Texas Instruments SN65C3243, SN75C3243 User's Manual and Specifications

查询SN75C3243供应商

SLLS353D − JUNE 1999 − REVISED MARCH 2004

Operate With 3-V to 5.5-V VCC Supply DB, DW, OR PW PACKAGE (TOP VIEW)

Always-Active Noninverting Receiver Output (ROUT2B)

Low Standby Current 1 µA Typical

C2− V+ External Capacitors 4 × 0.1 µF V− VCC

RIN1 GND

Accept 5-V Logic Input With 3.3-V Supply

RIN2 C1−

Inter-Operable With SN65C3238,

RIN3 FORCEON

SN75C3238

RIN4 FORCEOFF

Support Operation From 250 kbit/s to

RIN5 INVALID

1 Mbit/s

DOUT1 ROUT2B

RS-232 Bus-Pin ESD Protection Exceeds

DOUT2 ROUT1

±15-k V Using Human-Body Model (HBM)

DOUT3 ROUT2

Latch-Up Performance Exceeds 100 m A Per DIN3 ROUT3 JESD 78, Class II DIN2 ROUT4

Applications DIN1 ROUT5

− Battery-Powered Systems, PDAs, Notebooks, Laptops, Palmtop PCs, and Hand-Held Equipment

description/ordering information The SN65C3243 and SN75C3243 consist of three line drivers, five line receivers, and a dual charge-pump circuit with ±15-k V ESD protection pin-to-pin (serial-port connection pins, including GND). These devices provide the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. In addition, these devices include an always-active noninverting output (ROUT2B), which allows applications using the ring indicator to transmit data while the devices are powered down. The devices operate at data signaling rates up to 1 Mbit/s and an increased slew-rate range of 24 V/µs to 150 V/µs.

ORDERING INFORMATION

ORDERABLE TOP-SIDE

TA PACKAGE†

PART NUMBER MARKING

Tube of 20 SN75C3243DW

SOIC (DW) 75C3243

Reel of 1000 SN75C3243DWR

−0°C to 70°C SSOP (DB) Reel of 2000 SN75C3243DBR 75C3243

Tube of 50 SN75C3243PW

TSSOP (PW) CA3243

Reel of 2000 SN75C3243PWR Tube of 20 SN65C3243DW

SOIC (DW) 65C3243

Reel of 1000 SN65C3243DWR

−40°C to 85°C SSOP (DB) Reel of 2000 SN65C3243DBR 65C3243

Tube of 50 SN65C3243PW

TSSOP (PW) 65C3243

Reel of 2000 SN65C3243PWR

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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