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Renesas M37516F8HP#U2
- Part No.:
- M37516F8HP#U2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
M37516F8HP#U2.pdf
- Description:
- MCU, 8-BIT, FLASH
- Quantity:
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Inventory:615
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Product details
Overview
M37516F8HP#U2 from Renesas Electronics is an 8-bit CMOS microcomputer based on the 740 family core, featuring 32 KB Flash ROM, 1 KB RAM, 10-bit 8-channel A-D converter, four 8-bit timers, and I²C-BUS interface. It operates from 2.7–5.5 V and supports high-speed (8 MHz), middle-speed (4 MHz), and low-speed (32 kHz) modes - used in office automation equipment for embedded control of sensor interfaces and LED drivers.
For engineers reviewing the M37516F8HP#U2 datasheet, M37516F8HP#U2 pinout, M37516F8HP#U2 application, or M37516F8HP#U2 equivalent, key selection criteria include Flash memory size (32 KB), operating voltage range (2.7–5.5 V), integrated A-D converter resolution (10-bit × 8 ch), I²C-BUS support, and 48-pin QFP package compatibility with LED drive capability on P10–P17.
Technical Context
The M37516F8HP#U2 implements the standard 740-family instruction set with 71 machine-language instructions and a minimum execution time of 0.5 µs at 8 MHz. Its CPU includes 8-bit accumulator, index registers X/Y, 8-bit stack pointer, and 16-bit program counter with stack page selection bit controlling high-order address bits.
It integrates dual clock generating circuits - main clock (XIN/XOUT) supporting ceramic resonator or quartz crystal, and sub-clock (XCIN/XCOUT) for low-power 32 kHz operation - enabling flexible power-mode switching between high-speed (34 mW @ 8 MHz/5 V), middle-speed, and low-speed (450 µW @ 32 kHz/3 V) operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 740-family 8-bit CPU with 71 instructions and 0.5 µs min. instruction cycle @ 8 MHz |
| Memory | 32 KB Flash ROM (user area: 32638 bytes), 1 KB RAM, reserved ROM areas at start/end |
| A-D Converter | 10-bit resolution, 8 input channels (AN0–AN7), referenced to VREF and AVSS |
| Timers & PWM | Four independent 8-bit timers (T1/T2/TX/TY), one 8-bit PWM output (P44/INT3/PWM) |
| Serial Interfaces | UART or clock-synchronized Serial I/O1 (8-bit × 1), clock-synchronized Serial I/O2 (8-bit × 1), I²C-BUS (1 channel, multi-master capable) |
| Supply Voltage | 2.7–5.5 V across all speed modes; high-speed mode requires ≥4.0 V @ 8 MHz |
| Power Dissipation | 34 mW @ 8 MHz/5 V (high-speed); 450 µW @ 32 kHz/3 V (low-speed, specific to M37516F8HP) |
Pinout & Package
Package: 48-pin plastic-molded QFP (48P6Q-A), surface-mount, 0.5 mm pitch, body size 10 × 10 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Digital power domain (2.7–5.5 V); VSS serves as reference for digital logic and reset circuitry |
| XIN / XOUT | Main clock oscillator interface | Connect external ceramic resonator or quartz crystal; enables high-speed (up to 8 MHz) system timing |
| XCIN / XCOUT | Sub-clock oscillator interface | Supports 32 kHz low-power mode; required for ultra-low-power operation (450 µW) |
| P10–P17 | LED drive I/O port | CMOS outputs with enhanced current drive capability for direct LED interfacing without external drivers |
| P22/SDA1, P23/SCL1 | I²C-BUS data/clock | N-channel open-drain structure; require external pull-ups; support multi-master I²C communication |
| P30–P37 | Analog inputs | 10-bit A-D converter channels AN0–AN7; referenced to VREF and isolated analog ground (AVSS) |
| P44/INT3/PWM | Interrupt/PWM output | Configurable as edge-triggered interrupt input or 8-bit PWM signal output for motor/servo control |
Key Features
| Feature | Design Value |
|---|---|
| Flash memory programmability | Full in-system reprogrammability including reserved ROM areas (first 128 bytes and last 2 bytes) |
| Low-power operation | 450 µW consumption at 32 kHz/3 V - optimized for battery-powered office peripherals |
| Integrated analog front-end | 8-channel 10-bit A-D converter with dedicated AVSS and VREF pins for noise-sensitive measurements |
| Dual clock domains | Independent main clock (XIN/XOUT) and sub-clock (XCIN/XCOUT) enable seamless transition between performance and ultra-low-power modes |
| LED-optimized I/O | P10–P17 provide higher sink/source current than standard ports - reduces BOM count in display/control panels |
Applications
| Printer Control Unit | Document Scanner Interface |
|---|---|
Use Scenario: Real-time coordination of paper feed motors, print head timing, and status LED indicators in compact desktop printers. IC Role / Device Role / Timing Role: Central controller executing firmware for motor sequencing, sensor polling (paper jam, toner level), and I²C-based peripheral communication. Use Value: Integrated 8-bit PWM (P44) drives stepper motor coils directly; LED-drive ports (P10–P17) eliminate discrete driver ICs; 10-bit A-D reads analog sensor signals without external signal conditioning. | Use Scenario: Capturing and preprocessing image sensor data while managing USB host handshaking and power sequencing in portable document scanners. IC Role / Device Role / Timing Role: Embedded host controller handling CCD/CMOS sensor timing, ADC sampling synchronization, and UART-based command parsing from host PC. Use Value: Four 8-bit timers precisely manage pixel clock, line sync, and exposure intervals; 32 KB Flash stores firmware and calibration tables; I²C interface configures image sensor registers. |
| Smart Copier Panel | Industrial Fax Terminal |
