PB450 Sockets

U Locations (Chips & Sockets)

U

Part

Description

U2 75188 RS-232 Driver
U3 1489 RS-232 Receiver
U4 1489 RS-232 Receiver
U5 74LS273 Octal-D flop-flop with clear
U6 74LS244 Octal Tri-state buffer
U7 74LS126 Quad Tri-state buffer
U8 PAL16L8F25S 16l8 pal,25ns
U9 N82C42PE 8242 (Mask) "green" KB controller
U10 CL-5428 Graphics Controller
U11 NE558 Quad Timer
U12 74LS125 Quadruple Tri-state buffer
U13 74LS125 Quadruple Tri-state buffer
U14 FDC37C665QF Floppy Controller
U15 28F001BX-T150 1 Mbit Flash EEPROM
U16 CACHE SOCKET Cache Socket
U17 74F245 Octal Tristate Transceiver
U18 28F002BXTSOP-80 Flash Memory, 2Mbit w/HIGH boot Block, 80Ns
U19 CACHE SOCKET (Open -- configuration dependent)
U20 74LS126 Quadruple Tristate Buffer
U21 DS1288S RTC and Battery
U22 424260-70 256kX16dram, dual cas 70NS
U23 74ALS245 Octal tristate transceiver
U24 74ALS245 Octal tristate transceiver
U25 CACHE SOCKET (Open -- configuration dependent)
U26 ZIP SOCKET (Open -- configuration dependent)
U27 ZIP SOCKET (Open -- configuration dependent)
U28 ZIP SOCKET (Open -- configuration dependent)
U29 74LS245 Octal Tristate transceiver
U30 74F138 3 to 8 line decoder
U31 74LS245 Octal Tristate Transceiver
U32 CACHE SOCKET (Open -- configuration dependent)
U33 74LS245 Octal tristate transceiver
U34 74LS245 Octal tristate transceiver
U35 74F245 Octal tristate transceiver
U36 KM416C256AJ-7 256kX16dram, dual cas 70NS
U37 74LS245 Octal tristate transceiver
U38 74LS32M Quadruple 2 input or gate
U39 74F125 Quadruple tristate buffer
U40 74F373 Octal D tristate Latch
U41 74F373 Octal D tristate Latch
U42 74F08 quadruple 2 input and gate
U43 74F125 Quadruple tristate buffer
U44 AV9154-26 Clock Generator
U45 74HCT14 Hex Schmitt trigger inverters
U46 82C602 OPTI PC/AT data buffer chip
U47 74LS125AM Quadruple tristate buffer
U48 SURFACE MOUNTED CPU (Open -- configuration dependent)
U49 PAL16L8-7JC 16L8 PAL,7 ns
U50 CPU SOCKET 3 (Open -- configuration dependent)
U51 74LS157 Quadruple 2 to 1 multiplexer
U52 82C802/82C895 PC/AT Single Chip or System/Power Management Controller
U53 82C611A VL Bus/IDE interface
U54 LT1085T Voltage Regular
U55 TAG RAM SOCKET (Open -- configuration dependent)
U56 74F11D Triple Three input and gate
U57 64X1 Dirty Bit (Open -- configuration dependent)
U58 64X1 Dirty Bit (Open -- configuration dependent)
U59 74F245 Octal Tristate Transceiver
U60 SMT MEMORY 1MBx4 DRAM
U61 SMT MEMORY 1MBx4 DRAM
U62 SMT MEMORY 1MBx4 DRAM
U63 SMT MEMORY 1MBx4 DRAM
U64 74F126 Quadruple tristate buffer
U65 74F125 Quadruple tristate buffer
U66 SIMM SOCKET (Open -- configuration dependent)
U67 SMT MEMORY 1MBx4 DRAM
U68 SMT MEMORY 1MBx4 DRAM
U69 SMT MEMORY 1MBx4 DRAM
U70 SMT MEMORY 1MBx4 DRAM
U71 74F125 Quad Tristate buffer
U72 74F126 Quad Tristate buffer
U73 SIMM SOCKET (Open -- configuration dependent)