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Analog Devices Inc./Maxim Integrated MAX3008EUP+
- Part No.:
- MAX3008EUP+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
MAX3008EUP+.pdf
- Description:
- IC TRANSLATOR UNIDIR 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:128
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Product details
Overview
MAX3008EUP+ from Maxim Integrated is an 8-channel unidirectional logic-level translator enabling bidirectional voltage translation between +1.2V and +5.5V domains without direction control pins. It supports guaranteed 20Mbps data rate across full operating voltage range, features ±15kV HBM ESD protection on I/O VCC lines, and operates from -40°C to +85°C in 20-pin TSSOP package. Used in SPI/MICROWIRE interfaces between low-voltage ASICs and 3.3V/5V systems.
For engineers reviewing the MAX3008EUP+ datasheet, MAX3008EUP+ pinout, MAX3008EUP+ application, or MAX3008EUP+ equivalent, this page delivers verified electrical parameters, validated pin functions, real-world timing behavior under load, EN-controlled channel partitioning, and direct alternative options for multivoltage interface design.
Technical Context
The MAX3008EUP+ implements unidirectional level translation (VL → VCC and VCC → VL) using a dual-rail architecture with independent VL and VCC supplies. Its EN pin enables selective shutdown of four VCC-side outputs (I/O VCC5–I/O VCC8) while pulling down corresponding VL-side inputs (I/O VL5–I/O VL8) via 6kΩ internal resistors.
It guarantees 20Mbps operation over +1.2V ≤ VL ≤ VCC ≤ +5.5V, with propagation delay as low as 15ns (typical) when driving 15pF loads at 2.5V–3.3V rails. Rise/fall times are 15ns (typical) under same conditions, and channel-to-channel skew is limited to 5ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Direction | Unidirectional (VL ↔ VCC), with EN-controlled partitioning of channels 1–4 vs. 5–8 |
| Max Data Rate | 20Mbps guaranteed over full voltage range; up to 35Mbps at +2.5V ≤ VL ≤ VCC ≤ +3.3V |
| Supply Range | VL: +1.2V to +5.5V; VCC: +1.65V to +5.5V - enables interfacing 1.2V/1.8V ASICs with 3.3V/5V peripherals |
| ESD Protection | ±15kV HBM on I/O VCC pins - protects external signal routing in handheld and portable equipment |
| Shutdown Current | < 2µA per supply (VCC/VL) when EN = low - critical for battery-powered GPS and POS systems |
| Propagation Delay | 15ns (typ) I/OVL→VCC and I/OVCC→VL at 15pF load - ensures timing compliance in high-speed serial links |
| Channel Skew | 5ns max (channel-to-channel) - maintains signal integrity across all 8 translated lines |
Pinout & Package
MAX3008EUP+ is housed in a 20-pin TSSOP (5.0mm × 6.5mm, 0.65mm pitch) with exposed pad for thermal management. Pin 1 is I/O VL1; Pin 20 is I/O VCC1; Pin 10 is EN; Pin 11 is GND; Pin 19 is VCC; Pin 2 is VL; Pin 11 connects to ground plane via exposed pad (EP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I/O VL1–I/O VL4 | VL-referenced bidirectional I/O (channels 1–4) | Active when EN = high (VL); three-state when EN = low |
| I/O VL5–I/O VL8 | VL-referenced bidirectional I/O (channels 5–8) | Pulled down by 6kΩ resistors when EN = low; active when EN = high |
| I/O VCC1–I/O VCC4 | VCC-referenced bidirectional I/O (channels 1–4) | Active when EN = high; three-state when EN = low |
| I/O VCC5–I/O VCC8 | VCC-referenced bidirectional I/O (channels 5–8) | Three-state when EN = high; active when EN = low |
| EN | Enable control input | Low = activate channels 5–8 (VCC/VL), disable 1–4; High = reverse - enables bus multiplexing |
| VL | Lower-voltage supply rail | +1.2V to +5.5V; must be bypassed with 0.1µF capacitor to GND |
| VCC | Higher-voltage supply rail | +1.65V to +5.5V; must be bypassed with 0.1µF capacitor to GND |
| GND | Common reference ground | Connects to PCB ground plane; EP pad must also connect to GND for thermal and EMI performance |
Key Features
| Feature | Design Value |
|---|---|
| EN-controlled channel partitioning | EN low activates channels 5–8 only; EN high activates channels 1–4 only - eliminates need for external bus switches |
| Guaranteed 20Mbps operation | Validated across full VL/VCC voltage range (+1.2V to +5.5V), not just nominal rails - simplifies system-level timing margining |
| ±15kV HBM ESD on I/O VCC | Protects against handling and system-level ESD events without latch-up - reduces field failure risk in consumer handhelds |
| Ultra-low shutdown current | < 2µA total supply current (VCC + VL) during EN = low - extends battery life in portable GPS and smart card readers |
| 15pF-optimized timing | 15ns propagation delay and rise/fall time specified at 15pF load - matches typical PCB trace + connector capacitance |
Applications
| Smart Card Readers | SPI Level Translation |
|---|---|
Use Scenario: Translating ISO 7816 signals between 1.8V smart card ICs and 3.3V host controllers. IC Role / Device Role / Timing Role: Unidirectional level shifter with EN-controlled channel grouping for reset/data line isolation. Use Value: Eliminates discrete MOSFET translators and reduces BOM count while maintaining ±15kV ESD robustness on contact interface lines. |
Use Scenario: Interfacing 1.8V FPGA SPI master with 3.3V sensor slave in portable medical devices. IC Role / Device Role / Timing Role: 20Mbps-capable bidirectional translator supporting SCLK/MOSI/MISO with sub-15ns skew. Use Value: Enables full-duplex SPI at 10MHz without timing violations, even with 15pF interconnect loading. |
| Portable POS Terminals | Cellphone Cradles |
Use Scenario: Level-shifting UART and GPIO signals between 1.2V baseband processor and 5V peripheral modules. IC Role / Device Role / Timing Role: EN-gated channel bank allows dynamic power gating of unused I/O banks during sleep mode. Use Value: Reduces standby current to <2µA per supply, extending battery runtime without firmware changes. |
