of ERAI, GIDEP, & ITAR | ISO 9001, ISO 2001, ISO 14001 & AS9120 Certified ; Tray 100
1:  25.227999999999998
10:  25.227999999999998
100:  25.227999999999998
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology 8483
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC 736
Buy
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC 683
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC 12722
8:  $5.511
16:  $5.314
25:  $5.117
34:  $4.921
45:  $4.724
Buy
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC 1806
Inquiry
AT89C51RD2-SLSUM price|Ample Chip
Ample Chip
Certificates
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Roving Networks / Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC 18895
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip 8C51 series Microcontroller IC 8-Bit 6MHz 64KB (64K x 8) FLASH 44-PLCC (16.6x16.6) 10226
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip MCU (MCU/MPU/SOC)
MCU (MCU/MPU/SOC)
6251
4.121
Buy
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip 80C51 89C IC 8 60MHz 64KB(64K x 8) 44-PLCC(16.6x16.6) In-Stock
$RFQ
Inquiry
AT89C51RD2-SLSUM price|Chip Source Co.
Chip Source Co.
Certificates
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC 138465
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC
Embedded - Microcontrollers
19407
Buy
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology Available, Contact us 2322
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC
Integrated Circuits (ICs)>Embedded - Microcontrollers
51905
8:  $5.894
17:  $5.514
26:  $5.324
37:  $4.944
48:  $4.753
Buy
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC 3246
$8.05
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Atmel 80C51 89C Microcontroller IC 8-Bit 60MHz 64KB (64K x 8) FLASH 44-PLCC (16.59x16.59) 1777
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology DC:Active ; - 3329
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC
Embedded - Microcontrollers
In-Stock
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM
sku #: AT89C51RD2-SLSUM
Microchip 480
Inquiry
AT89C51RD2-SLSUM price|Axis Part Limited
Axis Part Limited
Certificates
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology New Original,COC,ISO9001 8500
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC 2320
1:  $6.703
100:  $6.271
1000:  $5.911
10000:  $5.406
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Roving Networks / Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC 10000
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC 1983
$4.17
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology 18233
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM MICROCHIP PLCC ; DC:20+ 6081
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip IC MCU 8BIT 64KB FLASH 44PLCC 42219
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM ATMEL/MICROC 8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V 10
Buy
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology 35000
$9.68
Inquiry
AT89C51RD2-SLSUM price|Depu Electronics
Depu Electronics
Certificates
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC 11900
$9.010000
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology Brand new and original/respond online to quote. 5348
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC ; DC:21+ ; 44-PLCC (16.6x16.6) 111
Inquiry
AT89C51RD2-SLSUM Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC ; DC:23+ 11900
Inquiry
AT89C51RD2-SLSUM ATMEL DC:23+ ; PLCC 141
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM ATMEL IN STOCK Immediate delivery 3152
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip 62
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2SLSUM Atmel OEM/CM QUOTES ONLY | NO BROKERS 12699
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM ATMEL IN STOCK 3152
Inquiry
AT89C51RD2-SLSUM price|Ariat Technology
Ariat Technology
Certificates
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Micrel / Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC
New Original Stock.
