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Texas Instruments DS14C88MX/NOPB
- Part No.:
- DS14C88MX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DS14C88MX/NOPB.pdf
- Description:
- IC TRANSCEIVER 4/0 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,616
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Product details
Overview
DS14C88MX/NOPB from Texas Instruments is a quad CMOS line driver IC designed to translate TTL/CMOS logic levels to EIA-232D and CCITT V.28 compliant RS-232 voltage levels in DTE-to-DCE interface circuits. It operates from ±5V to ±12V supplies, consumes only 500 μA typical ICC+ at ±12V, provides on-chip slew rate control, and delivers ±3.0V to ±10.5V output swing into 3 kΩ or 7 kΩ loads.
For engineers reviewing the DS14C88MX/NOPB datasheet, DS14C88MX/NOPB pinout, DS14C88MX/NOPB application, or DS14C88MX/NOPB equivalent, key selection criteria include its SOIC-14 package, guaranteed propagation delay ≤4.0 μs at ±12V, integrated slew rate limiting eliminating external capacitors, and compatibility with legacy bipolar DS1488/MC1488 designs.
Technical Context
The DS14C88MX/NOPB implements four independent CMOS driver channels with rail-to-rail output swing capability across ±4.5V to ±12.6V dual supplies. Each channel features input thresholds of 0.6–0.8V (low) and 2.0V (high), and output short-circuit currents of ±45 mA per channel under ±12V conditions.
It uses low-threshold CMOS metal-gate technology to achieve 50× lower quiescent current than bipolar equivalents while meeting EIA-232D timing requirements: tPLH/tPHL ≤4.0 μs, tr/tf ≤1.0 μs, and skew ≤150 ns at ±12V - all without external slew-rate components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±4.5V to ±12.6V - supports legacy and modern RS-232 systems without level-shifting circuitry |
| ICC+ (Typ) | 500 μA at ±12V - enables low-power portable and battery-backed RS-232 interfaces |
| VOH/VOL Range | +3.0V to +10.5V / −3.0V to −10.5V - meets EIA-232D minimum ±3V logic margin with headroom for cable loss |
| Propagation Delay | ≤4.0 μs (tPLH/tPHL at ±12V) - ensures reliable data transmission up to ~100 kbps in standard UART links |
| Slew Rate | 30 V/μs - limits electromagnetic interference and satisfies EIA-232D dV/dt compliance without external RC networks |
| Input Current | ±10 μA max - reduces loading on upstream logic gates and simplifies fan-out design |
| Output Resistance | 300 Ω - defines drive strength into standard 3–7 kΩ RS-232 receiver inputs |
Pinout & Package
DS14C88MX/NOPB is housed in a 14-pin SOIC package (Package Drawing D, JEDEC MS-012), measuring 8.65 mm × 3.91 mm × 1.75 mm, with gull-wing leads and RoHS-compliant matte tin (Sn) finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | Driver Inputs (IN A–D) | TTL/CMOS-compatible digital inputs accepting 0.6–0.8V low and 2.0V high thresholds |
| 2, 5, 11, 14 | Driver Outputs (OUT A–D) | EIA-232D-compliant outputs delivering ±3.0V to ±10.5V swing into 3–7 kΩ loads |
| 3 | V+ | Positive supply rail (±4.5V to ±12.6V); powers high-side output stage |
| 6 | V− | Negative supply rail (±4.5V to ±12.6V); powers low-side output stage |
| 7 | GND | Analog/digital reference ground common to all drivers and supplies |
| 8, 9, 12 | No Connect (NC) | Internally unconnected pins; must remain floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| On-chip slew rate control | Eliminates need for external 1–2 nF slew-limiting capacitors, reducing BOM count and PCB area |
| Pin-for-pin compatibility with DS1488/MC1488 | Enables drop-in CMOS upgrade of legacy bipolar RS-232 driver designs without layout changes |
| Low power consumption (500 μA) | Reduces thermal load and extends battery life in portable terminals and embedded modems |
| Wide supply range (±5V to ±12V) | Supports both modern low-voltage RS-232 transceivers and legacy ±12V industrial equipment |
| ESD protection (≥1.0 kV HBM) | Provides baseline handling robustness during assembly without requiring additional protection diodes |
Applications
| Industrial Serial Interface | Legacy Equipment Adapter |
|---|---|
|
Use Scenario: Connecting PLCs or HMIs to older CNC machines using RS-232 physical layer. IC Role / Device Role / Timing Role: Quad line driver translating microcontroller UART signals to full EIA-232D voltage levels. Use Value: Delivers ±10.5V output swing at ±12V supply to overcome long-cable attenuation and noise in factory-floor environments. |
Use Scenario: Retrofitting RS-232 ports onto modern single-board computers lacking native ±12V generation. IC Role / Device Role / Timing Role: Level-shifting driver enabling TTL UARTs to drive standard RS-232 receivers. Use Value: Operates down to ±4.5V supply, allowing use with charge-pump-based ±5V RS-232 supplies instead of bulky transformers. |
| Point-of-Sale Terminal | Medical Diagnostic Interface |
|
Use Scenario: Driving receipt printers and barcode scanners in retail POS systems with strict power budgets. IC Role / Device Role / Timing Role: Low-quiescent-current RS-232 driver supporting always-on serial communication. Use Value: Draws only 500 μA at ±12V, minimizing standby power draw compared to 25 mA bipolar alternatives. |
Use Scenario: Isolating and conditioning serial data between patient monitors and central logging servers. IC Role / Device Role / Timing Role: Signal translator ensuring EIA-232D voltage compliance in safety-critical diagnostic chains. Use Value: Guaranteed 150 ns max propagation skew across all four drivers maintains timing integrity in multi-channel diagnostic data streams. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RS-232 line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX232ACPE+ | Integrated charge pump generates ±10V from +5V; dual driver/receiver; requires 1 μF external capacitors | Single-supply operation; suitable for compact 5V-only systems where space and supply count are constrained | Select MAX232ACPE+ when board lacks ±12V rails and needs bidirectional RS-232 transceivers in one package |
| SN75188N | Bipolar technology; 25 mA ICC+; no on-chip slew control; requires external 1 nF capacitor per output | Higher power dissipation and thermal sensitivity; legacy replacement where DS14C88MX/NOPB is unavailable | Select SN75188N only if existing design uses through-hole DIP-14 and cannot accommodate SOIC footprint or revised layout |
Compared with MAX232ACPE+ and SN75188N, DS14C88MX/NOPB uniquely combines quad unidirectional drive, SOIC-14 packaging, zero external slew components, and ultra-low 500 μA supply current - making it optimal for fixed-supply, low-power, high-reliability RS-232 line driving where bidirectional capability is unnecessary.