Use Scenario: Driving segmented LCD or LED displays, decoding button matrix inputs, and managing network status LEDs in multifunction copier control panels. IC Role / Device Role / Timing Role: Human-machine interface (HMI) processor performing scan-to-email workflow initiation, display refresh, and real-time LED feedback. Use Value: P10–P17 deliver sufficient current for multiplexed LED arrays; built-in UART (Serial I/O1) connects to Ethernet/Wi-Fi module; 1 KB RAM buffers UI state and network packet headers. | Use Scenario: Managing G3 fax modem handshaking, thermal print head timing, and document feeder control in legacy office fax terminals. IC Role / Device Role / Timing Role: System-on-chip controller executing T.30/T.38 protocols, modulating audio tones via PWM, and synchronizing print head activation pulses. Use Value: UART supports modem AT-command interface; 8-bit timers generate precise 14.4 kbps symbol timing; Flash memory retains firmware updates and country-specific tone profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M37516M8-XXXHP | Mask ROM version (32 KB), no field reprogrammability; identical pinout and peripheral set | Suitable for high-volume production where firmware is fixed and cost-per-unit is critical | Select when firmware stability and unit cost outweigh need for field updates |
| RL78/G13 series (e.g., R5F100LEA) | 16-bit RL78 core, 32 KB Flash, 4 KB RAM, enhanced low-power modes, and integrated debug interface | Targets next-generation designs requiring higher code efficiency, larger RAM, and on-chip debugging | Choose for new designs needing scalability, lower active current, and modern toolchain support |
Compared with M37516F8HP#U2, the M37516M8-XXXHP offers identical functionality but lacks in-field update capability, while the RL78/G13 provides architectural advancement and debug integration at the cost of software migration effort and higher complexity for simple control tasks.
Availability
M37516F8HP#U2 is available at Aetrix Electronics and suitable for office automation equipment, consumer electronics, and industrial FA systems requiring stable component supply and long-term manufacturability.
Supply support for M37516F8HP#U2 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
Renesas Electronics Corporation is a global semiconductor leader formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions.
The 7516 Group - including M37516F8HP#U2 - was designed specifically for cost-sensitive, low-to-medium complexity embedded control in household and office automation devices, emphasizing Flash programmability, integrated analog peripherals, and LED drive capability.
FAQ
What is the maximum operating frequency supported by the M37516F8HP#U2?
The M37516F8HP#U2 supports a maximum oscillation frequency of 8 MHz in high-speed mode when powered at 4.0–5.5 V. At this frequency, its minimum instruction execution time is 0.5 µs. The device also supports 4 MHz (middle-speed) and 32 kHz (low-speed) modes for power-constrained operation - all validated in the official Renesas documentation for M37516F8HP#U2.
Does the M37516F8HP#U2 include a hardware watchdog timer?
Yes, the M37516F8HP#U2 includes a dedicated 16-bit watchdog timer to detect and recover from software lockups. It is implemented as a free-running counter that must be periodically cleared by firmware; failure to clear triggers a system reset. This feature is documented in the functional description section of the M37516F8HP#U2 datasheet and is fully operational across all supported power modes.
Can the M37516F8HP#U2 operate from a 3.3 V supply?
Yes, the M37516F8HP#U2 operates from 2.7 V to 5.5 V across all speed modes, including 3.3 V. At 3.3 V, it supports low-speed mode (32 kHz) with 450 µW power dissipation and high-speed mode up to 6.5 MHz (derated from 8 MHz per voltage-frequency specification). This 3.3 V compatibility is explicitly confirmed in the "Power source voltage" section of the M37516F8HP#U2 datasheet.
How many I/O pins on the M37516F8HP#U2 support LED driving?
Eight I/O pins - P10 through P17 - are specifically enabled for LED driving with enhanced current capability in the M37516F8HP#U2. These pins are configured as CMOS outputs with higher sink/source current than standard ports, allowing direct connection to common-anode or common-cathode LED segments without external driver transistors - a design feature confirmed in the pin description table for M37516F8HP#U2.
Is the I²C-BUS interface on the M37516F8HP#U2 multi-master capable?
Yes, the M37516F8HP#U2 includes a multi-master I²C-BUS interface (1 channel), as stated in the "Features" section of its official datasheet. Pins P22/SDA1 and P23/SCL1 implement open-drain I²C signaling with built-in arbitration logic, enabling multiple controllers to share the same bus - a capability verified in the functional block diagram and register-level description of the M37516F8HP#U2.
M37516F8HP#U2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
M37516F8HP#U2 FAQ
1.How can I place an order for M37516F8HP#U2 through Aetrix?
Please submit a Request for Quotation (RFQ) for M37516F8HP#U2 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 M37516F8HP#U2 reliable?
The price and inventory of M37516F8HP#U2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M37516F8HP#U2 is usually 5 days.
3.What payment methods are accepted for M37516F8HP#U2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M37516F8HP#U2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M37516F8HP#U2?
M37516F8HP#U2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M37516F8HP#U2 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 M37516F8HP#U2?
For technical support, including M37516F8HP#U2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M37516F8HP#U2 requirements.
6.How does Aetrix verify that M37516F8HP#U2 is sourced from the original manufacturer or authorized distributors?
All M37516F8HP#U2 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 M37516F8HP#U2 meets industry standards.
7.What is the process for return or replacement of M37516F8HP#U2?
All M37516F8HP#U2 units undergo pre-shipment inspection (PSI). If there is an issue with M37516F8HP#U2, 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 M37516F8HP#U2 part is unused and in its original packaging.
Return procedure for M37516F8HP#U2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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