2000
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip IC MCU 8BIT 64KB FLASH 44PLCC 2000
1:  $24.580
10:  $24.580
100:  $24.580
1000:  $24.580
10000:  $24.580
Inquiry
AT89C51RD2SLS-UM 500
1:  $8.589
10:  $8.589
100:  $8.589
1000:  $8.589
10000:  $8.589
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology 80C51 89C Microcontroller IC 8-Bit 60MHz 64KB (64K x 8) FLASH 44-PLCC (16.6x16.6) 707
Inquiry
AT89C51RD2SLSUM Atmel Brand new original 7625
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM MICROCHIP PLCC44 10000
Inquiry
AT89C51RD2-SLSUM ATMEL 4298
Inquiry
AT89C51RD2-SLSUM price|Chip 1 Exchange
Chip 1 Exchange
Certificates
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM MCHIP AVAILABLE 5553
Inquiry
AT89C51RD2-SLSUM-PROG MICR AVAILABLE 313
Inquiry
AT89C51RD2-SLSUM price|Win Source
Win Source
Certificates
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Atmel IC MCU 8BIT 64KB FLASH 44PLCC 9626
8:  $7.708
Buy
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Micrel / Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC
Embedded - Microcontrollers
23603
10:  $10.43
100:  $8.82
1000:  $8.82
2500:  $8.82
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM MICROCHIP Integrated Circuit ; DC:21+ ; PLCC44 ; 100% original goods
electronical components integrated circuit
4350
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM MICROCHIP OEM/CM In stock 8000
Inquiry
AT89C51RD2-SLSUM IC ATMEL OEM/CM In stock 864
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM ATMEL IN STOCK Immediate delivery 2552
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM ATMEL PLCC-44 ; DC:1418+ 10
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM IC ATMEL Original stock,24-hour delivery 27910
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM D/C11+ ATMEL PLCC44 ; DC:21+ 4050
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Micrel / Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC 8108
Inquiry
AT89C51RD2-SLSUM IC Atmel (Microchip Technology) The parts are in stock 28946
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM ATMEL/°®ÌØÃ·¶û 156
Inquiry
AT89C51RD2-SLSUM ´Æ´¢IC ATMEL/°®ÌØÃ·¶û 500
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM ATMEL in stock Immediately 632
Inquiry
AT89C51RD2-SLSUM IC ATMEL in stock Immediately 1412
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology / Atmel 8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V 5535
$7.45
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology In Stock
Inquiry
AT89C51RD2-SLSUM Atmel In Stock
Inquiry
AT89C51RD2-SLSUM ATMEL In Stock
Inquiry
AT89C51RD2SLSUM In Stock
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Micrel / Microchip Technology IC MCU 8BIT 64KB FLASH 44PLCC 2000
1:  $24.550
100:  $24.059
1000:  $23.578
Buy
AT89C51RD2SLS-UM original Standard Package 1200
1:  $8.597
100:  $8.425
1000:  $8.257
Buy
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM ATMEL PLCC ; DC:2022+ 1992
Inquiry
AT89C51RD2-SLSUM MICROCHIP PLCC-44 ; DC:2023+ 3000
Inquiry
AT89C51RD2-SLSUM CMD SOP20 ; DC:2023+ 1993
Inquiry
AT89C51RD2SLSUM ATMEL 2
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM ATMEL 5373
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM DC:17+ 5030
Inquiry
AT89C51RD2-SLSUM price| Lvy Electronics
Lvy Electronics
Certificates
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM 2000
Inquiry
AT89C51RD2-SLSUM Microchip Technology 2000
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM MICROCHIP Check alternative solution with competitive price 29160
$9.007420003
Buy
