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NEXO NX242 DIGITAL TDcontroller Service manual rev100606
P.21
U1501
1
Operational Amplifier, Quad, Low Power, Single Supply, case=SO14
On Semiconductor MC33174D
Digital Ics
U5106
1
5-pin Microprocessor Supervisory Circuit
MAXIM MAX824LEUK-T
U1505
1
74AHCT74 Dual D-type Flip Flop with set and reset, positive-edge trigger,
case=SO14
Philips
74AHCT74
U5401 U5402
2
74HC191 Presettable synchronous 4 bit binary up/down counter,
case=SO16
Philips
74HC191M1R
U5202 U5203 U5204
3
74HCT273 Octal D-Type Flip Flops with clear, case=SO20
74HCT273
U5103
1
74HCT373 Octal D-type latch 3-STATE, case=SO20
Philips 74HCT373D
U5205 U5206 U5403
3
74HCT377 Octal D-Type Flip Flops with clock enable, case=SO20
Philips 74HCT377D
U5207
1
74HCT541 Octal Buffer & line driver with 3 state output, case=SO20
Philips 74HCT541D
U1503 U1504
2
Converter, A to D, 18-bit 48kHz
Crystal CS5330A-KS
U1403
1
Converter, A to D, 24-bit 192kHz
AKM AK5394A
U1601 U1602
2
Converter, D to A, 24-bit, 96kHz
AKM AK4393
U5201
1
CPLD Xilinx XC9536 in PLCC44
XILINX XC9536-15PC44C
U5301
1
DSP 56303 24-Bit General-Purpose Digital Signal Processor
U5105
1
Flash memory, 2Megabit (256K x 8), 90ns, 5-volt only, CMOS, PLCC32
ATMEL AT29C020-90JC
U5101
1
Microcontroller TS80C32X2 (second footprint with Harwin D830)
TS80C32X2
U1205 U1303 U1702 U1802 U1902 U2002
6
Multiplexer 8-channel Analog DG408, case=SOIC
Vishay Intersil DG408DY
U1506
1
74AHCT00 Quadruple 2-input positive-NAND gate, case=SO14
74AHCT00
U5107
1
74HCT00 Quadruple 2-input positive-NAND gate, case=SO15
74HCT01
U5302
1
SRAM, CMOS, Very Low Power, 128k*8, CMOS SOP32
BSI BS62LV1024SC-70
U5104
1
SRAM, CMOS, Very low Power, 32k*8, 70ns
Cypress CY62256-70SNC
RL1001 RL1002
2
RELAY DPDT OMRON G5V-2
Omrom G5V-2
U5102
1
RS232 ransceiver with 0.1uF external capacitors
MAXIM MAX202ECSE / IN202ECB
TST1201 TST1202 TST1601 TST1203 TST1204
TST1301 TST1302 TST1303 TST1401 TST1402
TST1403 TST1404 TST1602 TST1603 TST1604
TST1605 TST2501 TST2502 TST2503 TST2504
TST2505 TST
33
Thru Hole Mount test point Multipupose (hole 1.6mm diam.)
Keystone 5010
Resistors
