I²C-based Microcontrollers

The following devices have on-chip I²C.

Analog Devices (8051 Family)
ADE7169F16, ADE7566F16, ADE7566F8, ADE7569F16, ADuC814, ADuC816, ADuC824, ADuC832, ADuC841, ADuC842, ADuC843, ADuC845, ADuC847, ADuC848
Analog Devices (ARM7/ARM9/Cortex Family)
ADuC7019, ADuC7020, ADuC7021, ADuC7022, ADuC7024, ADuC7025, ADuC7026, ADuC7027, ADuC7128, ADuC7129
ASIX Electronics Corporation (8051 Family)
AX11001, AX11005, AX11015, AX11025
Atmel (251 Family)
T87C251G1A, T8xC251G1D, T8xC251G2D
Atmel (8051 Family)
AT89C5130A, AT89C5131, AT89C5131A, AT89C51IC2, T80C51FP1
AustriaMicroSystems (ARM7/ARM9/Cortex Family)
AS3525
Cypress Semiconductor (8051 Family)
EZ-USB (AN21XX), EZ-USB FX (CY7C646XX), EZ-USB FX1 (CY7C647XX), EZ-USB FX2 (CY7C68XXX), EZ-USB FX2LP (CY7C68XXX-X)
easyplug (8051 Family)
IPL0404
Freescale Semiconductor (ARM7/ARM9/Cortex Family)
MAC7101, MAC7104, MAC7105, MAC7106, MAC7111, MAC7112, MAC7114, MAC7115, MAC7116, MAC7121, MAC7122, MAC7124, MAC7125, MAC7126, MAC7131, MAC7134, MAC7135, MAC7136, MAC7141, MAC7142, MAC7144, MC9328MX21, MCIMX27, MCIMX27L
Handshake Solutions (8051 Family)
HT80C51
Hynix Semiconductor (8051 Family)
HMS9xC7132, HMS9xC7134
Infineon (C16x/ST10/XC16x Family)
C161CS, C161JC, C161JI, C161PI, C161RI, XC161CJ-16F, XC161CS-32F, XC164CM-16F, XC164CM-4F, XC164CM-8F, XC167CI-32F
Luminary Micro (ARM7/ARM9/Cortex Family)
LM3S102, LM3S1133, LM3S1138, LM3S1150, LM3S1162, LM3S1165, LM3S1435, LM3S1439, LM3S1512, LM3S1538, LM3S1620, LM3S1635, LM3S1637, LM3S1751, LM3S1850, LM3S1937, LM3S1958, LM3S1960, LM3S1968, LM3S2110, LM3S2139, LM3S2410, LM3S2412, LM3S2432, LM3S2533, LM3S2620, LM3S2637, LM3S2651, LM3S2730, LM3S2739, LM3S2939, LM3S2948, LM3S2950, LM3S2965, LM3S316, LM3S317, LM3S328, LM3S601, LM3S610, LM3S611, LM3S612, LM3S613, LM3S615, LM3S628, LM3S6432, LM3S6537, LM3S6610, LM3S6633, LM3S6637, LM3S6753, LM3S6938, LM3S6950, LM3S6952, LM3S6965, LM3S801, LM3S811, LM3S812, LM3S815, LM3S817, LM3S828, LM3S8530, LM3S8538, LM3S8630, LM3S8730, LM3S8733, LM3S8738, LM3S8930, LM3S8933, LM3S8938, LM3S8962, LM3S8970
MXIC (8051 Family)
MX10F201FC, MX10F202FC
Myson Technology (8051 Family)
CS6208, MTV112E, MTV112M, MTV212M32, MTV230M, MTV312M64, MTV412M
NXP (founded by Philips) (8051 Family)
80C528, 80C552, 80C554, 80C652, 83/87C524, 83/87C528, 83/87C552, 83/87C554, 83/87C652, 83/87C654, 83/87C751, 83/87C752, P80C557E4, P80C557E6, P80C557E8, P80C591, P80CE558, P80CE560, P80CL410, P80CL580, P83/P87C557E8, P83/P89C557E4, P83/P89CE558, P83C557E6, P83C591, P83CL410, P83CL580, P87C591, P87LPC760, P87LPC761, P87LPC762, P87LPC764, P87LPC767, P87LPC768, P87LPC769, P87LPC778, P89C660, P89C662, P89C664, P89C668, P89LPC920, P89LPC921, P89LPC922, P89LPC9221, P89LPC924, P89LPC925, P89LPC930, P89LPC931, P89LPC932, P89LPC932A1, P89LPC933, P89LPC934, P89LPC935, P89LPC936, P89LPC938, P89LPC952, P89V660, P89V662, P89V664, PCD6001, SAA5645HL, SAA5647HL, SAA5665HL, SAA5667HL
NXP (founded by Philips) (ARM7/ARM9/Cortex Family)
LH79524, LH79525, LPC2101, LPC2102, LPC2103, LPC2104, LPC2105, LPC2106, LPC2109, LPC2109/01, LPC2114, LPC2119, LPC2124, LPC2129, LPC2131, LPC2131/01, LPC2132, LPC2132/01, LPC2134, LPC2134/01, LPC2136, LPC2136/01, LPC2138, LPC2138/01, LPC2141, LPC2142, LPC2144, LPC2146, LPC2148, LPC2194, LPC2210, LPC2212, LPC2214, LPC2220, LPC2290, LPC2292, LPC2294, LPC2364, LPC2366, LPC2368, LPC2378, LPC2387, LPC2388, LPC2460, LPC2468, LPC2470, LPC2478, LPC2880, LPC2888, LPC3180, LPC3220, LPC3230, LPC3240, LPC3250
OKI (ARM7/ARM9/Cortex Family)
ML674001, ML674002, ML674003, ML675001, ML675002, ML675003, ML67Q4050, ML67Q4051, ML67Q4060, ML67Q4061, ML696201, ML69Q6203