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology / Atmel 8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V in stock
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip We exclusively sell to OEMs, ODMs and CMs/EMS. Thank you. 5000
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM ATMEL New and original ; DC:1442+ 200
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip IC MCU 8BIT 64KB FLASH 44PLCC 59
Buy
Part # Manufacturer Description Stock Price Buy
AT89C51RD2SLSUM
sku #: AT89C51RD2SLSUM
NEW 2023 STOCK! BEST PRIC 33554
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM ATMEL In stock,ready for shipping ; PLCC 3315
Inquiry
AT89C51RD2-SLSUM PLCC SZ Warehouse ,In stock,ready for shipping 2550
Inquiry
Part # Manufacturer Description Stock Price Buy
AT89C51RD2SLSUM Atmel OEM/CM ONLY 859
Inquiry
AT89C51RD2-SLSUM price|Farnell element14
Farnell element14
Certificates
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM
sku #: 2318813
Microchip Technology Microchip Technology Technology - Mcu, 8Bit, 8051, 60Mhz, Plcc-44 - At89C51Rd2-Slsum |Microchip Technology Technology AT89C51RD2-SLSUM out of stock
£8.74
Buy
AT89C51RD2-SLSUM price|OnlineComponents
OnlineComponents
Certificates
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM Microchip Technology MCU - 8-bit 80C51 CISC - 64KB Flash - 3.3V/5V - 44-Pin PLCC - Tube 1774
1:  $9.0900
6:  $7.6400
28:  $7.4700
55:  $7.3100
109:  $7.2700
271:  $7.2300
514:  $7.2000
Buy
Part # Manufacturer Description Stock Price Buy
AT89C51RD2-SLSUM MICROCHIP SMDDIP ; DC:2018/17 43323
Inquiry
AT89C51RD2-SLSUM SL840 ATMEL DC:15+ 31944
Inquiry
See Also:
AT89C51RE2-SLSUM AT89C51RD2-SLSIM AT89C51RD2-SLSCM AT89C51RB2-SLSUM AT89C51RD2SLSUM AT89C51ED2-SLSUM AT89C51RC2-SLSUM AT89C51ID2-SLSUM AT89C51RD2-SLRUM AT89C51ED2-SLRUM AT89C51ED2-SLSIM AT89C51RC2-SLSCM AT89C51RD2-SLRIM AT89C51ED2-SMSUM AT89C51RB2SLSUM AT89C51RC2-SLSUL AT89C51RC2SLSUM AT89C51RB2-SLRUM AT89C51AC2-SLSUM AT89C51RE2-SLRUM AT89C51RD2-RLTUM AT89C51RD2-RLRUM AT89C51IC2-SLSUM AT89C51RC2-SLSIM AT89C51ID2-SLRUM AT89C51RC2-SLRUM AT89C51RB2-SLSIM AT89C51RB2-SLSUL AT89C51RB2-3CSUM AT89C51ED2-SMRUM AT89C51IC2-SLSUL AT89C51RB2-SLRIM AT89C51RC2-SLRUL AT89C51RC2-SLRIM AT89C51RD2-SMSCL AT89C51ID2-SLRIM AT89C51RD2-SLSUM IC AT89C51RB2-RLRUM AT89C51RB2-SLSIL AT89C51ID2-RLRUM AT89C51ED2-3CSUM AT89C51ED2-RLRUM AT89C51RC2-3CSUM AT89C51RD2T-RLTUM AT89C51RD2-3CSIM AT89C51RD2-UM AT89C51RD2T-RLRUM AT89C51RB2-SLRUL AT89C51RC2-SLSCV More » AT89C51AC3-SLSUM AT89C51ED2-RLTUM AT89C51AC2SLSUM AT89C51IC2-SLRUM AT89C51IC2-SLSCM AT89C51RB2-RLTUM AT89C51RD2-RLRIM AT89C51AC2-SLSIM AT89C51RC2-RLRUM AT89C51ID2-RLTUM AT89C51ED2-SLRIM AT89C51RE2-RLTUM AT89C51RD2-RLTIM AT89C51RC2-RLTUM AT89C51RB2-RLTUL AT89C51ED2-RDTUM AT89C5122D-SISUM AT89C51RB2-SLRIL AT89C51ID2-RLTIM AT89C51IC2-RLTUM AT89C51IC2-RLRUM AT89C51RC2-UM AT89C51RC2-3CSIM AT89C51ED2-UM AT89C5131A-S3SUM AT89C51RD2-RDTIM AT89C51ED2-RLRIM AT89C51IC2-SLSIL AT89C51RC2L3-SLSCM AT89C51ED2RLTUM AT89C5115-SISUM AT89C51ED2-RDRUM AT89C51RC2-RLRIM AT89C51RB2-3CSIM AT89C51AC3-SLSIM AT89C51RE2-SLSUM IC AT89C51RC2-SLRIL AT89C51RC2-RLRUL AT89C51RD2-CL AT89C51IC2-SLRIM AT89C51RE2-UM AT89C51RD2-IM AT89C51ED2T-RLRUM AT89C51RC2-RLTUL AT89C51ED2-3CSIM AT89C51RB2-3CSUL AT89C51RC2-RLTIM AT89C51RB2-RLTCM AT89C51RB2T-RLTUM AT89C51RC2T-RLTUM AT89C51RD2UM AT89C51RB2-UM AT89C51AC2-RLTUM AT89C51RD2-CM AT89C51RB2-RLRIM AT89C51ED2-SMRIM AT89C51ID2T-RLTUM AT89C51IC2-SLRUL AT89C51RB2-RLRUL AT89C51ID2-UM AT89C51AC3-S3SUM AT89C51ED2T-RLTUM AT89C51RB2-RLTIM AT89C51ED2-RLTIM AT89C51ID2-RLRIM AT89C5RD2-UM AT89C51ID2T-RLRUM AT89C5130A-S3SUM AT89C51RC2-IM AT89C51RB2-CM