MC145705 Motorola, MC145705 Datasheet
MC145705
Related parts for MC145705
MC145705 Summary of contents
Page 1
... Driver/Receiver with an Integrated Standby Mode EIA–232–E and CCITT V.28 The MC145705/06/07 are a series of silicon–gate CMOS transceiver ICs that fulfill the electrical specifications of EIA–232–E and CCITT V.28 while operating from a single + 5 V power supply. These transceiver series are high performance and low power consumption devices that are equipped with standby and output enable function ...
Page 2
... C2– STB Rx1 7 14 Rx2 8 13 Tx1 9 12 Rx3 10 11 Tx2 MC145705 MC145706 MC145707 2 PIN ASSIGNMENTS C1+ C2 GND C1– C2– TxEN STB DO1 Tx1 DO2 Rx1 DI1 Tx2 DO3 Rx2 DI2 Tx3 MC145707 3 DRIVERS/3 RECEIVERS ...
Page 3
... DOUBLER + C1– RECEIVER 5 Protection Circuit DRIVER V DD 300 MOTOROLA FUNCTION DIAGRAM OSC GND VOLTAGE + INVERTER C1+ C2+ C2– + – STB TxEN LEVEL SHIFT STB DO 1 1.4 V – MC145705 MC145706 MC145707 3 ...
Page 4
... Input Threshold Hysteresis ( off ) Input Resistance High–Level Output Voltage (DO1 – DO3) V Rx1 – Rx3 = – – Low–Level Output Voltage (DO1 – DO3) V Rx1 – Rx3 = + MC145705 MC145706 MC145707 4 Value Unit – – ...
Page 5
... Min Typ Max Unit s — 0.5 1 — 0 — — 5 — — — — — 1 — — 1 — 250 400 ns — 40 100 ns — — STB Don’t Care MC145705 MC145706 MC145707 5 ...
Page 6
... PHL 90% DO1 – DO3 (OUTPUT) 10 MC145705 MC145706 MC145707 6 state. In this condition, supply current below 10 A (Typ) and can be operated with low current consumption. C2+, C2–, C1+, C1– Voltage Doubler and Inverter These are the connections to the internal voltage doubler and inverter, which generate the V DD and V SS voltages ...
Page 7
... C1 and C2. C2+ C1 GND 23 2 C2– C1– STB 20 TxEN Rx1 18 DO1 8 Tx1 17 DI1 Rx2 9 DO2 16 10 Tx2 15 DI2 Rx3 DO3 Tx3 13 DI3 MC145705 MC145706 MC145707 15 V using the 0 ...
Page 8
... SEATING PLANE –A– –B– 20X 0.010 (0.25 18X K MC145705 MC145706 MC145707 8 PACKAGE DIMENSIONS P SUFFIX PLASTIC DIP CASE 738– 0.25 (0.010) 0.25 (0.010 SUFFIX SOG PACKAGE CASE 751D–04 ...
Page 9
... EXCESS OF D DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS INCHES DIM MIN MAX MIN MAX A 15.25 15.54 0.601 0.612 B 7.40 7.60 0.292 0.299 C 2.35 2.65 0.093 0.104 _ D 0.35 0.49 0.014 0.019 F 0.41 0.90 0.016 0.035 G 1.27 BSC 0.050 BSC J 0.23 0.32 0.009 0.013 K 0.13 0.29 0.005 0.011 10.05 10.55 0.395 0.415 R 0.25 0.75 0.010 0.029 MC145705 MC145706 MC145707 9 ...
Page 10
... MC145705 MC145706 MC145707 10 This page intentionally left blank. MOTOROLA ...
Page 11
... MOTOROLA This page intentionally left blank. MC145705 MC145706 MC145707 11 ...
Page 12
... P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 MFAX: RMFAX0@email.sps.mot.com – TOUCHTONE (602) 244–6609 INTERNET: http://Design–NET.com MC145705 MC145706 MC145707 12 JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, Toshikatsu Otsuki, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–3521–8315 HONG KONG: Motorola Semiconductors H.K. Ltd. ...