MCU module (RS-485 communication) circuit

Example of MCU module circuit by discrete solution

MCU module (RS-485 communication) circuit

Lineup

Standard digital isolator

Part number DCL540C01 DCL540D01 DCL540L01 DCL540H01 DCL541A01 DCL541B01
Package SOIC16-W
Channel 4 (Forward: 4, Reverse: 0) 4 (Forward: 3, Reverse: 1)
BVS [Vrms] 5000
Topr [°C] -40 to 110
Default Output State Low High Low High Low High
Control signal - Output Enable Input Disable

[Note] DCL54xx01 Series products are under development. The specification is subject to change without notice.

Standard digital isolator

High voltage CMOS linear regulator

Part number Output voltage [V] Marking
TCR1HF18A/B 1.8 1F8
TCR1HF25A/B 2.5 2F5
TCR1HF28A/B 2.8 2F8
TCR1HF30A/B 3.0 3F0
TCR1HF31A/B 3.1 3F1
TCR1HF32A/B 3.2 3F2
TCR1HF33A/B 3.3 3F3
TCR1HF50A/B 5.0 5F0

A : With discharge function,  B : Without discharge function

[Note] TCR1HFxxA / TCR1HFxxB products are under development. The specification is subject to change without notice.

High voltage CMOS linear regulator

Small surface mount LDO regulator

Part number TCR3DF Series TCR2EF Series
Package SMV SMV
VIN (Max) [V] 5.5 5.5
IOUT (Max) [mA] 300 200
VOUT [V] 1.0 to 4.5 1.0 to 5.0

Small surface mount LDO regulator

CMOS logic IC

Part number 74VHC125FT 74VHC541FT 74VHCV541FT
Package TSSOP14B TSSOP20B
VCC [V] 2.0 to 5.5 2.0 to 5.5 1.8 to 5.5
tPD (Typ.) [ns]
@VCC = 5 V, CL = 15 pF		 3.8 3.5 3.9
Topr (Max) [°C] 125 125 125
Function

Quad bus buffer
Non-inverted

(3-state outputs)

Octal bus Buffer
Non-inverted

(3-state outputs)

Octal Schmitt bus buffer
Non-inverted

(3-state outputs)

CMOS logic IC

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