Use Scenario: Bridging 1.8V USB PHY signals to 3.3V cradle controller in docking station designs. IC Role / Device Role / Timing Role: Dual-rail translator with independent VL/VCC supplies isolates voltage domains during hot-plug events. Use Value: Prevents back-powering and ensures safe power sequencing - no external level-shifting FETs required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX3002EUP+ | Bidirectional (no EN pin); 20Mbps; same package; no channel partitioning | Used where all 8 channels require simultaneous translation without enable control | Select MAX3002EUP+ when full 8-channel concurrency is needed and EN-based multiplexing is unnecessary |
| TXB0108PWR | TI device; auto-direction sensing; 100Mbps; 20-pin TSSOP; no ±15kV ESD on VCC I/O | Preferred for high-speed I²C/SPI with mixed-direction traffic; lacks dedicated ESD hardening for external routing | Choose TXB0108PWR for higher bandwidth and automatic direction detection; use MAX3008EUP+ where ESD robustness and controlled channel enable are critical |
Compared with MAX3002EUP+, MAX3008EUP+ adds EN-controlled half-bank activation for bus sharing; compared with TXB0108PWR, it trades raw speed for certified ±15kV HBM protection and deterministic enable timing - essential in portable consumer interfaces subject to frequent ESD exposure.
Availability
MAX3008EUP+ is available at Aetrix Electronics and suitable for smart card readers, portable POS terminals, cellphone cradles, and GPS modules requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MAX3008EUP+ 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX3000E–MAX3012 family targets multivoltage system interfacing, specifically addressing ESD-hardened, low-power, high-speed logic translation between sub-1.8V ASICs and legacy 3.3V/5V peripherals.
FAQ
What is the maximum data rate supported by the MAX3008EUP+ under real-world PCB conditions?
The MAX3008EUP+ guarantees 20Mbps operation across its full voltage range (+1.2V ≤ VL ≤ VCC ≤ +5.5V). At optimized conditions (+2.5V ≤ VL ≤ VCC ≤ +3.3V with 15pF load), it achieves up to 35Mbps. Real-world performance depends on trace capacitance and driver strength - the datasheet specifies 15ns propagation delay and rise/fall times at 15pF, matching typical board-level parasitics.
How does the EN pin function on the MAX3008EUP+ and what is its impact on I/O states?
On the MAX3008EUP+, the EN pin controls channel partitioning: when EN = low, channels 5–8 (I/O VL5–I/O VL8 and I/O VCC5–I/O VCC8) are active, while channels 1–4 are placed in three-state. When EN = high, channels 1–4 are active and channels 5–8 enter three-state. This enables hardware-selectable bus multiplexing without external logic.
Does the MAX3008EUP+ provide ESD protection on both VL and VCC I/O sides?
The MAX3008EUP+ provides ±15kV HBM ESD protection exclusively on the I/O VCC pins (pins 12–20), as confirmed in the Absolute Maximum Ratings and Detailed Description sections. The I/O VL pins (pins 1–9) do not carry this rating - system-level ESD design must account for this asymmetry, especially when VL-side signals connect to external connectors.
Can the MAX3008EUP+ operate with VL greater than VCC, and what happens during power-up sequencing?
Yes - the MAX3008EUP+ tolerates VL ≥ VCC during power-up without damage, per Note 2 in the Electrical Characteristics. However, for normal operation, VL must be ≤ VCC. During VL-first sequencing, up to 10mA can be sourced to each VL-side load, but the device remains latch-up free and functional throughout.
What are the supply current requirements for the MAX3008EUP+ in active and shutdown modes?
In active mode, the MAX3008EUP+ draws less than 10µA total quiescent current (IQVCC + IQVL) at +25°C. In shutdown (EN = low), supply currents drop to < 2µA per rail (VCC and VL), totaling under 4µA - verified in the Electrical Characteristics table under ISHDN-VCC and ISHDN-VL parameters.
MAX3008EUP+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- Packaging:
- Tube
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Unidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 8
- Voltage - VCCA:
- 1.2 V ~ 5.5 V
- Voltage - VCCB:
- 1.65 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State, Non-Inverted
- Data Rate:
- 35Mbps
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- Power Supply Decoupling
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP (0.173", 4.40mm Width)
MAX3008EUP+ FAQ
1.How can I place an order for MAX3008EUP+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX3008EUP+ 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 MAX3008EUP+ reliable?
The price and inventory of MAX3008EUP+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX3008EUP+ is usually 5 days.
3.What payment methods are accepted for MAX3008EUP+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX3008EUP+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX3008EUP+?
MAX3008EUP+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX3008EUP+ 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 MAX3008EUP+?
For technical support, including MAX3008EUP+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX3008EUP+ requirements.
6.How does Aetrix verify that MAX3008EUP+ is sourced from the original manufacturer or authorized distributors?
All MAX3008EUP+ 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 MAX3008EUP+ meets industry standards.
7.What is the process for return or replacement of MAX3008EUP+?
All MAX3008EUP+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX3008EUP+, 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 MAX3008EUP+ part is unused and in its original packaging.
Return procedure for MAX3008EUP+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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