Availability
DS14C88MX/NOPB is available at Aetrix Electronics and suitable for industrial serial interface, legacy equipment adapter, and point-of-sale terminal applications requiring stable component supply and long-term manufacturability.
Supply support for DS14C88MX/NOPB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, specializing in analog, embedded processing, and connectivity technologies with over 90 years of innovation in industrial and communications ICs.
The DS14C88MX/NOPB belongs to TI's legacy RS-232 interface product line, engineered specifically for robust, low-power, pin-compatible upgrades of bipolar line drivers in industrial, medical, and point-of-sale equipment.
FAQ
What is the maximum operating temperature range for DS14C88MX/NOPB?
The DS14C88MX/NOPB is rated for operation from 0°C to +75°C ambient temperature. This range is specified in the Recommended Operating Conditions table of the official TI datasheet (SNLS080C). The device's junction temperature must not exceed +150°C, and derating applies above +25°C per the Absolute Maximum Ratings table. DS14C88MX/NOPB is not qualified for extended industrial (−40°C to +85°C) or automotive temperature grades.
Does DS14C88MX/NOPB require external capacitors for slew rate control?
No, DS14C88MX/NOPB does not require external capacitors for slew rate control. Its datasheet explicitly states that "slew rate control in accordance with EIA-232D is provided on-chip, eliminating the output capacitors." This internal implementation reduces component count and PCB area versus bipolar alternatives like the SN75188N, which mandates a 1 nF capacitor per output.
Is DS14C88MX/NOPB pin-compatible with the original DS1488?
Yes, DS14C88MX/NOPB is pin-for-pin compatible with the DS1488 and MC1488 as confirmed in the TI datasheet's first sentence: "The DS14C88, pin-for-pin compatible to the DS1488/MC1488, is a quad line driver." This allows direct replacement in existing SOIC-14 or PDIP-14 footprints without layout modification, though supply decoupling and thermal considerations differ due to CMOS vs. bipolar architecture.
What is the output short-circuit current rating for DS14C88MX/NOPB?
DS14C88MX/NOPB has a guaranteed output short-circuit current of ±45 mA per channel when tested under ±12V supply conditions with VIN = 0.8V (low) or 2.0V (high) and VO = GND. The datasheet cautions that simultaneous shorting of multiple outputs may exceed device power dissipation limits, so fault protection must be implemented at the system level.
Can DS14C88MX/NOPB operate from a single +5V supply?
No, DS14C88MX/NOPB requires dual supplies: a positive rail (V+) and a negative rail (V−). The Recommended Operating Conditions specify V+ from +4.5V to +12.6V and V− from −4.5V to −12.6V. It cannot function with only a +5V supply - unlike charge-pump-based transceivers such as the MAX232, which generate internal negative voltage from +5V.
DS14C88MX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Driver
- Protocol:
- RS232
- Number of Drivers/Receivers:
- 4/0
- Duplex:
- -
- Receiver Hysteresis:
- -
- Data Rate:
- -
- Voltage - Supply:
- 4.5V ~ 12.6V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
DS14C88MX/NOPB FAQ
1.How can I place an order for DS14C88MX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for DS14C88MX/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DS14C88MX/NOPB reliable?
The price and inventory of DS14C88MX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS14C88MX/NOPB is usually 5 days.
3.What payment methods are accepted for DS14C88MX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS14C88MX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS14C88MX/NOPB?
DS14C88MX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS14C88MX/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DS14C88MX/NOPB?
For technical support, including DS14C88MX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS14C88MX/NOPB requirements.
6.How does Aetrix verify that DS14C88MX/NOPB is sourced from the original manufacturer or authorized distributors?
All DS14C88MX/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DS14C88MX/NOPB meets industry standards.
7.What is the process for return or replacement of DS14C88MX/NOPB?
All DS14C88MX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with DS14C88MX/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DS14C88MX/NOPB part is unused and in its original packaging.
Return procedure for DS14C88MX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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