Ramtron (8051 Family)
VMX51C1016, VMX51C1020, VRS51L1050, VRS51L2070, VRS51L3072, VRS51L3074, VRS51L3174
Samsung (ARM7/ARM9/Cortex Family)
S3C2410A, S3C2440A, S3C44B0X, S3C4510B, S3F4A0KR, S3F4A1HR, S3F4A2FR
Sharp (8051 Family)
LZ87010
Silicon Laboratories, Inc. (8051 Family)
C8051F000, C8051F001, C8051F002, C8051F005, C8051F006, C8051F007, C8051F010, C8051F011, C8051F012, C8051F015, C8051F016, C8051F017, C8051F018, C8051F019, C8051F020, C8051F021, C8051F022, C8051F023, C8051F040, C8051F041, C8051F042, C8051F043, C8051F044, C8051F045, C8051F046, C8051F047, C8051F060, C8051F061, C8051F062, C8051F063, C8051F064, C8051F065, C8051F066, C8051F067, C8051F120, C8051F121, C8051F122, C8051F123, C8051F124, C8051F125, C8051F126, C8051F127, C8051F130, C8051F131, C8051F132, C8051F133, C8051F300, C8051F301, C8051F302, C8051F303, C8051F304, C8051F305, C8051F310, C8051F311, C8051F312, C8051F313, C8051F314, C8051F315, C8051F316, C8051F317, C8051F320, C8051F321, C8051F330, C8051F331, C8051F332, C8051F333, C8051F334, C8051F335, C8051F336, C8051F337, C8051F338, C8051F339, C8051F340, C8051F341, C8051F342, C8051F343, C8051F344, C8051F345, C8051F346, C8051F347, C8051F350, C8051F351, C8051F352, C8051F353, C8051F920, C8051F921, C8051F930, C8051F931, C8051T610, C8051T611, C8051T612, C8051T613, C8051T614, C8051T615, C8051T616, C8051T617
SMSC (8051 Family)
KBC1100, KBC1100L, LPC47N252, LPC47N253, LPC47N350, LPC47N359
STMicroelectronics (8051 Family)
uPSD3212A, uPSD3212C, uPSD3212CV, uPSD3233B, uPSD3233BV, uPSD3234A, uPSD3234BV, uPSD3253B, uPSD3253BV, uPSD3254A, uPSD3254BV, uPSD3312D, uPSD3312DV, uPSD3333D, uPSD3333DV, uPSD3334D, uPSD3334DV, uPSD3354D, uPSD3354DV, uPSD3422E, uPSD3422EV, uPSD3433E, uPSD3433EV, uPSD3434E, uPSD3434EV, uPSD3454E, uPSD3454EV
STMicroelectronics (ARM7/ARM9/Cortex Family)
STA2051, STM32F101C6, STM32F101C8, STM32F101CB, STM32F101R6, STM32F101R8, STM32F101RB, STM32F101RC, STM32F101RD, STM32F101RE, STM32F101T6, STM32F101T8, STM32F101V8, STM32F101VB, STM32F101VC, STM32F101VD, STM32F101VE, STM32F101ZC, STM32F101ZD, STM32F101ZE, STM32F103C6, STM32F103C8, STM32F103CB, STM32F103R6, STM32F103R8, STM32F103RB, STM32F103RC, STM32F103RD, STM32F103RE, STM32F103T6, STM32F103T8, STM32F103V8, STM32F103VB, STM32F103VC, STM32F103VD, STM32F103VE, STM32F103ZC, STM32F103ZD, STM32F103ZE, STR710FZ1, STR710FZ2, STR711FR0, STR711FR1, STR711FR2, STR712FR0, STR712FR1, STR712FR2, STR715FR0, STR730FZ1, STR730FZ2, STR731FV0, STR731FV1, STR731FV2, STR735FZ1, STR735FZ2, STR736FV0, STR736FV1, STR750FL2, STR750FV0, STR750FV1, STR750FV2, STR751FR0, STR751FR1, STR751FR2, STR752FR0, STR752FR1, STR752FR2, STR755FR0, STR755FR1, STR755FR2, STR755FV0, STR755FV1, STR755FV2, STR910FAM32, STR910FAW32, STR910FAZ32, STR910FM32, STR910FW32, STR911FAM42, STR911FAM44, STR911FAM46, STR911FAM47, STR911FAW42, STR911FAW44, STR911FAW46, STR911FAW47, STR911FM42, STR911FM44, STR912FAW42, STR912FAW44, STR912FAW46, STR912FAW47, STR912FAZ42, STR912FAZ44, STR912FAZ46, STR912FAZ47, STR912FW42, STR912FW44
STMicroelectronics (C16x/ST10/XC16x Family)
ST10F271B, ST10F271E
Tekmos (8051 Family)
TK83C751, TK87C751
Teridian Semiconductor Corp. (8051 Family)
73S1215F
Texas Instruments (8051 Family)
MSC1200Y2, MSC1200Y3, MSC1201Y2, MSC1201Y3, MSC1202Y2, MSC1202Y3, MSC1211Y2, MSC1211Y3, MSC1211Y4, MSC1211Y5, MSC1213Y2, MSC1213Y3, MSC1213Y4, MSC1213Y5, TAS1020, TUSB2136, TUSB3200, TUSB3210, TUSB3410, TUSB5052, TUSB6250
Texas Instruments (ARM7/ARM9/Cortex Family)
TMS470R1A288, TMS470R1A384, TMS470R1B1M
Winbond (8051 Family)
W78E374B
Winbond (ARM7/ARM9/Cortex Family)
W90N745, W90P710

Devices Found = 565.